JP6118973B2 - Thermoelectric equipment simulation system and thermoelectric equipment operating method - Google Patents

Description

  The present invention relates to a thermoelectric equipment simulation system and a thermoelectric equipment operating method. More specifically, a plurality of thermoelectric devices are connected, and at least electric power and fuel (hereinafter referred to as “supplied energy”) are supplied, and at least of electric power, low cold water, cold water, hot water, hot water supply, high pressure steam and low pressure steam. The operating conditions of the thermoelectric equipment in the thermoelectric equipment that manufactures and supplies any two types (hereinafter referred to as “composite total energy”) to the utilization equipment and the amount of supply energy used or the amount of composite total energy produced The present invention relates to a thermoelectric facility simulation system and a thermoelectric facility operating method for obtaining a relationship.

  The following Patent Document 1 is known for the thermoelectric equipment simulation system and the thermoelectric equipment operating method as described above. According to this document, based on the changed load factor, the load factor of the thermoelectric device is changed so that any production amount of the combined total energy converges to the target value set by the energy load setting unit. Accurate simulation is performed by adjusting the balance of at least the combined total energy related to the thermoelectric device, and repeating the change and adjustment of the load factor of the thermoelectric device until the production amount converges to the target value.

  On the other hand, in recent years, solar power generation devices and solar heat collectors are also used, but they are only used together with other thermoelectric devices and have not been used in an integrated manner. Therefore, the simulation of the utilization efficiency of solar power generation devices and solar collectors has not been performed accurately, and it is not possible to save energy by using these solar power devices integrated with other thermoelectric devices. It was still insufficient.

International Publication No. 2009/128548

  In view of such a conventional situation, an object of the present invention is to provide a thermoelectric equipment simulation system and a thermoelectric equipment operating method capable of rationally integrating and utilizing solar-related equipment and other thermoelectric equipment. To do.

  In order to achieve the above object, the thermoelectric equipment simulation system according to the present invention is characterized in that a plurality of thermoelectric devices are connected, at least electric power and fuel (supply energy) are supplied, at least electric power, low cold water, cold water, hot water, The operating conditions of the thermoelectric equipment in the thermoelectric equipment that manufactures at least any two types of hot water supply, high-pressure steam, and low-pressure steam (composite total energy) and supplies them to the use equipment and the amount of energy used or the total energy The thermoelectric device includes a thermoelectric device including at least a solar power generation device and / or a solar heat collection device (solar-related device) and a pump using a motor. Separately, an energy load setting unit for setting the total amount of composite energy required by the facility to be used for each time zone, and the thermoelectric And a process condition setting unit for setting process conditions including at least one of the outside air temperature or wet bulb temperature of the equipment used and the horizontal solar radiation amount of the solar-related equipment, and whether or not each thermoelectric device can be operated by time zone And an operation condition setting unit for setting operation priority, and a calculation unit for calculating at least the production amount of the combined total energy as a result of operating the thermoelectric equipment according to the operation condition of the operation condition setting unit, Any one of the devices other than the solar-related device includes a partial load characteristic that varies depending on the process conditions, and the solar-related device varies depending on the slope solar radiation amount and the outside air temperature based on the horizontal solar radiation amount among the process conditions. And the calculation unit produces any one of the combined total energies in accordance with output fluctuations of the solar-related equipment. The load factor of the thermoelectric device is changed so that it converges to the target value set by the energy load setting unit, and at least the balance of the combined total energy related to the thermoelectric device is adjusted based on the changed load factor Then, the convergence calculation is performed by repeatedly changing the load factor of the thermoelectric device and the adjustment until the production amount converges to the target value.

  According to the above characteristic configuration, the thermoelectric device includes at least a solar power generation device and / or a solar heat collecting device (solar-related device). Moreover, the thermoelectric apparatus provided with the pump using a motor at least is included. Solar-related equipment has output characteristics that vary depending on the amount of solar radiation and the outside air temperature based on the horizontal solar radiation amount among the process conditions. And a calculating part changes the load factor of the said thermoelectric equipment so that the production amount of either of composite total energy will converge on the target value set in the energy load setting part with the output fluctuation | variation of sunlight related apparatus. Therefore, other types of thermoelectric devices automatically adjust their outputs according to variations in solar related thermoelectric devices.

  Based on the changed load factor, the balance of at least the total energy related to the thermoelectric device is adjusted, and the load factor of the thermoelectric device is repeatedly changed and adjusted until the production amount converges to the target value. Perform the calculation. Thereby, it becomes possible to rationally integrate and use solar-related devices and other thermoelectric devices.

  Here, the slope solar radiation amount includes latitude, longitude, altitude, time, horizontal horizontal solar radiation amount, horizontal plane global solar radiation directly achieved and horizontal horizontal solar radiation amount of the horizontal solar radiation data of the date and time including the sky scattering component, and It is desirable to obtain the sum of the directly achieved slope solar radiation amount, the slope solar radiation sky scattering component, and the slope solar radiation ground reflection component, which are respectively derived from the panel inclination and orientation of the solar-related device.

  The solar-related device includes the solar power generation device, and the generated power of the solar power generation device may be obtained by the following equation.

  The solar-related device includes the solar heat collecting device, and the amount of heat collected Qco of the solar heat collecting device may be obtained by the following equation.

  The solar-related device may include the solar power generation device, the thermoelectric device may include a power generation system device, and the fluctuation of the generated power of the solar power generation device may be absorbed by adjusting the load factor of the power generation system device.

  The solar-related device includes the solar heat collecting device, the thermoelectric device includes a solar hot water input type absorption refrigerator and / or a solar hot water heat exchanger, and changes in the amount of heat collected by the solar heat collecting device are input to the solar hot water. It may be absorbed by adjusting the amount of combustion of the mold absorption refrigerator and / or adjusting the amount of heat of hot water and / or cold water by other thermoelectric devices.

  After the temperature of the solar hot water supplied from the solar heat collecting device exceeds a predetermined value, the solar hot water charging type absorption refrigerator and / or the solar hot water heat exchanger is preferably used for operation.

  The combined total energy may be calculated in the order of steam energy before power energy and other energy before this steam energy. For example, cold water and hot water can be produced from steam energy, and steam energy can be generated during the production process of electric power energy, so that energy loss can be reduced and rational calculation can be performed. In addition, the convergence calculation is preferably a convergence calculation by an algebraic equation numerical calculation method.

  In order to achieve the above object, a feature of the thermoelectric equipment operation method according to the present invention is a thermoelectric equipment operation method for operating a thermoelectric equipment using the thermoelectric equipment simulation system described above, The solar-related device includes the solar power generation device, the thermoelectric device includes a power generation system device, and the calculation unit adjusts the fluctuation of the generated power of the solar power generation device and the load factor of the power generation system device. This is to reflect the amount of power of the thermoelectric device including the power generation system device.

  In order to achieve the above object, another feature of the thermoelectric equipment operating method according to the present invention is a thermoelectric equipment operating method for operating a thermoelectric equipment using the thermoelectric equipment simulation system described above. The solar-related device includes the solar heat collecting device, the thermoelectric device includes a solar hot water charging type absorption refrigerator and / or a solar hot water heat exchanger, and the computing unit collects the amount of heat collected by the solar heat collecting device. By adjusting the amount of combustion of the solar hot water input type absorption refrigerator and / or adjusting the amount of hot water and / or cold water by other thermoelectric devices, the solar hot water input type absorption refrigerator and / or It is to be reflected in the production amount of hot water and / or cold water of the thermoelectric device including the solar hot water heat exchanger.

  According to the features of the thermoelectric equipment simulation system and the thermoelectric equipment operating method according to the present invention, it has become possible to rationally integrate solar related equipment and other thermoelectric equipment by adjusting the load factor.

  As a premise, the simulation of solar-related equipment has become more accurate, and the introduction evaluation of these equipment, the preliminary evaluation of the installation, and the simulation of efficient installation construction can be performed.

  Other objects, configurations, and effects of the present invention will become apparent from the following embodiments of the present invention.

It is a general system figure of the thermoelectric equipment used as the object of the simulation system concerning the present invention. It is a block diagram of the thermoelectric equipment which concerns on 1st embodiment of this invention. It is a block diagram of the thermoelectric equipment which concerns on 2nd embodiment of this invention. It is a business data flow figure of the simulation system concerning the present invention. It is a hardware block diagram of the simulation system which concerns on this invention. It is a software block diagram of the simulation system according to the present invention. It is a flowchart which shows the setting procedure of each setting part. It is a figure which shows an example of thermoelectric load data. It is a partial load characteristic graph of the power generation efficiency in 15 degreeC of the equipment performance data of a gas turbine cogeneration, and a heat recovery rate. It is a schematic diagram explaining switching selection of electric power load. It is a figure which shows the setting of the driving | running condition of a daytime electric power generation and a boiler. It is a figure which shows the whole general logic flow. It is a general logic flow diagram of cold water and hot water energy balance. FIG. 2 is a general logic flow diagram of low pressure steam energy balance. It is a general logic flow figure of gas engine exhaust warm water energy balance. It is a general logic flow figure of hot water supply energy balance and electric power energy balance. It is a graph which shows an example of the electric power balance classified by August time zone at the time of gas turbine load 100% operation. It is the figure equivalent to FIG. 9a which shows the convergence calculation result with no reverse power and surplus steam. It is a graph which shows an example of the steam balance according to August time zone at the time of gas turbine load 100% operation. FIG. 9c is a diagram corresponding to FIG. 9c showing the result of convergence calculation assuming that there is no reverse power and surplus steam. It is a figure which shows the calculation flow of the solar radiation amount of a slope. It is a figure which shows the calculation flow of the electric power generation amount by a solar power generation device. It is a figure which shows the calculation flow of the amount of heat collection by a solar heat collecting device. It is a figure which shows the equipment performance data of a solar gene link, (a) is a heat recovery rate, (b) is a fuel consumption rate, (c) is a graph of solar hot water useable temperature. It is a figure explaining cold water generation | occurrence | production in a solar gene link. It is a partial load characteristic graph of a solar gene link. It is a block diagram which shows the relationship between a gas engine, a warm water absorption refrigerator, and another cold water system apparatus. It is a figure which shows the relationship between the amount of cold water manufacture of each chilled water type apparatus shown in FIG. 14, and a load factor.

Next, an embodiment of the present invention will be described with reference to FIGS.
FIG. 1a illustrates a general system diagram of a thermoelectric facility that is an object of the present invention. The thermoelectric facility M is composed of a plurality of thermoelectric devices. The thermoelectric facility M illustrated in the figure includes steam R (high pressure steam R1 and low pressure steam R2), fossil fuel and other fuels (hereinafter simply referred to as “fuel”) R3, electric power R4, as shown in Table 1a below. Cold water R5 and hot water R6 are supplied, steam S (high-pressure steam S1 and low-pressure steam S2), cold water S3, 4, hot water S5, 6, hot water supply S7, electric power S8 are manufactured and used facilities (buildings, factories, district heating and cooling, etc.) To be supplied.

