JP2006185340A - Method and system for supporting procurement of fuel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize a method for supporting procurement of fuel which is more suitable to support work for procuring fuel for a power generating unit. <P>SOLUTION: The method for supporting the procurement of fuel comprises: a process in which a common network server 10 receives a command to purchase fuel through a network 12 (S101); a process in which a fuel selecting means 26 uses a database in which a plurality of types of fuels A to D and the evaluation factor of each fuel are described in response to the purchase command to calculate an overall evaluation corresponding to fuel cost for each fuel (S102); and a process in which the fuel selecting means 26 selects an optimum fuel B among the plurality of types of fuels A to D by collating each overall evaluation with a setting standard (S103). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method and system for supporting a work for procuring fuel for a power generation facility.

  2. Description of the Related Art Known power generation facilities are those that generate power by driving a gas turbine with fuel combustion gas, or generate steam by generating steam and drive the steam turbine to provide the power to customers.

  As a system for procuring fuel for such power generation facilities, by calculating the amount of fuel procured based on the amount of heat generated by the fuel, the unit price, and the demand for power according to the fuel purchase command received via the network In order to reduce the work burden on procurement personnel (see, for example, Patent Document 1).

JP 2004-171450 A

  By the way, the fuel cost of the power generation equipment fluctuates due to various factors such as the social situation of the supplier, insurance premiums generated at the time of procurement, environmental countermeasure costs, etc., in addition to the calorific value and unit price of the fuel. Therefore, in order to suppress the fuel cost comprehensively, it is required to procure fuel in consideration of such various factors. However, the method as disclosed in Patent Document 1 does not consider covering such factors, and fuel is procured by relying on the empirical rules and intuitions of procurement personnel, which increases fuel costs. There is a case.

  In addition, power generation facilities that are compatible with multiple types of fuel are being developed. As the number of types of fuel increases, the factors that must be considered to reduce fuel costs further increase. Therefore, it is assumed that the operation of selecting the optimum fuel becomes more complicated and sometimes the fuel cost increases.

  An object of the present invention is to realize a fuel procurement support method and a fuel procurement support system that are more suitable for supporting the work of procuring fuel for power generation equipment.

  In order to solve the above problems, a fuel procurement support method according to the present invention includes a step of receiving a fuel purchase instruction via a network, and a database describing a plurality of types of fuel and evaluation factors for each fuel according to the purchase instruction. And a step of calculating a comprehensive evaluation corresponding to the fuel cost for each fuel, and a step of selecting one fuel from a plurality of types of fuel by comparing each comprehensive evaluation with a set standard. .

  According to this, the calculated comprehensive evaluation becomes an objective judgment index in which an evaluation factor affecting the fuel cost is quantitatively taken into consideration. Therefore, the most reasonable fuel at the time of procurement can be accurately and easily selected by checking the overall evaluation against the setting standard and selecting, for example, the fuel that best meets the setting standard. In short, by selecting the optimum fuel and reducing the running cost, the power generation cost can be reduced as a result.

  The evaluation factors here include, for example, power generation costs required for refining fuel, plant thermal efficiency, which is the ratio of output energy to input energy of power generation equipment, fuel unit price, environmental measures costs for controlling harmful substances, suppliers This is the insurance situation when procuring fuel. Further, other factors such as the heat generation amount of the fuel, the season and weather of the supplier, and foreign currency exchange may be added.

  In this case, when the number of evaluation factors increases or the evaluation factors are variable factors that change over time, the factors are imported via the network at set time intervals, and the database is evaluated based on the acquired factors. Factors can be updated in real time. Thereby, even if the evaluation factor affecting the fuel cost changes, the optimum fuel can be selected following the change.

  In addition, a fuel ordering command can be output to the network to the selected fuel supplier. This simplifies the fuel ordering operation and improves usability.

  In addition, a storage unit that stores fuel-related information is attached to the fuel transport container, and fuel information read from the storage unit can be acquired via a network. Here, the fuel-related information includes, for example, fuel mining date, scheduled delivery date, management number, schedule from excavation to procurement, and the like. Thereby, the fuel procurement source can confirm information on the fuel from a remote location via the network. Therefore, procurement work can be performed accurately and easily, such as reducing the number of fuel orders.

