JP6504956B2 - Air conditioning equipment selection support system - Google Patents

Description

  The present invention relates to an air conditioning system selection support system for selecting an air conditioning system suitable for a room.

  The technique of patent document 1 is proposed as an air conditioning apparatus selection assistance system which can support selection of an air conditioning apparatus.

  In patent document 1, the environmental condition of the building which installs an air conditioning apparatus, the magnitude | size of a room, and the information regarding the floor plan including the scale of the at least an attached room of a room are received. Also, based on information on room layout, a correction value is obtained from the correction information data for correcting the necessary capacity of the air conditioning and related information, and based on the size of the room and the correction value, it is related to the required capacity of the air conditioning. Correct the number of tatami as information. Then, the necessary capacity of the air conditioning and heating is acquired from the capacity data by environment based on the number of tatami after the correction, the model information of the optimum equipment is acquired from the equipment information data based on the acquired necessary capacity, and output as a selection result Has been proposed.

Patent No. 5480607

  However, in the technique of Patent Document 1, since the correction value of the number of tatami mats is determined in advance by the room arrangement information, there is a prediction of improvement in order to determine the cooling / heating equipment of the load suitable for the actual room.

  The present invention has been made in consideration of the above-mentioned facts, and an object thereof is to select an air-conditioning apparatus suitable for the characteristics of a room.

  In order to achieve the above object, an air conditioning and heating equipment selection support system according to a first aspect relates to regional information of each of a plurality of buildings, environmental performance information of each room of the plurality of buildings, and heat of each room. A storage unit for storing room information and operation record information of the heating and cooling equipment provided in each room; an acquisition unit for acquiring area information on a target room to be selected for the heating and cooling equipment and the room information on the target room Calculation for calculating the cooling and heating performance necessary for cooling and heating by extracting the performance information on the room stored in the storage unit similar to the area information on the target room acquired by the acquisition unit and each of the room information And a selection unit configured to select an air conditioning device suitable for the target room from among a plurality of air conditioning devices commercially available based on the calculation result of the calculation unit.

  According to the first aspect, the storage unit includes area information of each of a plurality of buildings, environmental performance information of each room of the plurality of buildings, room information related to heat in and out of each room, and The operation record information of the air conditioning equipment is stored. For example, as environmental performance information, at least one information of an average temperature per unit time, an average room temperature of each room, and an average amount of solar radiation can be applied. Further, as the room information, information specifying the room heating and cooling equipment, the heat insulation performance and area for each predetermined site of each room, and at least one of the ventilation amount and the presence or absence of auxiliary heating can be applied. Further, as the operation record information, it is possible to apply at least one piece of information of the power consumption per unit time of the air conditioning and heating device, the operation time, the operation mode, and the set temperature.

  In the acquisition unit, regional information of a target room to be selected for the air conditioning and heating equipment and the room information of the target room are acquired.

  The calculation unit extracts room operation performance information stored in the storage unit similar to the area information and room information of the target room acquired by the acquisition unit, and calculates the air conditioning performance required for air conditioning and heating.

  And in a selection part, an air conditioning apparatus suitable for an object room is selected out of a plurality of air conditioning apparatus based on a calculation result of a calculation part. That is, since the air conditioning performance required at the time of air conditioning and heating is calculated from similar room information and air conditioning equipment is selected, it is possible to select an air conditioning apparatus that matches the characteristics of the actual room.

  Note that the air conditioning device selection support system may further include a terminal device for inputting area information of the target room and room information of the target room, and the selection unit may transmit the selection result to the terminal device.

  In addition, the air conditioning device selection support system may further include a collection unit provided in each of a plurality of buildings and collecting the environmental performance information and the operation performance information to be stored in the storage unit.