  The thermoelectric devices are roughly the power generation system device M100, the boiler system device M200, the chilled water system device M300, the hot water system device M400, the low chilled water system device M500, the hot water supply system device M600, the cooling tower system device M700 (group cooling tower), and the heat storage system. The devices M800, the pump system device M900, and the solar-related device M1000 are classified according to the system, and the above-described thermoelectric equipment is constructed by appropriately combining them. Thermoelectric devices included in each system M100 to 1000 are listed in, for example, Table 1b. In addition, Table 1b is only an example, for example, a low chilled water type electric turbo chiller or a low chilled water type electric heat pump may be provided as the low chilled water type device so that the low chilled water is supplied. Further, GENELINK (registered trademark) is an exhaust hot water charging type absorption refrigerator that performs cooling by effectively using exhaust hot water of 100 ° C. or less generated from gas cogeneration (gas engine, fuel cell). The solar-related device M1000 includes a solar power generation device M1100 that supplies electric power R4 to other thermoelectric devices, and a solar heat collecting device M1200 that supplies solar hot water R7 to devices using solar hot water as other thermoelectric devices. Examples of the solar hot water use device that receives the supply of the solar hot water R7 include a solar gene link (solar hot water charging type absorption refrigerator) and / or a solar hot water heat exchanger. Moreover, in this specification, heat source equipment means what remove | excluded electric power generation system equipment and photovoltaic power generation equipment from thermoelectric equipment.

  Here, the simulation system 1 is configured as shown in FIG. 2 a, and a plurality of user terminals 2 and an administrator terminal 3 are connected to the DB server 4 through the network 5. The hardware configuration of the user terminal 2 and the administrator terminal 3 is configured as shown in FIG. 2b and Table 1c. The hardware of each terminal generally includes a user interface 6, a CPU 7, and the like, and performs processing by operating data and programs 7x to 7z.

  The user interface 6 includes a monitor 6a, a keyboard 6b, and a mouse 6c, and is used by the user to operate buttons and input fields on a display screen described later. The user interface 6 is connected to the CPU 7, the temporary storage memory 7b, the HDD 7c, the network adapter 7d and the like through a bus 7a such as a data bus and an address bus. The CPU 7, the temporary storage memory 7b, the HDD 7c, and the like form a calculation unit 7p in cooperation with each other, and operate the data, application program, and the like.

  As shown in FIG. 2a, the database group 100 of the DB server 4 (hereinafter, “database” is abbreviated as “DB”) includes a power charge DB 101, an environmental load DB 102, and a device performance DB 103. In the power charge etc. DB 101, information related to the price of supplied energy such as a power charge is stored and stored. The environmental load DB 102 stores environmental load data (unit environmental load) created from various published data. In addition, the equipment performance DB 103 includes the equipment partial load characteristics, changes in equipment efficiency due to the outside air temperature and wet bulb temperature, internal power consumption, and restrictions on equipment built into the system, etc. , Stored by ability, and incorporated into the system of FIG.

  The user of this system accesses the DB server 4 through the network 5 such as TCP / IP, and reads and reads the power charge data file 101a, the environmental load data file 102a, and the manufacturer / equipment data template file 103a from each DB 101-103. Save as data 100a. By reading these data, it is possible to use data that is not described in the catalog, data of updated devices, data of new models, and the like.

  The power charge data and the environmental load data can be manually changed to the evaluation data unique to each user to perform a simulation, and are stored in the case file 106. As described above, conditions and parameters set in each setting unit described later can be recorded as a case file in the HDD 7c which is an electronic recording medium. The electronic recording medium is not limited to the HDD 7c, and various removable disks such as a magnetic disk, an optical disk, and a RAM can be used as the electronic recording medium.

  In the calculation unit 7p, a processing application 7y and a load creation application 7z are operated. The load creation application 7 z creates a thermoelectric load according to the situation and stores it in the thermoelectric load file 104. Then, these can be operated, and the simulation data that has been corrected to the data matched to the energy system evaluated by the user and stored can be stored as the case file 106 and the thermoelectric load file 104. For evaluation, output can be performed as an output graph, a form display 155, a simple print 156, and a file (table format) 157. The user can read the case file 106 at any time and evaluate the energy saving effect and the like. Further, any one of the thermoelectric devices other than the solar-related device of the energy system includes partial load characteristics, and the solar-related device has an output characteristic that varies depending on a slope solar radiation amount and an outside air temperature, which will be described later. Convergence calculation is performed by changing the load factor of the thermoelectric device so that the production amount of any of the combined total energy becomes the target value set by the energy load setting unit according to the characteristics. Moreover, the calculating part 7p is provided with the calculation determination part 7q which determines the number of thermoelectric devices and changes the number so that convergence calculation may be completed.

  For example, if an excessive number or an inappropriate type of thermoelectric device is selected in the operating condition setting unit 40, it can be assumed that the convergence calculation does not converge to the target value. In such a case, in the heat source device, only the number corresponding to the heat load is started in accordance with the set priority order, and the calculation unit 7p performs convergence calculation again based on the number. The power generation system equipment can be processed by purchasing electricity and is configured not to automatically start up in order to reduce the load of convergence calculation.

  On the other hand, if it is determined that the convergence is not completed without reaching the target value (for example, target chilled water load) and the convergence calculation is not completed, the calculation determination unit 7q is set. Increase one heat source device with the lowest priority and perform convergence calculation again. Repeat until this convergence calculation is complete, and increase the number to match the load. Here, the heat source device with the lowest priority is considered to be less important in the system configuration of the normal thermoelectric facility, and the influence on the entire thermoelectric facility is small. In addition, since only the number of heat source devices having the lowest priority is increased, recalculation can be easily performed. Thereby, it is possible to perform a simulation quickly without greatly affecting the entire thermoelectric facility. Further, the calculation determination unit 7q displays the increased type of the heat source device and the increased operation time (operating condition) of the heat source device on the screen together with the increased number of units. Thereby, the user can set the optimal operation plan and construct the system of the thermoelectric facility with reference to the simulation result.

  FIG. 1b shows a block flow of the thermoelectric equipment M in the present embodiment. The thermoelectric equipment M is configured by a gas turbine cogeneration M120, a low pressure boiler M220, an absorption refrigeration machine M310, a turbo chiller M350, a solar generator M381, a solar power generation device M1100, and a solar heat collection device M1200. The gas turbine cogeneration M120 includes an exhaust heat boiler M120a. The photovoltaic power generation device M1100 (solar photovoltaic power generation unit) includes a photovoltaic power generation module (array), a power conditioner and a connection box (not shown). A solar heat collecting apparatus M1200 (solar heat collecting system) includes a heat collector main body M1201, a solar hot water tank M1202, a solar hot water pump (not shown), a radiator, and piping connecting them. In addition, the heat collector (one or more panels), the pump, and the radiator constitute one unit, and one or more of the units are connected to the solar hot water use device via one hot water tank, and one solar heat collector. Configure the thermal system.

  As shown in FIG. 2c, the software configuration of the simulation system 1 according to the present invention is roughly the energy load setting unit 10, the basic condition setting unit 20, the system construction setting unit 30, the operation condition setting unit 40, and the operation result output unit 50. , A case file creation unit 60 and a display control unit 70. The DB group 100 is the same as that in FIG.

  The basic condition setting unit 20 includes a utility cost setting unit 21, a process condition setting unit 22, an environmental load setting unit 23, and a temperature data setting unit 24. The utility cost setting unit 21 includes a power cost setting unit 21a and a fuel cost setting unit 21b.

Here, FIG. 3 shows a setting procedure of each setting unit of the simulation system.
In this setting procedure, as shown in FIGS. 2c and 3, first, the energy load is set by the energy load setting unit 10 (S201). Next, the process condition of the heat medium is set by the process condition setting unit 22 (S202). Then, the environmental load data and the utility cost are set by reading from the environmental load DB 102 and the power charge DB 101 by the environmental load setting unit 23 and the utility cost setting unit 21 (S203, 204). After setting these, the system construction setting unit 30 selects the thermoelectric device and reads the device performance data to construct the thermoelectric facility (S206, 207), and the operation condition setting unit 40 sets the operation condition in the constructed thermoelectric facility. (S208). The construction status of the thermoelectric equipment is appropriately displayed on the flowchart via the display control unit 70. The conditions set in the above steps can be appropriately stored as individual data 100b such as the user device template file 103b, the thermoelectric load file 104, and the case file 106 by the case file etc. creation unit 60. In addition, although various settings of the DB group 100 are set in each step described above, various settings can be performed using the stored individual data 100b.

  Then, based on these setting conditions, the time unit and / or yearly simulation is executed by the computing unit 7p (S209). The result is output by the operation result output unit 50 in the form of a graph or a form as shown in FIG. 9 (S210). It is also possible to perform simulation repeatedly by changing the conditions. In such a case, operation priority, operation availability and minimum power purchase, change of electric power, heat main, etc. (S211) are performed under operating conditions, and addition, change, deletion, etc. of equipment for comparative study (S212) are system Do it in the build settings. Then, the simulation is executed again and output (S209, 210).

Here, a general balance calculation processing procedure in the simulation will be described with reference to FIG. Hereinafter, the energy balance step is abbreviated as “EB”.
As shown in the figure, the general processing procedure is as follows: cold water EB (S01), hot water EB (S02), low pressure steam EB (S03), high pressure steam EB (S04), gas engine exhaust hot water EB (S05), hot water supply EB. (S06) and electric power EB (S07). In this way, the total composite energy is sequentially calculated based on the setting conditions in the above steps in the order of steam energy before power energy and other energy before this steam energy.

  In the energy load setting (S201), the energy load setting unit 10 sets the amount of composite energy required in the use facility for each time zone for each month, each day, and each pattern. For example, as shown in FIG. 4, chilled water load, steam load, power load, chilled water supply temperature, and chilled water return temperature are set as the outside air temperature, wet bulb temperature, and thermoelectric load data. The outside air temperature is related to the intake temperature of the gas turbine, and the intake air temperature is a parameter of the gas turbine power generation amount. In the device performance data described later, the intake air temperature is defined as the outside air temperature + the arbitrary temperature, for example, + 2 ° C.

  The wet bulb temperature affects the cooling water temperature, becomes a variable of the performance (COP) of the absorption chiller and the turbo chiller, and is related to power consumption and fossil fuel consumption. In the device performance data described later, the cooling water temperature is defined as a wet bulb temperature + an arbitrary temperature, for example, + 5 ° C. The outside air temperature and the wet bulb temperature are set using data downloaded from the HP of the Japan Meteorological Agency, for example. In addition to the outside air temperature and wet bulb temperature, river water temperature, sea water temperature, sewage / well water temperature, etc. can be set monthly for each time zone.