  Further, a notification means for notifying the position of the fuel container with the radio wave of the satellite can be attached to the fuel container, and the position of the container can be acquired via the satellite and the network. As a result, the fuel transportation process from the supplier to the supplier can be tracked at any time, so that it is possible to more accurately and easily manage the delivery date of the fuel and the order timing.

  In addition, the fuel procurement support system of the present invention corresponds to the fuel cost based on the database evaluation factor according to the database describing a plurality of types of fuels and the evaluation factors of each fuel and the fuel purchase instruction received via the network. Comprehensive evaluation for each fuel is calculated, and each comprehensive evaluation is collated with a setting standard to select one fuel from a plurality of types of fuel.

  ADVANTAGE OF THE INVENTION According to this invention, the more suitable fuel procurement assistance method and fuel procurement assistance system which support the operation | work which procures the fuel of power generation equipment are realizable.

(First embodiment)
A first embodiment of a fuel procurement support method and a fuel procurement support system to which the present invention is applied will be described with reference to the drawings. FIG. 1 is an overall view of the fuel procurement support system of the present embodiment. FIG. 2 is a configuration diagram of the fuel procurement support system of the present embodiment.

  The fuel procurement support system 1 supports an operation of procuring fuel for a power generation facility having a gas turbine or a steam turbine using an IT (Information Technology) tool. As shown in FIGS. 1 and 2, the fuel procurement support system 1 includes a server (hereinafter referred to as a common network server 10) that selects and orders an optimal fuel from a plurality of types of fuel. The common network server 10 is connected to a plurality of terminals via a network 12 such as the Internet. As the plurality of terminals, for example, a terminal 14a of a fuel mining site 14, a terminal 16a of a power plant 16 equipped with power generation facilities, for example, a terminal 18a of a fuel supply company 18 that is an oil company, a terminal 20a of an insurance company 20, etc. is there. Further, a monitoring terminal 22 a of a fuel management department 22 engaged in fuel procurement is connected to the common network server 10.

  Each terminal 14a to 22a may be configured by a personal computer (PC). Moreover, a means for inputting an evaluation factor for transmission to the common network server 10 may be provided, or a database for transmitting the evaluation factor at a predetermined time interval may be provided.

  As shown in FIG. 2, the fuel procurement support system 1 according to the present invention includes a database 24 in which a plurality of types of fuels and evaluation factors for each fuel are described, and a plurality of fuel purchase instructions received via the network 12. And a fuel selection means 26 for selecting an optimum fuel from the types of fuels. In short, the fuel procurement support system 1 determines the optimum fuel in consideration of various evaluation factors that affect the fuel cost.

  Further, the fuel procurement support system 1 will be described. As shown in FIG. 2, the common network server 10 is connected to the monitoring terminal 22a via a local area network (hereinafter, LAN 28). The monitoring terminal 22a browses and takes in the fuel price information and management information stored in the common network server 10. However, remote monitoring may be performed by connecting the monitoring terminal 22a to the common network server 10 via the Internet or the like instead of the LAN 28.

  The common network server 10 includes network interface means (hereinafter referred to as NI means 30) for sending and receiving commands via the LAN 28, a database 24, a fuel selection means 26, a weighting coefficient giving means 32, and a fuel ordering means 34. Connection is made via an internal bus 36. The database 24 arranges fuel evaluation factors taken in by the NI means 30 in association with each fuel.

  The fuel selection means 26 calculates a comprehensive evaluation corresponding to the fuel cost for each fuel based on the evaluation factor of the database 24, and selects the optimum fuel from a plurality of types of fuels by collating each calculated comprehensive evaluation with a set standard. To do. The fuel selection means 26 is configured as a control program and can be realized by being mounted on, for example, a DSP (Digital Signal Processor). Further, a control program as the fuel selection means 26 may be stored in a memory, and the calculation function of the central processing unit (CPU) may be used.

  The weighting coefficient giving unit 32 gives a predetermined weighting coefficient to the fuel selection unit 26. The fuel ordering unit 34 generates a fuel ordering command in accordance with the command output from the fuel selection unit 26 and outputs the fuel ordering command to the NI unit 30.