  As described above, according to the present invention, there is an effect that it is possible to select an air conditioning device suitable for the characteristics of the room.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram which shows schematic structure of the air conditioning apparatus selection assistance system which concerns on this embodiment. It is a functional block diagram showing each function of HEMS and HEMS center of a heating and cooling system selection support system concerning this embodiment. It is a flowchart which shows an example of the information collection process performed by HEMS of the air conditioning apparatus selection assistance system which concerns on this embodiment. It is a flowchart which shows an example of the room information input process performed by the HEMS application of the air conditioning apparatus selection assistance system which concerns on this embodiment, and the room information input part of a portable terminal. It is a flowchart which shows an example of the information acquisition process performed by the HEMS center of the air conditioning apparatus selection assistance system which concerns on this embodiment. It is a flowchart which shows an example of the air conditioning load calculation process performed by the HEMS center of the air conditioning apparatus selection assistance system which concerns on this embodiment. (A) is a figure for demonstrating calculation of the air conditioning load at the time of air conditioning, (B) is a figure for demonstrating calculation of the air conditioning load at the time of heating. It is a flow chart which shows an example of classification / statistics processing performed at a HEMS center of a heating and cooling system selection system concerning this embodiment. It is a table | surface which shows the example classified as room attribute information and was made into statistical data. It is a figure for demonstrating an example of the calculation method of air conditioning performance required. It is a flowchart which shows an example of the apparatus selection assistance process performed by the HEMS center of the air conditioning apparatus selection assistance system which concerns on this embodiment.

  Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of a cooling and heating device selection support system according to the present embodiment.

  The air conditioning device selection support system 10 according to the present embodiment is configured to include a home energy management system (HEMS) 12 and an HEMS center 14.

  The HEMS 12 includes an operation unit and a display unit, and also has a function of managing, for example, the use state of power as energy used in a building. Specifically, it has a function of monitoring and displaying the power consumption and the like of each room.

  The HEMS 12 is basically configured as a general computer. That is, although not shown, a CPU, a ROM, a RAM, an input / output port and the like are provided, and they are respectively connected to buses such as a system bus and a data bus. The HEMS display terminal 16 including an operation unit and a display unit, a memory, and the like are connected to the input / output port. The HEMS display terminal 16 may apply a touch panel in which the operation unit and the display unit are integrated, or may be provided with a mechanical switch or the like separately from the display unit. Both mechanical switches may be provided. Also, a touch switch may be applied instead of the mechanical switch. In addition, the HEMS 12 and the HEMS center 14 may be provided with a web server function and displayed on a browser of a general-purpose terminal such as a personal computer, a tablet terminal, or a smartphone.

  Further, the HEMS 12 is connected to the distribution board 18, the heating and cooling equipment 20 installed in each room, the indoor environment sensor 22, the outdoor environment sensor 24, etc., and the HEMS 12 can acquire various information output from each of them. It is done.

  The distribution board 18 supplies the power received from the system power or the like to various loads such as the air conditioning apparatus 20 provided in each room. Moreover, the distribution board 18 is comprised including the sensor which detects the power consumption of loads, such as air conditioning equipment 20 grade | etc., Of each room, detects the power consumption of air conditioning apparatus 20 grade | etc., And outputs the detection result to HEMS12. Have.

  The heating and cooling device 20 is configured to include a configuration controllable by the HEMS 12. For example, the air conditioning device 20 measures the air conditioning operation result information including at least one of the operation mode, the set temperature, the operation time, and the power consumption, and outputs the measurement result to the HEMS 12. The power consumption may output information measured by the distribution board 18.

  The indoor environment sensor 22 is provided indoors, detects a physical quantity related to the indoor environment, and outputs a detection result to the HEMS 12. As the indoor environment sensor 22, for example, at least one of a humidity sensor, a temperature sensor, and a solar radiation amount sensor can be applied. In addition, when room temperature, humidity, etc. can be acquired by an ECHONET Lite (trademark) corresponding | compatible air-conditioner etc., you may substitute the information.

  The outdoor environment sensor 24 is provided outdoors, detects a physical quantity related to the outdoor environment, and outputs a detection result to the HEMS 12. As the outdoor environment sensor, for example, as with the indoor environment sensor, at least one of a humidity sensor, a temperature sensor, and a solar radiation amount sensor can be applied.

  In addition, a network 26 such as the Internet is connected to the HEMS 12 so that exchange of information with the HEMS center 14 connected to the network 26 is enabled.

  The HEMS center 14 receives information from the HEMS 12, accumulates the information, and performs processing for selecting an air conditioner. Moreover, the HEMS center 14 performs the process etc. which selects the air conditioning apparatus 20 suitable for a room based on the information which the HEMS 12 collected.