  Thermoelectric load data such as chilled water load, low chilled water load, hot water load, low pressure steam, high pressure steam, hot water supply load, electric power load, etc., if the thermoelectric equipment is already in operation, is collected at the time of operation. Can be set using. In addition, this energy load setting can be set with 24 hours of data for 12 months up to a maximum of eight patterns of each month, and further, the load on the summer design day and the winter design day can be set. Here, the summer design date is a maximum load of cold heat that is predicted, for example, a load that is increased by 15% in August, or the like. Similarly, the winter design day is the maximum heat load that is predicted, for example, a 15% increase in February. Further, the supply temperature and return temperature of cold water, low cold water, and hot water can be set in the same manner.

  Next, in the process condition setting (S202), the process condition setting unit 22 sets process conditions of the heat medium such as basic conditions, fuel data, types of recovered steam such as an electric system / steam system and a gas turbine. The process condition setting unit 22 selects whether to use the temperature difference of the heat medium, the outside air temperature, and the wet bulb temperature of the energy load setting unit 10, and each of the supply temperature and the return temperature of the cold water, the hot water, and the low cold water. Set the target temperature difference and minimum bypass flow rate. Moreover, the conditions of high pressure and low pressure steam (pressure MpaG, steam enthalpy kJ / kg, enthalpy of return water kJ / kg, steam recovery rate%) are set.

  Here, in the steam enthalpy calculation processing procedure, first, the steam pressure is set, and when either saturated steam or superheated steam is selected as the steam type, it is determined whether the steam pressure is superheated steam or saturated steam. . In the case of saturated steam, the saturated steam enthalpy is calculated based on the set pressure, and the calculation result is input as the steam enthalpy. On the other hand, in the case of superheated steam, when the superheated steam temperature is input, the superheated steam enthalpy is calculated, and the calculation result is input as the steam enthalpy. In addition, each pressure of a high pressure steam and a low pressure steam can be set separately, and all the calculation procedures are the same.

  For example, if the target temperature difference of cold water is set to 5 ° C., the minimum bypass amount is set to 0, and the pressure of the low pressure (saturated) steam is set to 0.785 MpaG which is the steam condition of the absorption refrigerator, the enthalpy of the low pressure (saturated) steam 2770.9 kJ / kg which is the calculation result of is input.

  In the process conditions of fuel, the calorific value and specific gravity of gas, heavy oil, kerosene and other oils are set. For the electric system and steam system, set the power load of thermoelectric load data, breakdown of low-pressure steam load, supply destination of generated power, gas turbine and additional gas turbine, gas engine recovery steam type, and power recovery by steam decompression To do.

  The breakdown of the power load of the thermoelectric load data selects whether the power load set by the energy load setting unit 10 is a power load supplied to other than the thermoelectric facility or a power load including the power of the thermoelectric facility. By setting the load other than the thermoelectric facility, the power load set by the energy load setting unit 10 is set as the power supplied to the utilization facility.

  Similarly, the breakdown of the low-pressure steam load in the thermoelectric load data selects whether the low-pressure steam load is a steam load supplied to other than the thermoelectric equipment or a steam load generated in the thermoelectric equipment. In the case of supply only to other than thermoelectric equipment, the set steam load is the steam supplied to the use equipment. Also, when selecting the total steam load (steam load from the steam generator), it is the case where steam is supplied to the equipment used and steam is used in the thermoelectric equipment, and is set as the total flow generated from the steam generator Is done. The above-described electric power load and steam load are used for the simulation, and are output as a result as a result.

  Further, the power recovery by steam decompression is set for a power recovery facility that can recover power when surplus is generated in the high-pressure steam and the pressure is reduced to the low-pressure steam. In such a case, the amount of high-pressure steam and the enthalpy of exhaust steam necessary for maximum power generation and partial load power generation are set. In addition, in the thermoelectric equipment M which concerns on this embodiment, since there is no pressure reduction from a high pressure steam to a low pressure steam, it has not set.

  Each recovered steam type selects whether the steam generated from the power generation system equipment (gas turbine, additional gas turbine, gas engine) is low-pressure steam or high-pressure steam. For example, when “low pressure steam” is set, it is specified that the steam supply destination from the exhaust heat boiler M120a of the gas turbine M120 is supplied to the low pressure steam side.

  Furthermore, the process condition setting unit 22 sets a horizontal solar radiation amount as a process condition of the solar-related device. The horizontal plane solar radiation data includes common data including latitude, longitude, altitude and the number of days from the first day of the installation of the equipment, data time, temperature, horizontal solar radiation, and horizontal plane solar radiation directly achieved. , Horizontal plane total solar radiation sky scattering components, and hourly data of wind speed. Further, in cold regions, snow cover data may be included. As the hourly data, for example, solar radiation data downloaded from a solar radiation database published by a public institution or the like is used. In addition, the inclination angle (for example, 0 degrees for the horizontal) and the direction (for example, 0 degrees for true south and positive for the west direction, -90 to 90 degrees) of the solar power generation module (or solar heat collector body) are also set. Since the azimuth and the tilt angle can be arbitrarily set, it is possible to easily simulate the azimuth and the tilt angle as parameters. For example, the optimum azimuth and tilt angle can be examined at the same point.

  Then, based on the above-mentioned horizontal plane solar radiation data, inclination angle and direction, the slope solar radiation amount directly achieved, the slope solar radiation sky scattering component and the slope solar radiation ground reflection component are respectively obtained, and these are added together to calculate the slope solar radiation amount. Desired. The details of the calculation are shown in the following equations 3 to 6 and FIG. In this embodiment, the expression of the Perez model is used to calculate the slope solar radiation sky scattering component, but the present invention is not limited to this. Further, the central time of the time zone (for example, 9:30 from 19:00 to 10:00) is used for the solar hour angle. The amount of solar radiation on the slope is data common to solar power generation equipment and solar heat collection equipment. “NEDO” described below is an abbreviation for the New Energy and Industrial Technology Development Organization. “METPV-11” is the name of NEDO's annual solar radiation database.

  The power supply destination is set to determine where to supply and use the electricity generated by the power generation system equipment, to bear the power of the thermoelectric equipment and the use equipment, to bear the power of the thermoelectric equipment only, and to the use equipment only Choose from one of the burdens of power. For example, when “the power burden of the thermoelectric facility and the customer (utilization facility)” is selected, electric power is supplied to both the utilization facility and the thermoelectric facility. Electricity is generated with respect to the total power, and the shortage is set to be purchased.

  When “Supply to thermoelectric equipment” is selected as the power supply destination, the power is balanced so that the power generation equipment generates power according to the amount of power consumed by the thermoelectric equipment. In addition, if “only the consumer” is selected, the power is balanced so that the power generation equipment generates power according to the amount of power other than the heat source. In other words, the amount of power generated by the power generation system device varies depending on the determination of the supply destination of the generated power.

  As shown in FIG. 6, when the amount of power CE1 consumed by the thermoelectric facility M, the amount of power CE2 consumed by the utilization facility F, the power generation amount GEa (GEa1 to GEa1 to 3) of the power generation system device M100 and the solar power generation device M1100 When power is used only by the thermoelectric equipment M (for example, supply to the turbo chiller M350), convergence calculation is performed so that no reverse tide occurs if GEa1> CE1. When electric power is used in both the thermoelectric facility M and the utilization facility F, convergence calculation is performed so as not to reverse tide if GEa2> CE1 + CE2. In the case of using only the utilization facility F, convergence calculation is performed so as not to reverse tide if GEa3> CE2. That is, the amount of power to be converged is different. This also applies to steam.

  As described above, regarding the power load, the energy evaluation is performed by selecting the power load by using only the power load used in the use facility or by selecting the power load used in both the use facility and the thermoelectric facility. In addition, the steam load can be switched and selected by selecting whether it is only the steam load used in the use facility or the steam load used in both the use facility and the thermoelectric facility. can do.

  In the thermoelectric facility M of FIG. 1b, the basic conditions are set to the target temperature difference of cold water, the low-pressure steam pressure, and the enthalpy thereof. The setting of the fuel data is a setting of the lower gas calorific value and specific gravity. The condition setting of the electric system / steam system is a setting in which the breakdown of the electric power load is set only to a load (utilization equipment) other than the thermoelectric equipment, and the breakdown of the steam load is used in other than the thermoelectric equipment (use equipment). The type of recovered steam such as gas turbine is set to low pressure steam.

In the environmental load data setting (S203), the environmental load data setting unit 23 sets the environmental load data. Specifically, the power consumption, fossil fuel, and other fuel consumptions obtained under the conditions set by the energy load setting unit 10, the basic condition setting unit 20, the system construction setting unit 30, and the operation condition setting unit 40 On the other hand, the environmental load data (unit environmental load) is multiplied to set the environmental load (primary energy, CO ₂ , NOx, SOx). The data to be set includes CO ₂ , NOx, SOx emission basic units and crude oil equivalent values for each of electric power, gas, kerosene, heavy oil, and other oils. The primary energy conversion value is further set for the electric power. Moreover, electric power can be set for every time slot | zone like daytime and nighttime, for example.

  Next, in the utility cost setting (S204), the power cost setting unit 21a and the fuel cost setting unit 21b set the power and the fuel cost.

  In the system construction setting (S206), the system construction setting unit 30 constructs the system configuration of the thermoelectric equipment M. This system construction setting unit 30 arbitrarily sets a plurality of thermoelectric devices of the same model, models with different capabilities, models with different energy for operation, or models with different manufacturers, and sets each according to the operating conditions of the operating condition setting unit 40. It is possible to operate.

  Each performance data of the thermoelectric device is stored in the device performance DB 103 of the DB group 100, and is set by reading this performance data in the device data reading (S207). The device performance DB 103 is sorted and stored by device, manufacturer, model number, fuel, capacity, and performance for each device system described above. The performance data is read by selecting these classifications via the system construction setting unit 30 and the display control unit 70.

  The display control unit 70 displays a flow diagram as shown in FIG. 1a and constructs a system of thermoelectric equipment on the flow diagram. This flow chart shows a plurality of types of thermoelectric equipment that can constitute the thermoelectric equipment M, supply energy that is supplied to the thermoelectric equipment M and received by each thermoelectric equipment, and composite total energy that is manufactured by the thermoelectric equipment M and supplied to the use equipment Is previously connected by a connection line.

  In these thermoelectric devices, energy to be received and energy to be manufactured and supplied are specified depending on the type of the thermoelectric device. Therefore, a thermoelectric facility in which each thermoelectric device and energy received and / or manufactured by the thermoelectric device are connected in association with a connection line can be created in advance as a flow diagram. Connection lines are allocated for each energy received and / or manufactured.