  In the fuel procurement support system 1 configured as described above, a fuel purchase command is transmitted from the monitoring terminal 22a. The transmitted purchase command is received by the common network server 10 via the LAN 28. In accordance with the received purchase command, the fuel selection means 26 calculates a comprehensive evaluation corresponding to the fuel cost for each fuel, using the database 24 describing a plurality of types of fuel and evaluation factors for each fuel. The fuel selection means 26 selects the optimum fuel from a plurality of types of fuel by comparing the calculated overall evaluations with the setting criteria. A fuel order command is transmitted via the network 12 by the fuel ordering means 34 to the selected fuel supplier. Fuel is extracted from the mining site 14 according to the ordering command. The mined fuel is transported and then stored in a fuel tank 17 in the power plant 16.

  In more detail, the fuel procurement support method of the present embodiment will be described with reference to FIGS. FIG. 3 is a flowchart showing each step of the fuel procurement support method. FIG. 4 is an example of a management screen displayed on the monitoring terminal 22a.

  As a preparation process before the process of FIG. 3 is executed, there is a process of constructing the database 24. The database 24 is constructed by taking in evaluation factors transmitted from the terminals 14a to 22a. The evaluation factor here is taken in at a set time interval (for example, once a month). The set time interval can be changed as appropriate, and may be matched with the timing for selecting the optimum fuel or may be different. The evaluation factors that are taken into the database 24 will be described below. In addition, when an evaluation factor is newly taken in the already constructed database 24, the database 24 is updated based on the evaluation factor.

<< Evaluation factors input from mining site 14 >>
The terminal 14a of the mining site 14 transmits evaluation factors such as fuel unit price, personnel cost, transportation cost, and social situation to the common network server 10 via the network 12. The transmitted evaluation factors are taken in by the NI means 30 and then arranged in the database 24. The arranged evaluation factors are associated with, for example, fuel mined from the mining site 14. Here, the fuel mined from the mining site 14 is generally used for power generation facilities such as heavy oil, light oil, natural gas, DME (diethyl ether), and the like. Labor costs and transportation costs are calculated instantaneously by multiplying the unit cost per hour of local instructors, workers, and administrative department staff by the time required for excavation and transportation. Further, the actual labor cost and transportation cost may be accumulated in the database 24, and the estimated amount may be calculated based on the accumulated personnel cost and transportation cost. The transportation cost is a cost for transportation means such as a tank lorry, a ship, and a train for transportation from the mining site 14 such as overseas to the power plant 16. The social situation is the degree of danger caused by terrorism, etc., and a numerical table published by a public institution or a numerical table determined in-house may be used. Thus, the evaluation factor input from the mining site 14 is a factor that varies depending on market factors.

<< Evaluation factors input from power plant 16 >>
The terminal 16a of the power plant 16 transmits evaluation factors such as power generation cost, plant thermal efficiency, and environmental countermeasure cost to the common network server 10 via the network 12 based on past performance data. The transmitted evaluation factor is stored in the database 24. Here, the power generation cost is the fuel refining cost and storage cost. Plant thermal efficiency is the ratio of output energy to input energy of a gas turbine or steam turbine. The cost of environmental measures is the cost of environmental equipment (for example, filter equipment) that suppresses harmful substances such as sulfur oxide (SOx) and nitrogen oxide (NOx) generated when fuel is burned within the specified value. It is the cost for driving. These costs can be compared with high accuracy by automatically reading past plant data stored in the database 24 in advance or data of similar plants. It is also possible to provide the terminal 16a with a database, store evaluation factors in the database, and automatically transmit the stored evaluation factors to the common network server 10 at set time intervals.

<< Evaluation factors input from fuel supplier 18 >>
When purchasing fuel from a fuel supply company 18, which is an oil company, the terminal 18 a of the fuel supply company 18 transmits the fuel unit price to the common network server 10 via the network 12. The transmitted fuel unit price is stored in the database 24.

<< Evaluation factors input from insurance company 20 >>
The terminal 20 a of the insurance company 20 transmits the insurance premium to the common network server 10 via the network 12. The transmitted insurance premium is stored in the database 24. The premium is the cost paid to the insurance company 20 in order to prevent risks such as accidents when a series of processes from fuel extraction to fuel supply such as storage, refining, and transportation are carried out by the company or its affiliates. is there. The insurance premium is automatically input periodically from the insurance company to the common network server 10, so that the insurance premium can be estimated and paid quickly.