  Subsequently, the functions of the HEMS 12 and the HEMS center 14 will be described. FIG. 2 is a functional block diagram showing the functions of the HEMS 12 and the HEMS center 14 of the cooling and heating device selection support system 10 according to the present embodiment.

  The HEMS 12 includes the HEMS information collection unit 28 as a function of collecting operation information and environment information of the air conditioning and heating device 20 as HEMS information. Then, the information collected by the HEMS information collection unit 28 is transmitted to the HEMS center 14 via the network 26.

  In addition, it is possible to input information from the HEMS application 13 installed in the HEMS display terminal 16 or a computer to the HEMS center 14. The HEMS application 13 has a room information input unit 30 as a function. The room information input unit 30 inputs room information related to the heat of the room. For example, the information specifying the heating and cooling equipment 20 of each room, the roof, ceiling, outer wall, inner wall, floor of each room, heat insulation performance of opening (heat transmission coefficient, opening blocking coefficient, opening orientation coefficient, etc.), each room Enter the structure and configuration information of. The configuration information includes a roof, a ceiling area, an outer wall area, an inner wall area of an adjacent room, a floor area, an opening area, a unit time ventilation amount, and auxiliary cooling and heating. The room information input unit 30 is also capable of inputting room information of a target room in order to select an air conditioning device suitable for the room.

  In addition, it is possible to exchange information with the HEMS center 14 using the HEMS application 13 and various portable terminals 15 (for example, a personal computer, a tablet, a mobile phone, etc.). The mobile terminal 15 has a function as the room information input unit 30 described above, and also has a function as the recommended device display unit 31. The recommended device display unit 31 is a function of selecting the recommended air conditioner 20 suitable for the room information by the HEMS center 14 and displaying the same.

  On the other hand, the HEMS center 14 has an individual data processing unit 32, an individual data storage unit 46, a data statistical processing unit 42, a statistical data recording unit 50, an air conditioning and heating equipment database 48, and an air conditioning and heating equipment proposal processing unit 44 as functions. .

  The individual data processing unit 32 has the functions of a HEMS information acquisition unit 34, an air conditioning load calculation unit 36, a room information acquisition unit 38, and an operation efficiency calculation unit 40.

  The HEMS information acquisition unit 34 acquires HEMS information collected by the HEMS information collection unit 28 from the HEMS 12. Specifically, while acquiring heating / cooling operation information from HEMS12 as heating / cooling operation performance information, environmental information is acquired from HEMS12 as environmental performance information. In addition, as heating / cooling operation performance information, the power consumption per unit time of each cooling / heating apparatus, operating time, an operation mode, and at least 1 information of a setting temperature etc. are mentioned. Moreover, as environmental performance information, the average temperature for every unit time, the average room temperature of each room, and at least 1 information of the average solar radiation amount etc. are mentioned.

  The air conditioning load calculation unit 36 calculates the amount of heat (cooling load) removed from the room by the air conditioning device 20 at the time of cooling based on the information of each room, the environmental performance information, etc. Calculated as cooling and heating load results information.

  The room information acquisition unit 38 acquires the above-described room information input by the room information input unit 30 of the HEMS application 13 or the portable terminal 15. The acquired room information is used for calculation of the air conditioning load and the like, selection of the air conditioning apparatus 20, and the like.

  The driving efficiency calculation unit 40 calculates the driving efficiency by dividing the cooling and heating load of the cooling and heating device 20 by the power consumption (cooling and heating load / power consumption).

  The individual data storage unit 46 stores the cooling and heating operation record information and environmental record information acquired by the HEMS information acquisition unit 34, and the cooling and heating load record information calculated by the cooling and heating load calculation unit 36. Furthermore, the individual data storage unit 46 stores the room information acquired by the room information acquisition unit 38 and the cooling and heating efficiency information calculated by the operating efficiency calculation unit 40.

  The data statistical processing unit 42 performs classification / statistical processing on various information stored in the individual data storage unit 46. The data statistical processing unit 42, for example, classifies room information into categories such as area and room attribute information, and performs processing for calculating the heating and cooling performance (necessary and sufficient heating and cooling performance) required for heating and cooling according to the classified category. .