  By selecting a thermoelectric device on the flow chart as described above, the set thermoelectric device and energy are displayed in an identifiable manner, so that the relationship between the thermoelectric device and energy can be visually understood. Therefore, it is possible to construct a system of the thermoelectric equipment M without being an advanced expert. In addition, the solid line of FIG. 1b shows the internal electric power in each apparatus M120, M220, M310, M381, M1201, etc. In addition, the output characteristics of the solar-related equipment vary depending on the amount of solar radiation and the outside air temperature based on the horizontal solar radiation data, and the electric power produced and the amount of solar hot water heat vary. The fluctuations in the internal power and the output characteristics of the solar-related devices contribute to the change in the energy balance, and the energy balance is maintained by the convergence calculation. The flow diagrams shown in FIGS. 1a and 1b are merely examples, and can be set as appropriate. A plurality of types of flow diagrams may be created and stored in advance.

  The thermoelectric equipment that constitutes the thermoelectric equipment is classified by series and organized by equipment type, so at least as a power generation system, boiler system, cold water system, hot water system, low chilled water system, hot water supply system, and solar power related system By selecting equipment classified separately and reading equipment data, it is regarded as equipment selected for that system, and depending on the function of each system, between each thermoelectric device and between each thermoelectric device and the combined total energy system and It can be set in association with the supply energy. As a result, each device is properly connected when it is read, and can play a role of sharing the load of the balance result of the series. However, in the selection of the device, only the thermoelectric facility is configured, and the device is operated according to the priority order set by the operation condition setting unit 40.

Here, the device performance data of the thermoelectric device read from the device performance DB 103 as described above will be described.
The equipment performance data of the gas turbine cogeneration M120 includes the operating load ratio%, power generation efficiency%, and exhaust heat boiler heat recovery percentage% for each gas turbine intake air temperature (for example, 0 ° C, 15 ° C, 30 ° C) as shown in Table 2. Includes relationships. Based on this relationship, the performance of the time is determined by the outside air temperature set in the energy load setting unit 10. By setting as shown in Table 2, the power generation efficiency and heat recovery rate are determined at an intake air temperature of 15 ° C. and a load factor as illustrated in FIG. 5 by a multivariate regression equation model with the explanatory variables as intake air temperature and load factor. Is done. The intake air temperature can be changed, and the performance curve for each temperature can be displayed in the same graph as in FIG. 5 by changing the intake air temperature. As described above, for the temperature performance other than the set temperature, the power generation efficiency and the heat recovery rate are determined based on the intake air temperature and the load factor by this regression equation.

  In addition, settings related to output restriction, auxiliary power consumption, and startup loss are made. The output limit setting sets the operation lower limit, the upper limit, the intake air temperature at the start of the limit, the value of the ratio% to the rated output, and whether the output limit approximation is linear approximation or quadratic curve approximation. The power consumption of the auxiliary machine sets the output% of the rated load and partial load (at 50% load operation). Also, the minimum load factor that must stop the gas turbine is set, and the relationship between the intake air temperature and the outside air temperature is set, for example, intake air temperature = outside air temperature + 2 ° C., and water / steam injection for reducing NOx generated from the gas turbine. The gas to gas weight ratio% is set. Set how many minutes the energy loss at startup (equivalent to rated operation (15 ° C load factor 100%)) corresponds.

  Furthermore, the blowdown amount from the exhaust heat boiler used for calculating the capacity / number / fuel of the main engine, the NOx value, the capacity per gas turbine and the water consumption is set. In addition, it is set where the heat exhausted from the gas turbine is exhausted. Since the power generation output decreases as the outside air temperature increases, intake air cooling can be set. In addition, in the thermoelectric installation shown in FIG. 1b, since it does not employ | adopt intake air cooling, it has not set.

  The equipment performance data of the gas turbine cogeneration M120 is read by the system construction setting unit 30 by selecting the power generation system, capability, manufacturer, etc. from the equipment performance DB 103. Data is set by reading this data. In this embodiment, the connection destination of the steam generated from the cogeneration exhaust heat boiler is supplied to the low-pressure steam set by the type of the recovered steam of the gas turbine and the additional cooking gas turbine in the process condition setting unit 22. The generated low pressure steam pressure and enthalpy are generated at the low pressure steam pressure of 0.785 MpaG and the low pressure steam enthalpy of 2770.9 kJ / kg set by the process condition setting unit 22.

  The equipment performance data of the low pressure boiler M220 sets the thermal efficiency% at a plurality of arbitrary load factor% of the low pressure boiler. Similarly to the above, the blowdown amount, the capacity / number / fuel of the main engine, the NOx value, the power consumption of the auxiliary machine, and the energy loss at startup are set. Similarly to the above, the performance data of the low-pressure boiler M220 device is set by reading the data. The connection destination of the steam generated from the low pressure boiler and the pressure and enthalpy of the low pressure steam are set under the conditions set in the process condition setting unit 22 as described above.

  The equipment performance data of the absorption chiller M310 sets the COP during the cold water mode operation at an arbitrary plurality of partial load factors. By setting these, similarly to the above regression equation, the relationship between the COP in each mode and the changing COP% is set using the cooling water temperature as a parameter. In addition, design temperature differences between cold water and cooling water are set. The cooling water temperature can be set to, for example, a wet bulb temperature + 5 ° C. by assigning an arbitrary temperature to the outside air wet bulb temperature, river water, and seawater temperature data, and the lower limit value at which the device can be operated is also set. Further, the CPO and outlet temperature in each mode may be added to the parameters. The same applies to the following devices.

  The relationship between the cold water mode COP and the COP% changing with the cooling water temperature as a parameter and the relationship with the cooling tower capacity with the wet bulb temperature as a parameter are similarly obtained by the above regression equation. In addition, set the number of main engines, design capacity and actual capacity (capacity in case of deterioration over time), capacity and power consumption per fan of the attached cooling tower, cooling tower capacity, and supplemental water concentration ratio of the attached cooling tower. . The relationship between the outside air wet bulb temperature of the attached cooling tower and the cooling capacity is set using the above regression equation.

  Further, the power consumption of the pump is set. The power consumption of the pump sets the heads of the cold water pump and the cooling water pump. Since the head varies depending on the equipment, enter it manually. Further, the flow rate control method of the pump is set to a constant flow rate, for example. Furthermore, the power consumption and the energy loss at the time of starting of the auxiliary machine of an absorption refrigerator are set similarly to the above.

  Here, in the pump efficiency calculation processing procedure, when each of the heads is set, the pump efficiency and the like are automatically calculated and set. In addition, although pump efficiency is demonstrated to an example, motor efficiency is calculated similarly. In this example, the specific gravity is 1 because cold water and cooling water are also water.

  First, calculate the pump capacity. It is calculated by internal calculation from the amount of heat processed by the thermoelectric machine and the temperature difference. The pump efficiency is obtained using the obtained pump capacity. The A efficiency of JIS B8313 is approximated by a logarithmic cubic expression of the pump capacity. Next, the motor shaft power is obtained, and the motor margin is calculated based on the pump shaft power. The pump head refers to the value entered above. The required motor power is calculated from the obtained motor margin ratio and motor shaft power. The motor efficiency is calculated based on the calculated required motor power. Then, the motor and pump total efficiency is calculated from the obtained motor efficiency and pump efficiency, and the calculation result is set as the pump efficiency. Further, the pump capacity, pump shaft power, and required motor power obtained in the above steps are stored as internal data.

  Furthermore, the place which exhausts the exhaust heat which generate | occur | produces from an absorption refrigerator is set. It is possible to select between exhaust heat from the attached cooling tower or exhaust heat from the group cooling tower. Also, instead of exhaust heat from these cooling towers, direct waste heat from river water / seawater and indirect waste heat from river water / seawater (via a heat exchanger), which are the external water W shown in FIG. It is also possible to select. The external use water W includes river water / seawater, sewage, well water, sewage treated water, and the like. When river water / seawater is selected, heat is exhausted using the temperature data set by the temperature data setting unit 24 of the basic condition setting unit 20. In the case of direct heat exhaustion to seawater, seawater is selected and exhausted to seawater and radiated to the sea under the described temperature conditions. In the case of indirect exhaust heat, the water pump M960 of FIG. 1a is added to the thermoelectric equipment to exchange heat of the exhaust heat and similarly radiated to the sea.

  When the thermoelectric equipment is provided with a heat pump such as an air-cooled heat pump or an electric heat pump, setting for heat collection is also possible. Air-cooled heat pumps are devices that produce hot water (heat) from the outside air temperature (air). The electric heat pump is a device that can also extract hot water (heat) from the cooling tower or the external use water W. Since hot water is used for heating and has a heavy load in winter, the COP of an air-cooled heat pump that collects heat from air with a low outside air temperature is small and the efficiency is low. On the other hand, since the external use water W is higher than the outside air temperature even in winter, it is possible to efficiently produce heat with a high COP by collecting heat from the external use water W with an electric heat pump. For example, the heat collection source of the electric heat pump is set by selecting river water / sea water. The performance data of the absorption refrigerator M310 is also set by reading the data in the same manner as described above. The supply of steam, the pressure and enthalpy of low-pressure steam are the same as described above.

  The equipment performance data of the turbo chiller M350 sets the capacity / number of main machines. Further, the partial load factor and the COP during the cold water operation are set, and the relationship between the cold water COP and the COP% that changes with the cooling water temperature as a parameter is set. Set the design cold water temperature difference, cooling water temperature difference and cooling water temperature. These settings are the same as those of the absorption refrigerator. Similarly, the relationship between the COP changing with the cold water COP and the load factor as a parameter and the relationship between the COP% changing with the cold water COP and the cooling water temperature as a parameter are also obtained by a regression equation. The pump efficiency and the waste heat destination are also set in the same manner as the absorption refrigerator, and are set by reading the device data.

  The device performance data of the photovoltaic power generation device M1100 is the type of solar cell panel (for example, whether it is crystalline or amorphous), total rated output per unit, solar radiation intensity under standard test conditions, and power extraction Set the minimum solar radiation, module conversion efficiency, power conditioner effective efficiency and power consumption. These data are stored in the device DB 103 and set by reading. Also, the cardinal number and array installation method (mounting base, roofing, roof-integrated type, etc.) are set. Then, the effective generated power is obtained based on these settings and the slope solar radiation amount (set slope) based on the horizontal plane solar radiation data of the process condition setting unit 22, the outside air temperature, and the wind speed. Thus, the photovoltaic power generation device has output characteristics that vary depending on the amount of solar radiation on the slope, the outside air temperature, and the wind speed. The details of the calculation are shown in Equation 1 above, Equation 7 below, and FIG. 10b.