  The processing of FIG. 3 is executed using the database 24 constructed or updated in this way.

<Reception of fuel purchase command (S101)>
When the fuel purchase command is input to the monitoring terminal 22a, the input purchase command is received by the fuel selection means 26 of the common network server 10. The purchase command here is in accordance with a format predetermined as a fuel purchase specification. Instead of inputting the purchase command, for example, the command may be automatically transmitted according to the detected value of the storage amount of the fuel tank 17.

<Comprehensive evaluation calculation corresponding to fuel cost (S102)>
In accordance with the fuel purchase command in step S101, the fuel selection means 26 automatically calculates a comprehensive evaluation corresponding to the fuel cost. For example, an evaluation factor is extracted from the database 24 for each fuel, and a weighting factor is given from the weighting factor assigning unit 32 to the fuel selecting unit 26. Based on the evaluation factor and the weighting coefficient, determination data is calculated by a predetermined procedure. A comprehensive evaluation of each fuel is determined based on the calculated determination data. The determined comprehensive evaluation can be referred to as shared data via the network 12.

Formula 1 is an example of a determination data calculation procedure. Since power is a lifeline, importance is high in the order of stable power supply, cost reduction, and environmental measures. Therefore, in Equation 1, a multiplier “3” as a weighting factor is assigned to each of the plant thermal efficiency and the social situation, which are evaluation factors that affect the stable supply of electric power. Further, a multiplier “2” as a weighting factor is assigned to the power generation cost that affects the cost reduction. Then, by multiplying each evaluation factor, determination data as a basis for comprehensive evaluation is calculated. However, the weighting coefficient may be changed according to the priority order required by the person in charge of procurement or the customer.

(Formula 1)
Judgment data = (Power generation cost) ² x (Plant thermal efficiency) ³ x (Fuel unit price) x (Environmental costs) x (Social situation) ³ x (Insurance premium)

<Selection of optimum fuel (S103)>
A comprehensive evaluation of each fuel is obtained from the determination data of the process in S102, and the optimal fuel is automatically selected from a plurality of types of fuel by comparing each comprehensive evaluation with a set standard. For example, as shown in FIG. 4, when determining four types of fuels A to D that can be used by the gas turbine of the power generation facility, the fuel A is set as the reference fuel. Then, based on the determination data of fuel A calculated in S102, the determination data of fuels B, C, and D are relatively compared to obtain a comprehensive evaluation of each fuel. In the case of FIG. 4, it is determined that the overall evaluation is higher in the order of fuel B, fuel A, fuel C, and fuel D. In short, fuel B is selected as the optimum fuel. The optimal fuel here is the most reasonable fuel for operating the power plant 16 and supplying power to the customer. In this step, the relative evaluation has been described with reference to the fuel A, but various methods such as collation with a predetermined criterion can be applied to the evaluation method.

<Ordering optimal fuel (S104)>
A fuel order command is transmitted to the optimal fuel supplier selected in S103. More specifically, a fuel ordering command is generated by the fuel ordering unit 34 in response to an optimal fuel selection command. The generated ordering command is transmitted from the fuel ordering means 34 to the terminal 14a of the mining site 14 via the network 12. This process simplifies the fuel ordering process, improving usability. Here, the mining site 14 is a fuel mining site selected as the optimum one.

<Delivery of optimal fuel (S105)>
The optimum fuel is delivered in response to the ordering command for the process in S104. For example, the optimum fuel is transported from the mining site 14 to the power plant 16 via transportation. The transported optimal fuel is stored in the fuel tank 17.

  According to such a fuel procurement support system 1 of the present embodiment, the comprehensive evaluation obtained by the fuel selection means 26 becomes an objective judgment index in which evaluation factors that affect the fuel cost are quantitatively taken into consideration. Therefore, the most reasonable fuel at the time of procurement can be accurately and easily selected by checking the overall evaluation against the setting standard and selecting, for example, the fuel that best meets the setting standard. That is, by selecting the optimal fuel and suppressing the running cost, the power generation cost can be reduced as a result.