  The statistical data recording unit 50 records the processing result of the data statistical processing unit 42, that is, the calculation result of the necessary and sufficient cooling and heating performance classified by category, as classified statistical data.

  The heating and cooling equipment database 48 stores a plurality of commercially available cooling and heating equipment information. For example, information such as a maker, model number, cooling capacity, heating capacity, performance, specification, and selling price is stored as the heating and cooling equipment information.

  The air conditioning and heating equipment proposal processing unit 44 performs equipment selection support processing (details will be described later) to select and propose an air conditioning and heating equipment suitable for the room.

  Subsequently, a specific processing example performed by the cooling and heating device selection support system 10 according to the present embodiment configured as described above will be described.

  First, specific processing performed by the HEMS 12 will be described. FIG. 3 is a flowchart showing an example of the information collection process performed by the HEMS 12 of the cooling and heating device selection support system 10 according to the present embodiment. The process in FIG. 3 starts, for example, at predetermined time intervals.

  In step 100, the HEMS information collection unit 28 measures the power consumption of each air conditioning and heating device 20 during a unit time to collect information, and the process proceeds to step 102. For example, the HEMS information collection unit 28 measures the power consumption of each of the air conditioning and heating devices 20 using the power consumption measurement function of the distribution board 18.

  In step 102, the HEMS information collection unit 28 measures the operation time of each air conditioning device 20 in a unit time to collect information, and the process proceeds to step 104. For example, when the HEMS information collection unit 28 measures the power consumption of each air conditioner 20 using the measurement function of the power consumption of the distribution board 18, the operation time is also measured simultaneously.

  In step 104, the HEMS information collection unit 28 learns information from each of the air conditioning and heating devices 20 and records the operation mode and set temperature of each of the air conditioning and heating devices 20 in a unit time, and proceeds to step 106.

  In step 106, the HEMS information collection unit 28 calculates the average outdoor air temperature during the operation time of each of the air conditioning and heating devices 20, and proceeds to step 108. That is, based on the information acquired by the HEMS collection unit 28 from the outdoor environment sensor 24, the average outdoor temperature during the operation time of each of the air conditioning and heating devices 20 is calculated.

  In step 108, the HEMS information collection unit 28 calculates the average indoor air temperature during the operation time of each of the air conditioning and heating devices 20, and proceeds to step 110. That is, based on the information acquired by the HEMS information collection unit 28 from the indoor environment sensor 22, the average indoor air temperature during the operation time of each of the air conditioning and heating devices 20 is calculated.

  In step 110, the HEMS information collection unit 28 calculates the average amount of solar radiation during the operation time of each of the air conditioning and heating devices 20, and proceeds to step 112. That is, based on the information acquired by the HEMS information collection unit 28 from the indoor environment sensor 22, the average amount of solar radiation during the operation time of each of the air conditioning and heating devices 20 is calculated.

  In step 112, the HEMS 12 transmits the cooling and heating operation information and the environment information collected by the HEMS information collection unit 28 to the HEMS center 14 to complete a series of information collection processing.

  Next, specific processing performed by the HEMS application 13 and the mobile terminal 15 will be described. FIG. 4 is a flowchart showing an example of a room information input process performed by the HEMS application 13 of the air conditioning and heating device selection support system 10 and the room information input unit 30 of the portable terminal 15 according to the present embodiment. The process in FIG. 4 is started, for example, when an instruction to input room information is issued by the HEMS application 13 or the portable terminal 15.

  In step 150, the area information input image is displayed on the computer on which the HEMS application 13 is installed, the monitor of the portable terminal 15, or the like, and the process proceeds to step 152.

  In step 152, the HEMS application 13 or the portable terminal 15 determines whether area information of the room has been input, and the process waits until the determination is affirmed and shifts to step 154.

  In step 154, a screen for inputting materials and areas of the roof, ceiling, outer wall, and inner wall is displayed on a computer with the HEMS application 13 installed, a monitor of the portable terminal 15, or the like, and the process proceeds to step 156.