The device performance data of the solar heat collecting device M1200 includes the characteristics of the heat collector main body M1201 (whether the heat collection efficiency is a JIS primary equation, a JIS secondary equation, or a European standard EN secondary equation, and a coefficient setting). Effective heat collection area and capacity of the heater, power consumption of the solar hot water pump (rated capacity (m ³ / h), head (m), efficiency (%)), internal volume of the solar hot water primary piping, power consumption of the radiator The capacity of the hot water storage tank M1202, the solar hot water density, the solar hot water specific heat, the solar hot water temperature upper limit, and the heat dissipation loss are set. In addition, the solar hot water temperature at the start of operation and the night fall temperature are also set.

  Here, the solar hot water is balanced between the amount of heat collected by the solar heat collecting device (heat collecting system) and the amount of heat recovered by the device using solar hot water. From the above equation 2, the amount of heat collected by the collector is obtained by first calculating the outlet temperature of the collector according to either A) JIS primary equation, B) JIS secondary equation or C) EN equation in the following equation 8. And the temperature at the inlet of the heat collector is calculated by multiplying the circulation flow rate (the above formula 2). The average temperature of the solar hot water is used as the inlet temperature is constant in the time zone. The change in the temperature of the solar hot water is calculated from the amount of heat collected, the amount of heat recovered, the heat dissipation loss, and the amount of solar hot water retained. This solar hot water possession amount is the sum of the hot water storage tank capacity, the collector internal capacity, the solar hot water primary pipe internal volume (heat collection system side), and the solar hot water secondary pipe internal volume (solar hot water utilization equipment side). Even if the solar heat collecting device starts collecting heat (heat storage) after dawn, the temperature of the entire heat collecting system drops (heat dissipation loss) at night, and the collected heat is not immediately used for heat recovery. Of course, the amount of heat collection also varies depending on the amount of solar radiation and the outside air temperature. Therefore, the amount of heat collected is adjusted by adjusting the production amount (heat amount) of cold water and hot water and the amount of combustion of fuel in solar hot water use equipment. The solar radiation amount is obtained by multiplying the solar radiation intensity by the heat collection area. As a result, the heat collection efficiency is obtained from the heat collection quantity, the heat collection surface solar radiation intensity, and the heat collection area. Details of the calculation are shown in the above equation 2, the following equations 8 to 10, and FIG. 10c.

  As shown in FIG. 1b, in this embodiment, a solar gene link M381 is used as a solar hot water utilizing device. Solar Genelink M381 is a gas-fired chiller / heater that collects solar hot water to reduce fuel consumption for cold water production. Since the temperature of solar hot water changes depending on the amount of solar radiation, it is a generic link designed to be able to recover heat even when the temperature of the solar hot water changes to, for example, about 60 ° C to 90 ° C. This solar gene link produces cold water by supplementing with combustion of fuel when solar hot water is insufficient or absent. Similarly, it is possible to produce hot water.

  The amount of solar heat recovered by Solar Genelink is determined by the load factor, cooling water temperature, and solar hot water temperature. In the examples of FIGS. 11A and 11B, cold water can be produced only with solar heat in a range where the load factor is lower than the point of Lc, and when it exceeds that, solar heat is also recovered while consuming fuel. The fuel consumption rate is 100% when solar heat is not recovered. In addition, solar heat recovery of Solar Genelink is possible only when the solar hot water temperature is higher than the available temperature. The available temperature refers to the lowest temperature of the solar hot water that cannot be recovered unless the solar hot water temperature is equal to or higher than the available temperature. And if the load factor of a solar gene link is determined, the amount of solar heat recovery will be determined from the solar hot water temperature and cooling water temperature in the time slot | zone. As shown in FIG. 6C, the available temperature of solar hot water is determined with respect to the load factor, and varies depending on the cooling water temperature.

  As shown in FIG. 12, when there is sufficient solar hot water available, Solar Genelink collects solar heat by that amount, and multiplies solar heat COP to determine the amount of cold water produced by solar heat. When the amount of chilled water produced by solar heat is not sufficient for the amount of chilled water produced by Solar Genelink, the amount of chilled water produced by the fuel is obtained by burning the fuel and multiplying the amount of heat generated by the fuel COP. In this way, the amount of fuel combustion is adjusted so that the amount of cold water produced by solar heat + the amount of cold water produced by fuel = the amount of cold water heat shared. By adjusting the fuel combustion amount, fluctuations in the heat collection amount of the solar heat collecting device can be absorbed.

  The device performance data of Solar Genelink M381 includes the relationship between the heat recovery amount and the load factor as shown in FIG. 13A, and the relationship between the fuel consumption rate and the load factor as shown in FIG. By making the settings as shown in Table 3, the amount of solar heat recovered and the fuel consumption rate are determined. Moreover, as shown in FIG.11 (c), the relationship between solar hot water useable temperature and a load factor is also included.

  In addition, each said device performance data can change performance etc. arbitrarily, and the system construction setting part 30 can give a comment, such as a change reason.

The operation condition setting unit 40 sets operation feasibility and / or operation priority for each thermoelectric device for each month, day, and time period in the operation condition setting (S208). The operation plan of the thermoelectric device is constructed by setting the operation conditions.
As shown in FIG. 7, a daytime operation plan for the power generation equipment and boiler equipment is set. In this setting screen, the daytime time (for example, from 8:00 to 22:00) is divided into two arbitrary time zones, and up to the sixth priority is arbitrarily set for each time zone according to the state of each load. . The figure is merely an example of setting, and the number of settable time zones and the priority order can be appropriately increased or decreased. For example, it is possible to divide from 8:00 to 22:00 into six arbitrary time zones and to set up to the eighth priority in each time zone. In addition, the operation method is selected and set between power load priority and heat load priority. In the figure, the operation of the low pressure boiler and the gas turbine cogeneration is set from 8 o'clock to 18 o'clock, and the operation of the power generation system equipment is given priority to the power load. From 18:00 to 22:00, the operation of the low-pressure boiler gas turbine cogeneration is set, and the operation method of the power load is selected for the operation of the power generation system equipment. The item for setting the minimum amount of electric power purchased in the daytime defines the minimum amount of electric power purchased from the electric power company, and is set to 0 KW in FIG.

  In addition, a load sharing method for power generation system devices that specifies operation control methods for a plurality of power generation system devices is selected and set. This figure shows an example in which “partial load only for the last machine” is set. “Last machine only partial load” is set when the power generation amount is adjusted by partial load operation of the device specified at the end of the operation priority. Also, “all GT / all GE same load operation” and “last model only uniform load” can be set. “All GT / all GE same load operation” is set when the power generation amount is adjusted by operating all the set generator gas turbines and gas engines at the same load. In addition, the setting of “Uniform load only for the last model” is that there are multiple devices with the last priority specified by multiple generators, and the power generation amount is adjusted by the multiple devices with the last priority. Set in case. As described above, when a plurality of power generation devices are set, various generator control methods can be considered. The night time (for example, from 22:00 to 8:00) can be set in the same manner as described above. Daytime and nighttime time zones can be freely changed, and daylight saving time can also be handled.

  Set operating conditions for cold and hot water equipment. For example, the daytime time (from 8 o'clock to 22:00) is divided into arbitrary four time zones, and the maximum priority is set for each time zone according to the load situation. Note that the number and priority of the set time zones can be appropriately increased or decreased as described above. In addition to the priority order, the outlet temperature of each device is also set. Low cold water system equipment can be set in the same way.

  As shown in FIG. 1b, when the solar power generation device M1100 is included in the thermoelectric equipment M, the operation condition setting unit 40 is forced to be regardless of the operation conditions (operation order) set by the user as shown in FIG. Prioritize solar power generation equipment over power generation equipment. This applies regardless of the date and time. Further, the solar heat collecting device is set to operate only during a time zone in which the amount of solar radiation on the slope that can collect heat is generated. Since the supply amount of solar energy cannot be adjusted, the electric power and / or solar hot water produced by the solar-related equipment is used effectively and prioritized over other priorities in order to absorb the fluctuation.

  Set the amount of incoming high-pressure steam, low-pressure steam, cold water, hot water, and electricity that can be used externally. Each received amount sets a plurality of arbitrary time zones, and sets the received amount in each time zone. For example, assuming that a maximum of 1 t / h of low-pressure steam is received from a day and night waste incineration facility, only the amount of steam necessary for the thermoelectric facility is accepted when the amount of low-pressure steam used by the thermoelectric facility is smaller than 1 t / h. On the other hand, if the amount of low-pressure steam used in the thermoelectric facility is greater than 1 t / h, the maximum low-pressure steam of 1 t / h is accepted and the shortage balances the low-pressure steam in the thermoelectric facility. The total amount of composite energy that can be manufactured by thermoelectric equipment and supplied to other equipment is set in the same manner. These set values are taken into consideration to balance supply energy and total composite energy. High pressure steam, cold water, hot water and electricity are all treated in the same way. Thereby, the operation plan of the thermoelectric equipment can be set by the operation condition setting unit 40 while referring to the energy load set by the energy load setting unit 10.

  In the thermoelectric equipment M shown in FIG. 1b, the equipment used in the daytime of the power generation boiler is a gas turbine and a low pressure boiler, and the power generation system equipment is automatically set as the priority equipment over the boiler. In addition, since solar power generation equipment generates power by the amount of solar radiation regardless of daytime or nighttime hours, when solar power generation equipment is installed in a thermoelectric facility, solar power generation equipment is the first priority for daytime hours. Photovoltaic power generation equipment is treated as priority equipment over power generation equipment. Therefore, the gas turbine is set as the priority next to the photovoltaic power generation equipment. In addition, the minimum power purchase amount is set to 0 KW. On the other hand, only the low-pressure boiler is displayed at night, and the photovoltaic power generation equipment is treated as the first priority in the night time zone. Set the minimum power purchase amount so that insufficient power is purchased. In addition, the solar hot water input type absorption refrigerator, the absorption refrigerator, and the electric turbo refrigerator are used in the daytime for the cold water warm water, and the solar hot water input type absorption refrigerator is prioritized. On the other hand, only the absorption refrigerator is set at night. These are set for 12 months.

  After setting the operating conditions in the above steps, a simulation is executed and the result is output. In the output step (S210), the operation result output unit 50 outputs the simulation results as time zones and / or as annual calculations. Output formats include graphs and forms.

  As the time zone output and annual calculation output, it is possible to output the results of power balance, low-pressure steam balance, fuel consumption, chilled water balance, number of operating units, metered charge (utility cost), power consumption details and power consumption. As an example of the output according to time in the thermoelectric equipment M of FIG. 1b, FIG. 9a, b shows a power balance result, and FIG. 9c, d shows a steam balance result. In the example shown in FIG. 9a, the power purchase amount E1, the power generation amount E2 of GT cogeneration, the power consumption amount E3 of the thermoelectric facility, the power consumption amount E4 other than the thermoelectric facility, and the power generation amount E6 of the solar power generation device are displayed. The reverse power E5 is generated. However, as a result of convergence calculation described later, it can be seen that no reverse power E5 is generated as shown in FIG. 9b. Further, in the example of FIG. 9c, the steam generation amount B1 of the low pressure boiler, the steam generation amount B2 of the GT cogeneration, the steam supply amount B3 to the use facility, and the steam consumption amount B4 of the absorption refrigerator are displayed. B5 has occurred. However, as a result of the convergence calculation described later, it can be seen that no surplus steam B5 is generated as shown in FIG. 9d.