  As the evaluation factors of the database 24, in addition to the factors described in S100, other factors such as the calorific value of the fuel, the season and weather of the mining site 14, and foreign currency exchange can be added.

  A supplementary description of the display screen of FIG. As shown in FIG. 4, the optimum fuel determination management screen is displayed on the terminal 22a of the fuel management department 22. For example, power generation cost, plant thermal efficiency, fuel unit price, environmental measure cost, social situation, insurance premium, comprehensive evaluation, evaluation result, and other special notes corresponding to each of the four types of fuels A to D are displayed. . The fuels A and B here can be procured in-house, and the fuels C and D are procured from other companies. The evaluation result in the display screen is a mark indicating the optimum fuel determined based on the comprehensive evaluation. Other special notes are supplementary items such as the weather and season of the mining site, or political conditions. In addition, a display area is provided in which a calculation formula for determination data that is a basis for comprehensive evaluation is displayed.

  FIG. 5 is a time chart showing the fuel procurement of this embodiment in time series. For convenience, an example of using and supplementing four types of fuels A to D will be described. A fuel tank 17a for storing fuel A is provided. Similarly, a fuel tank 17b corresponding to the fuel B, a fuel tank 17c corresponding to the fuel C, and a fuel tank 17d corresponding to the fuel D are provided. The fuel tanks 17a to 17d are assumed to have a capacity sufficient to store fuel used by the power generation facility for two months, for example.

  When the power generation facility of the power plant 16 is started, the evaluation factor is acquired in the common network server 10. Based on the obtained evaluation factor, fuel D is selected as the optimum fuel for the current month. Here, the optimum fuel is the most reasonable fuel for supplying power to the customer. For example, the optimum fuel is a fuel that can maintain a stable power supply or a fuel that has the lowest fuel cost. The selected fuel D starts to be used in the power generation facility, and an ordering command for the fuel D is transmitted from the common network server 10 to the mining site 14 via the network 12. For example, when the procurement amount of the fuel D is two months from ordering to storage in the fuel tank 17d, it corresponds to the amount of fuel used by the power generation facility for two months. When the fuel D is delivered, the fuel tank 17d is replenished.

  One month after the start of operation of the power generation facility, the evaluation factor is acquired again in the common network server 10. Based on the obtained evaluation factor, fuel A is selected as the optimum fuel. The selected fuel A starts to be used in the power generation facility, and an ordering instruction for the fuel A is transmitted from the common network server 10 to the mining site via the network 12. When the fuel A is delivered, the fuel tank 17a is replenished. Similarly, two months after the start of the power generation facility, the use of the fuel A and the procurement of the fuel A are started by selecting the fuel A. After three months, the use of fuel A and the procurement of fuel A are started by selecting fuel A. After four months, use of fuel C and procurement of fuel C are started by selecting fuel C.

  As can be seen from FIG. 5, even when the evaluation factor affecting the fuel cost changes, the optimum fuel at the time when the fuel should be procured can be selected flexibly. For example, when the number of evaluation factors to be considered in the procurement of fuel is added, or when the evaluation factor is a variation factor that changes with the passage of time, the factor is taken in at a set time interval via the network 12 and taken in. The evaluation factor of the database 24 can be changed in real time based on the factor.

  Further, as can be seen from FIG. 5, each of the fuel tanks 17 a to 17 d always stores fuel for, for example, two months or more necessary for continuously operating the power generation facility. Thereby, when the fuel which should be used for power generation equipment is selected, the exhaustion of the fuel can be avoided. In short, it is possible to select the optimum fuel at the time of procurement, and to minimize the inventory by procuring the required amount of fuel in the required amount in a timely manner.

  In addition, although this invention was demonstrated from 1st embodiment, it is not restricted to this. For example, an estimate issuing means may be provided instead of or together with the fuel ordering means 34. The estimate issuing means returns the estimated amount of the optimum fuel selected by the fuel selecting means 26 to the monitoring terminal 22a in response to a command from the monitoring terminal 22a.

(Second embodiment)
A second embodiment of the fuel procurement support method and fuel procurement support system to which the present invention is applied will be described with reference to FIG. The present embodiment is different from the first embodiment in that in addition to selecting the optimum fuel, the fuel delivery date management and the order timing management are supported. Therefore, portions corresponding to those of the first embodiment are denoted by the same reference numerals, and different points will be mainly described.