  In step 156, it is determined whether or not the material and area displayed on the screen have been input by the room information input unit 30, and the process waits until the determination is affirmative, and the process moves to step 158.

  In step 158, the screen for inputting the material, area, orientation, and heat insulation information of the opening is displayed on the computer on which the HEMS application 13 is installed, the monitor of the portable terminal 15, or the like, and the process proceeds to step 160.

  In step 160, it is determined whether or not each piece of information on the opening displayed on the screen has been input by the room information input unit 30, and the process waits until the determination is affirmed and shifts to step 162.

  In step 162, a screen for inputting ventilation amount and ventilation performance per unit time is displayed on a computer with the HEMS application 13 installed, a monitor of the portable terminal 15, or the like, and the process proceeds to step 164.

  In step 164, it is determined whether or not the ventilation information displayed on the screen is input by the room information input unit 30, and the process waits until the determination is affirmed and shifts to step 166.

  In step 166, a screen for inputting the presence or absence of auxiliary cooling and heating, the operation frequency, and the capability is displayed on the computer on which the HEMS application 13 is installed, a monitor of the portable terminal 15, or the like.

  In step 168, it is determined whether or not the auxiliary cooling and heating information displayed on the screen is input by the room information input unit 30, and the process waits until the determination is affirmed and shifts to step 170.

  In step 170, the screen for inputting the information of the adjacent room is displayed on the computer on which the HEMS application 13 is installed, the monitor of the portable terminal 15, or the like, and the process proceeds to step 172.

  In step 172, it is determined whether the adjacent room information displayed on the screen is input by the room information input unit 30, and the process waits until the determination is affirmative, and the process moves to step 174.

  In step 174, the room information input unit 30 transmits the information input in each of the above-described steps as room information to the HEMS center 14, and the series of room information input processing ends.

  FIG. 5 is a flowchart showing an example of the information acquisition process performed by the HEMS center 14 of the cooling and heating device selection support system 10 according to the present embodiment. In addition, the process of FIG. 5 starts, when room information, heating / cooling operation information, environment information, etc. are transmitted from the HEMS 12, the HEMS application 13, the portable terminal 15, and the like.

  In step 200, the HEMS information acquisition unit 34 determines whether or not room information has been received, and if the determination is affirmed, the process proceeds to step 202, and if not, the process proceeds to step 204.

  In step 202, the room information acquisition unit 38 acquires room information, stores the acquired room information in the individual data storage unit 46, and shifts to step 204.

  In step 204, the power consumption, operating time, operating mode, and set temperature of each air conditioning device during unit time transmitted from the HEMS 12 are stored in the individual data storage unit 46 as air conditioning operating result information, and the process proceeds to step 206 .

  In step 206, the average outdoor air temperature, the average amount of solar radiation, and the average indoor air temperature during the operation time of each air conditioner 20 transmitted from the HEMS 12 are stored in the individual data storage unit 46 as environmental performance information, and the process proceeds to step 208 .

  In step 208, the cooling and heating load calculation unit 36 performs cooling load calculation processing, and the process proceeds to step 210. Details of the cooling load calculation process will be described later.

  In step 210, the operation efficiency calculation unit 40 calculates the operation efficiency (heating / cooling load / power consumption), stores it in the individual data storage unit 46 as cooling / heating efficiency information, and ends the series of information acquisition processing.

  FIG. 6 is a flowchart showing an example of the heating and cooling load calculation process performed by the HEMS center 14 of the cooling and heating device selection support system 10 according to the present embodiment.

  In step 250, the cooling and heating load calculation unit 36 extracts environmental performance information during the operation time of the cooling and heating device 20 in unit time from the environmental performance information stored in the individual data storage unit 46, and proceeds to step 252.

  In step 252, the heating and cooling load calculation unit 36 extracts room information of the room in which the heating and cooling device 20 is installed from the room information stored in the individual data storage unit 46, and proceeds to step 254.

  In step 254, the heating and cooling load calculation unit 36 calculates the heating and cooling load during the operation time of the heating and cooling device 20 in unit time, and shifts to step 256. In addition, calculation of an air conditioning load may be calculated only using air-conditioning operation performance information, and you may calculate using air-conditioning operation performance information and environmental performance information like the following calculation methods.