  Here, the operation condition setting by the operation condition setting unit 40 (S208) and the simulation calculation procedure by the calculation unit 7p will be described below with reference to FIGS. These are composed of steps S01 to 07 of FIG. 8a, and each step corresponds to FIG. In each of the following descriptions, the main (power priority) operation is an operation in which no reverse power flow occurs in the power, and the heat main (heat load priority) operation is an operation in which, for example, no steam is released. Also, in describing each step, only the steps related to the example using the thermoelectric facility of FIG. In the case of the electric main operation, 9 o'clock to 16 o'clock and 21 o'clock to 22 o'clock in August are exemplified (in the case of the heat main operation, 18 o'clock to 22 o'clock in August).

"Cold water EB (S01, Fig. 8b)"
First, the cold water heat load and the return temperature difference are read (S11), and the required cold water flow rate is calculated (S12). Next, the number of operating refrigerators satisfying both the cold water heat load and the cold water flow rate is determined based on the operating priority of the refrigerator (S13), and the operating load factor and COP of each operating refrigerator are calculated. (S14). In this calculation, if the cold water outlet temperature setting is the same, the uniform load factor is assumed. Then, the amount of cold production of each chiller to be operated, consumption of electric power, fuel, and steam, cooling tower exhaust heat, heat recovery HP heat recovery heat amount, etc. are calculated (S15), and the process proceeds to the hot water energy balance step (S2). To do. In addition, the cooling tower exhaust heat can also be exhausted to the above external water.

In this example, in the operation condition setting unit 40, the priority of operation from 8:00 to 9:00 is preliminarily the solar hot water input type absorption refrigerator, the second priority is the absorption refrigerator, and the third priority is the turbo refrigerator. Is set. The cold water load value, supply temperature, and return temperature of the energy load setting unit 10 are read (S11). Then, the required chilled water flow rate is calculated by the following formula: required flow rate = chilled water load ÷ {(chilled water return temperature−chilled water supply temperature) × 4.186605} ”(S12). The required cold water flow rate is 411.7 m ³ / h, and the number of operating units is determined by comparing with the maximum cold water supply amount (S13). Necessary flow rate Maximum amount of chilled water supply> Necessary flow rate must be satisfied. The flow rate of the solar hot water charging type absorption chiller is 150.3m ³ / h and one unit is insufficient, so the second priority absorption chiller flow rate is 273.3m ³ / h, and the required flow rate is 2 units. Correspond. COP is determined to be 1.5658 for the solar hot water absorption type absorption refrigerator and 1.32460 for the absorption refrigerator considering the correction of the cooling temperature.

"Low-pressure steam EB (S03, Fig. 8c)"
As shown in the figure, first, the low-pressure process steam heat load is read (S31a), and the low-pressure process steam amount is calculated (S31b). The low-pressure steam consumption amount is calculated from the sum of the low-pressure process steam amount and the low-pressure steam amount for driving the thermoelectric device (S31c), and it is determined whether or not the power generation system device is low-pressure steam recovery (S32a). If it is not low-pressure steam recovery, the number of low-pressure boilers that satisfy the low-pressure boiler load is determined based on the operation priority of the low-pressure boiler (S33a), and the operation load factor of each low-pressure boiler to be operated is calculated (part of one unit only) (Load factor) (S33b), the steam production amount of each low-pressure boiler to be operated, the consumption of electric power and fuel, and the like are calculated (S33c).

  On the other hand, when the power generation system equipment is low-pressure steam recovery, the low-pressure boiler load S2 is obtained by subtracting the low-pressure steam acceptance from the low-pressure steam consumption, and the steam generation amount, power consumption, fuel, etc. of the low-pressure boiler are calculated. (S32b). Here, the amount of low-pressure steam received can also accept exhaust steam from the outside. Then, it is determined whether the main operation or the main heat operation (S34).

  In the case of the electric main operation, the steps of electric power EB of S35a to S35f and S71 to S73 surrounded by a one-dot chain line are executed. The electric power EB07 is shown in FIG. 8d, but will be described here for convenience of understanding. The operating equipment and the number of operating equipment are set from the target power generation amount (S35a), and the power generation system equipment is set to the maximum load factor (100%) (S35b). Then, the steps S35c to S35f, 71, 73 are executed, and if the surplus power is within a certain error range (for example, 1 kW) (S73), the process ends and the process proceeds to the subsequent steps. Here, the power generation amount of the solar power generation device is added to the power generation amount in steps S35c and S71. If the surplus power is not within the error range (S73), the load factor P1 of the power generation system device is changed as described later, and the steps S35c to S35f and 71 to 74 are repeated until the surplus steam is within the error range ( Convergence) calculation.

  In the case of the heat main operation, steps S37a to S38b are executed. The steps S37a to S37c are the same as S35a to S35c in the main operation, respectively, but the gas turbine cogeneration M120 corresponds to both the power generation system equipment and the steam generation equipment. The steps S37c to S38b are repeatedly executed until the surplus steam is within the constant error range α, as in the main operation. However, when there is no mutual influence between steam and electricity, the number of repetitions is one, and the process proceeds to the next step.

  Here, the convergence calculation of the main operation using the thermoelectric equipment M of FIG. 1b related to steps S35a to S74 will be described in more detail. The required number of refrigerators and the load factor are obtained from the cold water load and the temperature difference of the cold water, and one solar hot water charging type absorption refrigerator M381 and one absorption refrigerator M310 are determined to be two in total. Then, the required low-pressure steam amount S2 (t / h) is obtained from the load factor at this time (S32b).

  The difference between the in-system power consumption Ea and the minimum power purchase amount W1 (Ea−W1) kW is set as the target power generation amount, and from this, the number of operating gas turbine cogeneration M120 and the like is determined by subtracting the solar power generation power (S35a). The in-system power consumption Ea includes the internal power consumption of devices such as M120, M220, M310, M350, M381, and M1201, and the power load S8. The load factor of power generation equipment such as the gas turbine M120 is set to 100% (S35b). Then, the power generation amount G1 (kW / h), the recovered steam amount S1 (t / h), the internal power consumption, the fuel consumption amount and the like in the set gas turbine are obtained from the relational expression 1 etc. (S35c).

  From this calculation result, the recoverable low-pressure steam amount S1 (t) is obtained, and S1 and S2 are compared to determine whether or not surplus steam is generated (S35d). If the steam is surplus, it is discarded outside the facility (S35e). When the steam is insufficient, the low pressure boiler M220 corresponding to S3 (t / h) = S2-S1 is operated, and the amount of steam generated, internal power consumption, fuel consumption, etc. are calculated (S35f). Based on the above result, the system internal power consumption Ea is integrated and calculated (S71a).

  Here, although not shown in the figure, only in the first loop of S35c to S71 and S73, the GT cogeneration determines whether or not the power generation amount is insufficient in consideration of the solar power generation amount Es. In the case of G1 ≦ Ea−W1−Es, the insufficient power is purchased and the calculation ends. On the other hand, when G1> Ea-W1-Es, it is determined whether ABS (G1- (Ea-W1-Es)) is within an allowable error range α. In the present embodiment, the allowable error range α is within ± 1 kW, and if within the error range, the calculation ends. The ABS in the figure is a function that excludes the sign +-from the numerical value.

  When the allowable error is not within ± 1 kW, the load factor P1 of the GT cogeneration is changed, and the load factor P1 is obtained from Equation 2 so that G1 = Ea−W1−Es. However, if the load factor P1 is changed and the recovered steam amount S1 is changed, the internal power consumption is changed with the change in the operating conditions of the GT cogeneration and other equipment, and the in-system power consumption Ea is also changed. The initial purpose of preventing reverse tide in main driving cannot be achieved. Moreover, the amount of power generation of the photovoltaic power generation device varies depending on the amount of solar radiation on the slope, the outside air temperature, and the wind speed. Therefore, until convergence is performed in S73, it is necessary to perform convergence calculation by repeating S35c to S71 through the load factor P1 change in S74 as follows.

Here, the relationship between the GT cogeneration load factor P and the exhaust heat recovery rate S% is expressed by Equation 1, and the relationship between the load factor P and the power generation efficiency G% is expressed by Equation 2. Both relational expressions are general forms of a multivariate regression equation model and an independent two-variable equation. However, the intake air temperature is T ° C.
S = f (T, P) Equation 1
G = g (T, P) Equation 2

  When the intake air temperature is constant, when the load factor% is obtained from the target power generation amount created as a quadratic expression based on each explanatory variable, it can be obtained as a solution of the quadratic expression. However, since there is a limitation due to the minimum load factor% in the gas turbine, an intermediate value (Pmid%) between the maximum load factor Pmax%) and the minimum load factor (Pmin%) is set as the calculation start point. Therefore, Pmax = Pmid when the power generation amount at Pmid% is larger than the target power generation amount, and Pmin = Pmid when the power generation amount at Pmid% is smaller than the target power generation amount. To obtain the target load factor%. At the same time, the difference between the power generation amount kW at Pmid% and the target power generation amount kW is 1 kW or less as an allowable error. In consideration of the case where convergence is impossible, the maximum number of convergence calculations is set to 20, but the number of convergences can be set as appropriate. If converged, the process proceeds to the next step (S36a).

  The binary search method is merely an example of a convergence calculation method using an algebraic equation numerical calculation method. The convergence calculation method by the algebraic equation numerical calculation method is a numerical calculation of an equation that does not include differential / integral, such as a high-order algebraic equation, a fractional equation, an irrational equation, or a transcendental equation. In addition, as a representative example, Newton-Raphson method, binary search method, regular-falsi method, Bearstow-Hitchcock method, phosphorus method, Bernoulli method, Graffe method, or the like may be used. Each of these methods can be used for all convergence calculations in the present invention.

  Unlike the above, in the heat main operation of S37a to S38b, it is examined whether or not the difference between the recovered steam amount S1 and the low pressure steam load S2 is within the error range α. Normally, it is sufficient to change the load factor P1 for that purpose, and there is no necessity to perform convergence calculation. However, in a device such as the thermoelectric variable GT cogeneration M110, the generated steam can be recovered again to improve power generation efficiency. In such a case, it is also possible to change the steam recovery rate and / or the load factor P1, and perform convergence calculation so that there is no excess or shortage of low-pressure steam and no reverse power flow occurs.