  FIG. 6 is a diagram illustrating a series of processes from fuel mining to power supply according to the present embodiment. This figure shows a case where a series of processes from mining to storage of a new fuel, for example, DME (diethyl ether) is performed in-house or an affiliated company, but is not limited thereto.

  As shown in FIG. 6, the series of processes includes a mining step S200 for mining fuel at a mining site, a primary transport step S201 for transporting the mined fuel by a ship, and storing the primary transported fuel in a storage facility. Together with a primary storage manufacturing process S202 for performing a purification process by a manufacturing facility, a secondary transport process S203 for transporting the purified fuel by a vehicle, and a secondary storage process S204 for storing the transported fuel in a fuel tank or the like, It consists of a power generation step S205 for generating electric power from the power generation facility using stored fuel, a power selling step S206 for providing electric power to customers, and the like.

  Further, a common network server 10 is connected to a predetermined terminal in each process via a network 12. The predetermined terminals are, for example, the terminal of the mining process S200, the terminal of the primary transport process S201, the terminal of the primary storage manufacturing process S202, the terminal of the secondary transport process S203, and the terminal of the secondary storage process S204. . A monitoring terminal 22 a is connected to the common network server 10 via the LAN 28.

  Further, the fuel from the mining step S200 to the secondary storage step S204 is packed in, for example, a drum can as a transport container. The drum can is attached with an IC chip as a storage means for storing information on fuel. The information on the fuel here is, for example, the mining date, scheduled delivery date, management number, and schedule of the mining process S200 to the secondary storage process S204 of the fuel packed in the drum. The IC chip has a GPS (Global Positioning System) function as notification means for notifying its own position by radio waves from an artificial satellite. However, a device having a GPS function may be attached to the drum can separately from the IC chip. As the IC chip, for example, a μ chip (registered trademark) specialized for a data reading function can be used.

  In such a process, when a purchase command is transmitted from the monitoring terminal 22a, for example, DME is selected as the optimum fuel by the common network server 10 in accordance with the purchase command. When it is determined that the selected optimum fuel is a fuel that can be arranged and procured collectively by the company or an affiliated company, an ordering command corresponding to the purchase specification is transmitted from the common network server 10 to the terminal of the mining process S200. The order quantity is, for example, an amount corresponding to the fuel used for one month in the power generation process S205.

  In response to the ordering command, a required amount of fuel is mined in the mining step S200. The mined fuel is conveyed to the power generation step S205 via the primary transport step S201 to the secondary storage step S204. When DME is selected as the fuel, DME can be manufactured in the primary storage manufacturing step S202 because it is relatively easier to manufacture than petroleum, natural gas (LNG), coal, or the like.

  In each process from the mining process S201 to the secondary storage process S204, the information of the IC chip is read by the reading device. For example, in the mining process S200, when the fuel is packed in the drum can, the information on the IC chip is read by the IC reader and input to the terminal. In the primary transport process S201, when the ship enters the port, information on the IC chip is read and input to the terminal. The same applies basically to the primary storage manufacturing process S202, the secondary transport process S203, and the secondary storage process S204. Information read in each process is transmitted from the terminal in each process to the common network server 10 via the network 12. The transmitted information is stored in the common network server 10.

  According to this, by monitoring the common network server 10 from the monitoring terminal 22a, it is possible to confirm information relating to fuel in each process at a remote location. As a result, procurement work can be performed accurately and easily, such as reducing the number of fuel orders. Instead of the IC chip, other storage means such as a barcode may be used.

  In each process from the mining process S201 to the secondary storage process S204, the radio wave of the artificial satellite 40 is read by the IC chip. The position of the IC chip is specified by the ground base station of the artificial satellite 40 based on the read radio wave. The identified IC chip position is transmitted as a drum can position from the ground base station to the common network server 10 via the network 12. The transmitted position of the drum can is stored in the common network server 10.