  In step 256, the heating and cooling load calculation unit 36 stores the calculation result of the cooling and heating load in the individual data storage unit 46 as cooling and heating load result information, and the series of heating and cooling load calculation processing ends.

  Here, the calculation method of the heating and cooling load by the heating and cooling load calculation unit 36 will be specifically described. FIG. 7A is a diagram for explaining the calculation of the heating and cooling load at the time of cooling, and FIG. 7B is a diagram for explaining the calculation of the heating and cooling load at the time of heating.

  The cooling and heating load at the time of cooling is obtained by calculating the amount of heat removed from the room at the time of cooling.

  The heat removal amount is the sum of the total through-flow heat amount, the total ventilation heat amount, the total solar radiation amount, and the heat amounts of other heat sources (total through-flow heat amount = total ventilation heat amount + total solar radiation amount + other heat source heat amount). The other heat source heat quantity is added only when it exists.

  The total through-flow heat quantity at the time of cooling is obtained from the through-flow heat quantity of each of the window (opening), the outer wall, the roof and ceiling, the inner wall, and the floor shown in FIG.

Specifically, the amount of through-flow heat of the window (opening) is the amount of through-flow heat (W) = window area of the corresponding room (m ² ) × heat transmissivity (window) (W / m ² K) × indoor / outdoor temperature difference Calculated by (K).

The amount of solar radiation heat of the window (opening) is determined by the following equation: solar radiation heat amount (W) = window area of the room (m ² ) × solar radiation amount (W / m ² ) × cutoff coefficient × azimuth coefficient.

The amount of through-flow heat of the outer wall is determined by the amount of through-flow heat (W) = area of the portion in contact with the outer wall (m ² ) × heat transmissivity (outer wall) (W / m ² K) × temperature difference inside and outside the room (K).

The amount of through-flow heat of the roof and the ceiling is determined by the amount of through-flow heat (W) = area in contact with the roof (m ² ) × heat transmissivity (roof) (W / m ² K) × indoor / outdoor temperature difference (K).

The amount of through-flow heat of the inner wall is determined by the amount of through-flow heat (W) = the area of the inner wall (m ² ) × the heat transmission coefficient (inner wall) (W / m ² K) × the temperature difference with the adjacent chamber (K).

The amount of through-flow heat of the bed is determined by the amount of through-flow heat (W) = the area of the bed (m ² ) × the heat transmission coefficient (bed) (W / m ² K) × the temperature difference with the adjacent chamber (K).

The amount of heat of ventilation is obtained from the amount of heat of ventilation (W) = C _p × Y × the amount of ventilation (m ³ ) × the temperature difference inside and outside the room (K). Here, C _p = constant pressure specific heat of air (W / kg K), Y = weight of air specific weight (kg / m ³ ).

  Other heat sources may be added as needed. Other heat sources include, for example, lighting load, human body load, house equipment load, heat storage load, heat flow between rooms, and heat transfer due to door opening and closing. Moreover, the physical quantity regarding environment, such as a temperature difference and the amount of solar radiation used at the time of heat removal calculation, uses the average value per unit time, such as 1 hour, for example.

  On the other hand, the heating and cooling load at the time of heating is obtained by calculating the amount of heat inflowing at the time of heating.

  The amount of heat inflow is the sum of the amount of total heat of throughflow and the total amount of heat of ventilation, minus the total amount of solar radiation, the amount of heat from auxiliary heating, and the amount of heat from other heat sources Amount-heat from auxiliary heating-other heat source heat). In addition, other heat source heat quantity is deducted only when it exists.

  The total through-flow heat quantity at the time of heating is determined from the through-flow heat quantity of each of the window (opening), the outer wall, the roof and ceiling, the inner wall, and the floor shown in FIG. 7 (B).

Specifically, the amount of through-flow heat of the window (opening) is the amount of through-flow heat (W) = window area of the corresponding room (m ² ) × heat transmissivity (window) (W / m ² K) × indoor / outdoor temperature difference Calculated by (K).