Next, calculation examples will be described in further detail. First, in the electric main operation, the first priority is set to one solar hot water charging type absorption refrigerator M381, the second priority is set to the absorption refrigerator M310, and the third priority is set to the turbo refrigerator M350. The chilled water load value, supply temperature, and return temperature difference are read from the energy load setting unit 10 to calculate a necessary flow rate corresponding to the load energy of the chilled water. The required flow rate is obtained from cold water load ÷ {(cold water return temperature−cold water supply temperature) × 4.18605}. In this example, since the required water supply flow rate is 411.7 m ³ / h, the first priority is one solar hot water charging type absorption refrigerator M381 and the second priority is one absorption refrigerator M310, for a total of two units. Since the maximum amount of cold water is larger than the required flow rate, it is determined that the two units are operated. Next, the cold water production amount, power consumption, steam consumption, gas (fuel) consumption, and cooling tower exhaust heat amount of the first priority solar hot water input type absorption refrigerator M381 and the second priority absorption refrigerator M310 are respectively shown. calculate. The number of low-pressure boilers M220 and the load factor are determined from the steam consumption of the absorption refrigerator M310, and the gas consumption and power consumption of the low-pressure boiler M220 are calculated.

  Next, the first solar power generation amount Es + the power generation amount G1 of the gas turbine generator, the required power Ea in the system, and the minimum power purchase amount W1 of the operation condition setting unit 40 are compared. As shown in FIG. 9a, for example, the reverse power E5 is generated from 9:00 to 10:00. This corresponds to G1 + Es> Ea−W1. The convergence calculation is performed by sequentially changing the load factor of the gas turbine generator to Pmid described above so that the amount of power from the generator and solar power generation does not flow back to the power company as surplus electricity. If G1 + Es <Ea−W, the convergence calculation is completed. Thus, the fluctuation | variation of the generated electric power of a solar power generation device can be absorbed by the load factor adjustment of a cogeneration apparatus (gas turbine cogeneration M120).

  Next, even in the main heat operation, the maximum amount of cold water supplied from the solar hot water input type absorption refrigerator M381 and the absorption refrigerator M310 is larger than the required flow rate, so that the absorption refrigerator that requires steam is determined to operate as one unit. When the gas turbine is operated at a load of 100%, for example, if surplus steam B5 is generated from 18:00 to 19:00, the gas turbine load factor P1 is obtained so that ABS (S1-S2) ≦ α described above.

  Table 4 shows calculation formulas such as the amount of power generation and load factor of the first GT cogeneration. In Table 4, Formula 3-3 corresponds to Formula 1 and Formula 3-4 corresponds to Formula 2 above.

  Depending on the configuration of the thermoelectric equipment, another balance calculation step shown in FIG. 8a is performed. Hereinafter, steps other than those described above will be described.

"Warm water EB (S02)"
As shown in FIG. 8a, the hot water heat load and the return temperature difference are read (S21), and the required hot water flow rate is calculated (S22). Next, based on the operation priority of the hot water system equipment, the number of hot water system equipments that satisfy both the hot water heat load and the hot water flow rate is determined (S23), and the operating load factor of each hot water system equipment to be operated is calculated. (S24). In this calculation, if the hot water outlet temperature setting is the same, the load factor is uniform, and the load factor of the heat recovery HP may be different from the others. Then, the amount of heat production of each hot water system device to be operated, the amount of consumption of electric power / fuel / steam, the amount of heat collected, etc. are calculated (S25), and the process proceeds to the previous low-pressure steam EB (S03). The amount of heat collected can also be collected from externally used water (seawater, river water, etc.).

"High-pressure steam EB"
Since this is substantially the same except that the “low pressure steam” in the low pressure steam EB of S03 is replaced with “high pressure steam”, illustration is omitted. However, the amount that is reduced in pressure by the header and accepted as low-pressure steam is different from the point that it does not become surplus steam in the previous step S35e. The gas engine exhaust hot water EB (S05) is executed after the reference C through the high-pressure steam EB (S04) not shown in detail from the reference B of the low-pressure steam EB (S03).

“Gas engine exhaust water EB (S05, FIG. 8d)”
First, in the previous chilled water EB (S01), the operating number and load factor of each chilled water system device are calculated, and the chilled water calorific value (production amount Ma) A of the waste water injection type absorption chiller and other chilled water system devices are calculated. The amount of cold water heat is determined (S13 to S15). Further, in the previous hot water EB (S02), the number of operating hot water system devices and the load factor are calculated, and the hot water heat quantity B of the hot water recovery heat exchanger is determined (S23 to S25).

  Next, it is determined whether or not the waste hot water charging type absorption refrigerator is operating (S51a). If it is in operation, the amount of warm water discharged from the gas engine is calculated, and the generated cold water heat amount A 'of the exhaust-temperature-water-absorbing absorption refrigerator that can be generated by the amount of discharged warm water is calculated (S52a). Then, it is determined whether the generated cold water heat amount A 'is insufficient with respect to the previous cold water heat amount A (S53a). On the other hand, when the amount is insufficient, the operating number and load factor of the other chilled water devices are determined based on the operation priority of the chilled water devices so that the amount of chilled water heat is produced by the other chilled water devices (S54a), and S55a. Migrate to The required steam amount S2 of the other chilled water system equipment and the generated steam quantity S1 of the steam generating equipment are obtained (S55a, S56), and it is determined whether the difference between the generated steam quantity S1 and the required steam quantity S2 falls within a predetermined error range α ( S57). The unit and numerical value of the error range α vary depending on energy.

  When the difference is not within the error range α, the load factor of the steam generating device is changed (S58), and the process returns to step S52a through the path of the code SR57a. Steps S52a to S58 are repeated until the insufficient amount of cold water is eliminated and the error is within the error range α. In other words, the convergence factor is calculated by changing the load factor of the steam generating device so that the generated steam amount S1 converges to the required steam amount S2, and the operating number and / or load factor of the chilled water system that can balance the chilled water and the steam is determined. decide. If the difference is within the error range α, the process proceeds to hot water supply EB (S06).

  On the other hand, when the waste hot water charging type absorption refrigerator is not operating, it is determined whether the hot water recovery heat exchanger is operating (S51b). When the hot water recovery heat exchanger is in operation, the procedures are steps S52b to 58 and route SR57b surrounded by a broken line in the figure. This procedure is the same as that for the chilled water system equipment described above. The convergence rate is calculated by changing the load factor of the steam generating equipment, and the number of hot water system equipment and / or the load factor that can balance both hot water and steam is determined. To do. When the hot water recovery heat exchanger is not operating, the process proceeds to hot water supply EB (S06).

  Here, FIGS. 14 and 15 will be described as an example. The thermoelectric facility illustrated in FIG. 14 includes a gas engine M150, a hot water absorption refrigerator M320 as an exhaust warm water charging type absorption refrigerator, and an absorption refrigerator M310 as another cold water system device. As shown in FIG. 15, in the previous steps S13 to S15, the number of operating devices and the load factor Lp for the chilled water load C are calculated, and the chilled water calorie (production amount Ma) A is determined as A1.

   When the generated cold water heat amount A 'is A1', in S74a, the load factor of the absorption chiller M310 is changed to a2 'so as to produce the cold water heat amount A2' supplementing the insufficient heat amount x. In the case of the generated cold water heat amount A1 ″, the absorption refrigerator M310 cannot compensate for the insufficient heat amount y. For example, the absorption refrigerator M310 ′ is newly started up, and each absorption refrigerator is configured to supplement the insufficient heat amount y with two absorption refrigerators. Is changed to a2 ″ and d1. As described above, when the number of operating chilled water devices and / or the load factor is changed, the required steam amount S2 changes, and the load factor of the gas engine M150 that supplies the steam So (S1) also changes. As a result, the amount of discharged hot water WWo varies and the amount of cold water in the hot water absorption refrigerator M320 also varies. Therefore, the load factor of the gas engine M150 is determined so that the difference between the generated steam amount S1 and the necessary steam amount S2 falls within a predetermined error range α (S55a to 58). Here, a minimum operating load factor is defined for the gas engine M150, and operation is not performed below the load factor. In such a case, for example, steam is supplied from another steam generating device such as a low pressure boiler, and the load factor of the steam generating device is changed so that the generated steam amount S1 of the steam generating device converges to the required steam amount S2 (S58). In addition, you may use Genelink (trademark) as a waste-heated water injection type absorption refrigerator. Moreover, it is also possible to use an exhaust warm water charging type absorption refrigerator and a warm water recovery heat exchanger in combination.

  In addition, the said energy balance is performed as the solar gene link used as a solar hot water utilization apparatus is equivalent to the said waste heat water type absorption refrigerator. The solar warm water heat exchange corresponds to the hot water recovery heat exchanger, and the energy balance is executed.

"Hot water supply EB (S06, Fig. 8e)"
First, a hot water supply heat load, a hot water supply temperature, and a water supply temperature are read (S61), and a water supply flow rate and a hot water storage tank temperature are calculated (S62). Next, the number of hot water heaters operating / stopped and the number of operating / stops are determined based on the temperature in the hot water storage tank (S63), and the hot water heater additional operation is performed so that the hot water storage tank heat storage expires at a specified time (S64). Then, the production heat amount and power / fuel consumption of each hot water heater to be operated are calculated (S65), and the process proceeds to the next power EB (S07).

“Electric Power EB (S07)”
Here, it is determined whether or not the main operation is performed after the above-described S71 (S72), and is substantially as described in the previous low-pressure steam EB. In the case of the heat main operation (S72), the power purchase amount is calculated (S75), and the process ends. When the load factor P1 is reset in the main operation, it is set to return to (K) before S35c of the low-pressure steam EB03 for convenience of explanation. However, as long as there is no contradiction in the calculation, for example, the initial position of the cold water EB01 ( It may be set to return to K ′). It makes sense to reset the conditions and adjust the operating state again in all systems of equipment, so that the specific combined total energy converges to the target value.

  FIGS. 9a and 9c show graphs when the GT cogeneration is operated at 100% load with the thermoelectric equipment of FIG. 1b. As described above, since the breakdown of the power load is set as “load other than thermoelectric equipment” by the process condition setting unit 22, the power load value set by the energy load setting unit 10 is input to the power column other than the heat source, and the thermoelectric The electric power required for the facility is input to the thermoelectric power column as a result of simulation. In FIG. 9a, the reverse power E5 is generated in the time zone from 9:00 to 15:00 and from 21:00 to 22:00. Further, as described above, since the breakdown of the low-pressure steam load is set to “only supply to other than thermoelectric equipment” in the process condition setting unit 22, the low-pressure steam load value set in the energy load setting unit 10 is displayed in the low-pressure steam load column. 0 is input, and the steam usage necessary for the thermoelectric equipment M is input to the low-pressure steam total column as a result of the simulation. In FIG. 9c, surplus steam B5 is generated in the time zone from 18:00 to 22:00.