  According to this, by monitoring the common network server 10 from the monitoring terminal 22a, it is possible to track the fuel transportation process from the procurement source (for example, the mining process S200) to the procurement source (for example, the secondary storage process S204) as needed. . Therefore, it is possible to more accurately and easily manage the fuel delivery date and the order time. In short, since the current position of the fuel to be procured can be accurately recognized, it is possible to quickly respond to an unexpected accident (for example, the occurrence of a disaster). Instead of notifying the common network 10 of the position of the drum can from the ground base station, the monitoring terminal 22a may be notified directly.

  In short, according to the second embodiment, real-time information from the mining site and data such as the current position in the transportation process can be centrally managed by the fuel procurement support system 1. Thereby, misidentification between each process or between each department can be prevented beforehand.

  Here, the effect of the fuel procurement support system 1 of the first and second embodiments will be supplementarily described. In many cases, businesses that have supplied power generation equipment to electric power companies will newly enter the power sales business in response to the relaxation of power regulations. Such business operators have little experience in the power generation business, so it is difficult to perform operations such as fuel procurement, power generation facility construction, operation, and maintenance. In this respect, according to the present embodiment, the fuel procurement support system 1 can smoothly implement the power generation business regardless of the experience of the power generation business.

  Further, the ratio of the fuel cost to the power generation cost reaches, for example, 60%. Therefore, it is important to reduce the fuel unit price and fuel procurement costs. However, since most of the fuel in the fuel tank is a raw material cost, that is, a fixed cost, it is difficult to reduce the fuel cost. In this regard, according to the present embodiment, since the fuel cost is reduced by the fuel procurement support system 1, the unit price of the electric power sold to the customer is also reduced. Therefore, customers (for example, ordinary citizens and end users) can purchase cheap and stable power. In short, the fuel cost is reduced by paying attention to the fuel selection process and fuel procurement process in the previous stage stored in the fuel tank.

  In general, the fuel used for power generation facilities is imported from other countries. However, since there is a risk associated with transportation from the extraction of fuel, insurance is provided to avoid that risk. The insurance premium increases the unit price of electricity sold as a result of being included in the fuel cost. In this regard, according to the present embodiment, evaluation factors such as social conditions that affect the fuel cost are also taken into account in the selection of the fuel, so that the fuel can be reliably procured and the fuel cost can be suppressed as a result.

1 is an overall view of a fuel procurement support system according to a first embodiment to which the present invention is applied. It is a block diagram of the fuel procurement support system of FIG. It is a flowchart which shows each process of the fuel procurement assistance method in the fuel procurement assistance system of FIG. It is a figure which shows an example of the management screen displayed on the monitoring terminal of the fuel management department of FIG. It is the time chart which showed the procurement of the fuel to which this invention is applied in time series. It is a whole figure of the fuel procurement support system of a second embodiment to which the present invention is applied.

Explanation of symbols

1 Fuel Procurement Support System 10 Common Network Server 12 Network 14a Mining Site Terminal 16a Power Station Terminal 18a Fuel Supply Company Terminal 20a Insurance Company Terminal 22a Fuel Management Department Terminal 24 Database 26 Fuel Selection Means 34 Fuel Ordering Means

Claims (5)

Receiving a fuel purchase order via a network;
In accordance with the purchase instruction, using a database describing a plurality of types of fuel and evaluation factors for each fuel, calculating a comprehensive evaluation corresponding to the fuel cost for each fuel;
And a step of selecting one fuel from the plurality of types of fuel by comparing each comprehensive evaluation with a set standard.   2. The fuel procurement support method according to claim 1, wherein an ordering instruction for the fuel is output to the network for the selected fuel procurement source.   The fuel procurement according to claim 1 or 2, wherein storage means for storing information related to the fuel is attached to a fuel transport container, and the fuel information read from the storage means is acquired via the network. Support method.   4. The fuel container according to claim 1, wherein a notification means for notifying the position of the fuel container by an artificial satellite radio wave is attached to the fuel container, and the position of the container is acquired via the artificial satellite and the network. The fuel procurement support method according to any one of the above. A database describing a plurality of types of fuel and evaluation factors of each fuel;
In accordance with a fuel purchase command received via a network, a comprehensive evaluation corresponding to a fuel cost is calculated for each fuel based on the evaluation factor of the database, and each of the plurality of types is checked by comparing each comprehensive evaluation with a setting criterion. A fuel procurement support system comprising fuel selection means for selecting one of the fuels.

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