The amount of solar radiation heat of the window (opening) is obtained by the following equation: solar radiation heat amount (W) = window area of the room (m ² ) × solar radiation amount (W / m ² ) × block coefficient × direction coefficient.

The amount of through-flow heat of the outer wall is determined by the amount of through-flow heat (W) = area of the portion in contact with the outer wall (m ² ) × heat transmissivity (outer wall) (W / m ² K) × temperature difference inside and outside the room (K).

The amount of through-flow heat of the roof and the ceiling is determined by the amount of through-flow heat (W) = area in contact with the roof (m ² ) × heat transmissivity (roof) (W / m ² K) × indoor / outdoor temperature difference (K).

The amount of through-flow heat of the inner wall is determined by the amount of through-flow heat (W) = the area of the inner wall (m ² ) × the heat transmission coefficient (inner wall) (W / m ² K) × the temperature difference with the adjacent chamber (K).

The amount of through-flow heat of the bed is determined by the amount of through-flow heat (W) = the area of the bed (m ² ) × the heat transmission coefficient (bed) (W / m ² K) × the temperature difference with the adjacent chamber (K).

The amount of heat of ventilation is obtained from the amount of heat of ventilation (W) = C _p × Y × the amount of ventilation (m ³ ) × the temperature difference inside and outside the room (K). Here, C _p = constant pressure specific heat of air (W / kg K), Y = weight of air specific weight (kg / m ³ ).

  The heat amount of the auxiliary heating is determined by the auxiliary heating heat amount (W) = auxiliary heating consumption energy × energy conversion efficiency.

  Other heat sources may be added as needed. Other heat sources include, for example, lighting load, human body load, house equipment load, heat storage load, heat flow between rooms, and heat transfer due to door opening and closing. Moreover, the physical quantity regarding environment, such as a temperature difference and the amount of solar radiation used at the time of inflow heat amount calculation, uses the average value per unit time, such as 1 hour, for example.

  FIG. 8 is a flowchart showing an example of the classification / statistics process performed by the HEMS center 14 of the air conditioning device selection support system 10 according to the present embodiment. The process of FIG. 8 starts, for example, every predetermined period (every day, every week, and so on).

  In step 300, the data statistical processing unit 42 classifies the room information stored in the individual data storage unit 46 into predetermined categories such as area and room attribute information, and shifts to step 302.

  In step 302, the data statistics processing unit 42 calculates the necessary and sufficient cooling and heating performance classified by classification, and shifts to step 304.

  In step 304, the data statistical processing unit records the calculation result in the statistical data recording unit 50 as classified statistical data, and ends the series of classification / statistical processing.

  The classification / statistical process is classified, for example, as a room attribute information, based on an average skin heat transfer coefficient (hereinafter, referred to as a UA value). In this case, the outer skin (portion in contact with the air) and the endothelium (portion in contact with other rooms) are divided and combined and classified. As a simplified version, the UA value may be determined and classified without being divided into the shell and the endothelium.

  As statistical data, the necessary heating and cooling performance is provided for each surface area for each UA value. FIG. 9 shows an example in which statistical data is classified into categories by room attribute information.

  As the necessary and sufficient air conditioning performance, for example, as shown in FIG. 10, among the cooling load record information stored in the individual data storage unit 46, one corresponding to the category is extracted. Then, the number of appearances for each heating and cooling load is determined, and the heating and cooling load covering a predetermined ratio such as 90% of the number of appearances is calculated as the necessary and sufficient heating and cooling performance. In addition, FIG. 10 is a figure for demonstrating an example of the calculation method of air conditioning performance required and sufficient.

  FIG. 11 is a flowchart showing an example of the device selection support process performed by the HEMS center 14 of the cooling and heating device selection support system 10 according to the present embodiment. The process in FIG. 11 starts, for example, when a request for cooling / heating device selection support is made from the user along with the above-described room information input process using the HEMS application 13 or the portable terminal 15 or the like.

  In step 350, the air conditioning and heating equipment proposal processing unit 44 calculates the UA value of the room from the room information of the air conditioning and heating equipment 20 to be selected, and proceeds to step 352. For example, the same process as the above-described room information input process is performed to input room information of the air conditioner 20 as a selection target.