  Therefore, the operating condition setting unit 40 sets the power load priority from 8:00 to 18:00 and the thermoelectric load priority from 18:00 to 22:00 when surplus steam is generated. Then, the convergence calculation as described above is performed, and as shown in FIGS. 9b and 9d, the reverse power and surplus steam are eliminated and become zero.

  For each device, a related device is incorporated in each device model, and is operated and calculated according to the operation condition (load factor) for each device or within the range of the condition if there is a limit condition. For example, solar hot water input type absorption chiller related equipment as solar hot water input type absorption chiller auxiliary power, cold water pump, cooling water pump, individual cooling tower, start-up loss as constraints, lower limit of operable cooling water temperature The amount of solar heat recovered, the amount of gas (fuel), the amount of electric power, the amount of water used, and the amount of cold water to be output are calculated for the solar hot water input type absorption chiller operated in consideration of the value and the like. When the amount of chilled water in the load setting unit is insufficient in one solar hot water charging type absorption chiller, other chillers (for example, absorption chillers) are started in the order of the chillers set in the operating condition setting unit 40, and the amount of chilled water To balance. If the cold water balance is still not achieved, the last priority device (for example, a centrifugal chiller) is automatically started up and balanced.

  The steam supplied to the absorption refrigerator is configured to be supplied from steam generated in the boiler system and the power generation system from the necessary steam balance. Both the boiler system and the power generation system are modeled in the same manner as the cold water system, and the rising steam amount and the power generation amount are balanced in the order set by the operation condition setting unit 40. If steam and electricity are still not balanced, the last heat source device in the priority order is configured to be started and balanced. If surplus power is generated even when the gas turbine generator is stopped, the balance is achieved by stopping the photovoltaic power generation devices one by one at the end.

  In this way, the system balance calculation procedure assembles the thermoelectric balance in order for each series, for example, in the order of cold water, hot water, low pressure steam, high pressure steam, hot water supply, and power. When there is a change in the assembled conditions, the convergence calculation is performed by the multivariable algebraic equation numerical analysis method, and the thermoelectric balance of all systems is calculated. Based on this balance result, the output of the device that is operated and output with the load of each device is organized into necessary information and output by the operation result output unit 50 as described above. The output is performed in the graph format or the form format based on the output by time zone and the annual calculation output as described above.

Finally, the possibilities of yet another embodiment of the present invention will be described.
In the said embodiment, the solar gene link M381 was used as a solar thermal water utilization apparatus. However, the present invention is not limited to this. For example, as shown in FIG. 1c, a solar hot water heat exchanger M424 can be used. In this solar hot water heat exchange, hot water is produced using solar hot water. Moreover, the load factor of solar hot water heat exchange is determined by the amount of solar heat recovered. The equipment performance data of solar hot water heat exchange sets the number and capacity of main engines, power consumption (lift and efficiency) of the hot water pump and solar hot water pump, each design temperature difference of hot water and solar hot water, and the volume of secondary piping. Then, the necessary hot water is calculated from the solar heat available amount and the solar heat recovery amount, and adjusted with other hot water system devices. Thus, the fluctuation | variation of the heat collecting amount of a solar-heat collecting device can be absorbed by adjustment of the amount of hot water heat by another thermoelectric device. Solar Genelink and Solar Hot Water Heat Exchange can both be included in the thermoelectric facility, but can also be used simultaneously.

  In the said embodiment, the user input the panel inclination and azimuth | direction of sunlight related apparatus, and calculated | required the slope solar radiation amount based on the input value (eigenvalue). However, for example, in the case of a solar tracking type solar power generation device, these angles vary depending on the season (month) and time. In that case, instead of the user input, for example, the optimal panel inclination and orientation may be calculated for each month and hour, and the slope solar radiation amount may be obtained based on the calculated values.

The present invention is a thermoelectric facility in which a plurality of thermoelectric devices are connected, and at least electric power and fossil fuel are supplied, and electric power, low cold water, cold water, hot water, hot water supply, high pressure steam and low pressure steam are produced and supplied to utilization facilities. The thermoelectric equipment has at least solar-related equipment, and can be used as a thermoelectric equipment simulation system that simulates the amount of energy used to produce any of the combined total energy. In addition, the present invention relates to power consumption, fossil fuel and other fuel consumption, and environmental load data setting unit obtained under the conditions of the energy load setting unit, the basic condition setting unit, the system construction setting unit, and the operation condition setting unit. It can be used as a system for simulating the environmental load (primary energy, CO ₂ , NOx, SOx) by multiplying each unit environmental load. Furthermore, the present invention can be used for operation diagnosis by simulation of the current state of thermoelectric equipment, energy saving by changing the operation method, improvement by equipment renewal, energy saving, evaluation of environmental load reduction, and consultation.

1: simulation system, 2: user terminal, 3: administrator terminal, 4: DB server, 5: network, 6: user interface, 6a: monitor, 6b: keyboard, 6c: mouse, 7: CPU (calculation means), 7a: bus, 7b: temporary storage memory, 7c: HDD, 7d: network adapter, 7p: calculation unit, 7q: calculation determination unit, 7x: data file, 7y: processing application (calculation means), 7z: load creation application 10: Energy load setting unit, 20: Basic condition setting unit, 21: Utility cost setting unit, 21a: Electric power cost setting unit, 21b: Fuel cost setting unit, 22: Process condition setting unit, 23: Environmental load data setting unit 24: Temperature data setting unit, 30: System construction setting unit, 40: Operating condition setting unit 50: Operation result output unit, 60: Case file creation unit, 70: Display control unit, 71: Display window, 100: Database group, 100a: Read data, 110: Individual data group, 200: Customer database, 201: Case File database, F: equipment used, M: thermoelectric equipment

Claims (11)

A plurality of thermoelectric devices are connected, at least electric power and fuel (hereinafter referred to as “supply energy”) are supplied, and at least any two of electric power, low cold water, cold water, hot water, hot water supply, high pressure steam and low pressure steam The relationship between the operating conditions of the thermoelectric equipment and the amount of supply energy used or the total amount of composite energy produced in the thermoelectric equipment that manufactures and supplies the equipment (hereinafter referred to as “composite total energy”) And
The thermoelectric device includes at least a solar power generation device and / or a solar heat collection device (hereinafter referred to as “solar-related device”) and a thermoelectric device including at least a pump using a motor,
An energy load setting unit that sets the amount of total composite energy required by the facility to be used for each time period on a daily basis;
A process condition setting unit for setting process conditions including at least either the outside air temperature or the wet bulb temperature of the thermoelectric equipment and the utilization equipment, and the amount of horizontal solar radiation of the solar-related equipment;
An operation condition setting unit for setting operation availability and operation priority for each thermoelectric device according to time zone; and
A calculation unit for calculating at least the production amount of the combined total energy as a result of operating the thermoelectric equipment according to the operation condition of the operation condition setting unit,
Any one of the thermoelectric devices excluding the solar related device includes a partial load characteristic that varies depending on the process conditions,
The solar-related device has an output characteristic that varies depending on the amount of solar radiation and the outside air temperature based on the horizontal solar radiation amount among the process conditions,
The calculation unit changes the load factor of the thermoelectric device so that the production amount of any one of the combined total energy converges to the target value set by the energy load setting unit in accordance with the output fluctuation of the solar-related device. And adjusting the balance of at least the combined total energy related to the thermoelectric device based on the changed load factor, and changing and adjusting the load factor of the thermoelectric device until the production amount converges to the target value. A simulation system for thermoelectric equipment that performs repeated convergence calculations. The amount of solar radiation on the slope includes latitude, longitude, altitude, time, horizontal solar radiation amount, horizontal horizontal solar radiation directly achieved and horizontal solar radiation amount of the horizontal solar radiation data of the date and time including the sky scattering component and the sunlight. The thermoelectric equipment simulation system according to claim 1, wherein the simulation system is obtained by summing up the directly achieved slope solar radiation amount, the slope solar radiation sky scattering component, and the slope solar radiation ground reflection component, which are respectively derived from the panel inclination and orientation of the related equipment. The thermoelectric equipment simulation system according to claim 2, wherein the solar-related device includes the solar power generation device, and the generated power _Eph of the solar power generation device is obtained by the following equation.

The thermoelectric equipment simulation system according to claim 2, wherein the solar-related device includes the solar heat collection device, and a heat collection amount Qco of the solar heat collection device is obtained by the following equation.

The solar-related device includes the solar power generation device, the thermoelectric device includes a power generation system device, and absorbs fluctuations in power generated by the solar power generation device by adjusting a load factor of the power generation system device. 4. The thermoelectric facility simulation system according to any one of 4 above. The solar-related device includes the solar heat collecting device, the thermoelectric device includes a solar hot water input type absorption refrigerator and / or a solar hot water heat exchanger, and changes in the amount of heat collected by the solar heat collecting device are input to the solar hot water. The thermoelectric equipment simulation system according to any one of claims 1 to 4, wherein absorption is performed by adjusting a combustion amount of a mold absorption refrigerator and / or adjusting a heat amount of hot water and / or cold water by another thermoelectric device. The thermoelectric device according to claim 6, wherein after the temperature of the solar hot water supplied from the solar thermal collector exceeds a predetermined value, the solar hot water charging type absorption refrigerator and / or the solar hot water heat exchanger is used for operation. Equipment simulation system. The said total energy is the simulation system of the thermoelectric equipment in any one of Claims 1-7 calculated in order of steam energy before this power energy, and other energy before this steam energy. The thermoelectric equipment simulation system according to claim 1, wherein the convergence calculation is a convergence calculation by an algebraic equation numerical calculation method. A thermoelectric facility operation method for operating a thermoelectric facility using the thermoelectric facility simulation system according to any one of claims 1 to 9, wherein the solar-related device includes the solar power generation device, and the thermoelectric device. Includes a power generation system device, and the calculation unit adjusts the load of the power generation system device to change the power generation power of the solar power generation device, thereby adjusting the power amount of the thermoelectric device including the power generation system device. The thermoelectric equipment operation method to reflect. A thermoelectric facility operating method for operating a thermoelectric facility using the thermoelectric facility simulation system according to any one of claims 1 to 9, wherein the solar-related device includes the solar heat collecting device, and the thermoelectric device. Includes a solar hot water input type absorption refrigerator and / or a solar hot water heat exchanger, and the calculation unit adjusts a combustion amount of the solar hot water input type absorption refrigerator in accordance with fluctuations in the heat collection amount of the solar heat collector. And / or production of hot water and / or cold water of the thermoelectric device including the solar hot water input type absorption refrigerator and / or solar hot water heat exchanger by adjusting the amount of heat and / or cold water by other thermoelectric devices Thermoelectric equipment operation method reflected in quantity.

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