  In step 352, the air conditioning device proposal processing unit 44 determines whether there is classified statistical data of the UA value similar to the room information. For example, it is determined whether there is classification statistical data having similar room information within a predetermined range, and if the determination is affirmed, the process proceeds to step 354. If not, the process proceeds to step 356. .

  At step 354, the air conditioning device proposal processing unit 44 extracts corresponding classified statistical data, and proceeds to step 362.

  On the other hand, at step 356, the air conditioning and heating equipment proposal processing unit 44 calculates the average temperature of the area based on the information stored in the individual data storage unit 46, and proceeds to step 358.

  In step 358, the air conditioning equipment proposal processing unit 44 determines whether there is classified statistical data of similar UA values in the neighborhood area similar to the calculated average temperature. For example, it is determined whether or not there is classified statistical data of classified UA value of the area of the average temperature within the predetermined range, and if the determination is affirmed, the process proceeds to step 354 described above, and if it is denied Transfer to step 360.

  In step 360, the air conditioning and heating device proposal processing unit 44 extracts classified statistical data of UA values that are similar throughout the country, and proceeds to step 362.

  In step 362, the air conditioning and heating equipment proposal processing unit 44 extracts the air conditioning and heating equipment 20 having necessary and sufficient air conditioning and heating performance of the classified statistical data from the plurality of commercially available air conditioning and heating equipment information stored in the air conditioning and heating equipment database 48. Transition.

  In step 364, the air conditioning and heating equipment proposal processing unit 44 transmits the extracted air conditioning and heating equipment list to the request source, and ends the series of equipment selection support processing. For example, it transmits to the HEMS application 13 (computer, HEMS display terminal 16 grade | etc.,) Of a request origin, and the portable terminal 15 so that information, such as average driving efficiency and average power consumption of the extracted air conditioning equipment, is displayed as a list. This makes it possible to select an appropriate heating and cooling device that matches the characteristics of the room.

  In the above embodiment, the necessary heating and cooling performance is calculated based on the information on similar rooms from the stored information of the HEMS center 14, and the corresponding heating and cooling equipment is selected. Preference may be added to the selection conditions. For example, the behavior and preference information (frequency of use of cooling and heating, heat and cold information, etc.) are input to the HEMS application 13 and the portable terminal 15, and the HEMS center 14 cools and heats the equipment 20 according to the behavior and preferences. You may choose.

  Further, each process performed by the HEMS 12 or the HEMS center 14 in the above embodiment may be stored as a program in a storage medium or the like and distributed.

  Further, the present invention is not limited to the above, and it goes without saying that the present invention can be variously modified and implemented without departing from the scope of the invention other than the above.

10 air conditioning equipment selection support system 12 HEMS
13 HEMS application 14 HEMS center 15 Mobile terminal 16 HEMS display terminal 18 Distribution board 20 Air conditioner 22 Indoor environment sensor 24 Outdoor environment sensor 28 HEMS information collection unit 30 Room information input unit 32 Individual data processing unit 34 HEMS information acquisition unit 42 Data Statistical processing unit 44 Air conditioning equipment proposal processing unit 46 Individual data storage unit

Claims (3)

It stores area information of each of a plurality of buildings, environmental performance information of each room of the plurality of buildings, room information related to heat in and out of each room, and operation performance information of air conditioners provided in each room A storage unit,
An acquisition unit for acquiring area information of a target room to be selected for the air conditioning and heating equipment and the room information of the target room;
A calculation unit that extracts the operation performance information of the room stored in the storage unit similar to the area information of the target room acquired by the acquisition unit and each of the room information, and calculates an air conditioning performance necessary for air conditioning and heating When,
A selection unit that selects an air conditioning device suitable for the target room from among a plurality of air conditioning devices commercially available based on the calculation result of the calculation unit;
Air-conditioning equipment selection support system equipped with   The cooling / heating device selection support system according to claim 1, further comprising a terminal device for inputting area information of the target room and the room information of the target room, and the selection unit transmits a selection result to the terminal device. The cooling and heating equipment selection support according to claim 1 or 2, further comprising: a collection unit provided in each of the plurality of buildings and collecting the environment performance information and the operation performance information to be stored in the storage unit. system.

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