JP2022172642A - Calculation device, calculation method, program, control device, control method, and control program - Google Patents

Abstract

To provide a calculation device, a calculation method, a program, a control device, a control method, and a control program that allow operation to be performed in a heat storage mode suitable for an environmental condition.SOLUTION: A calculation device determines a heat storage mode when heat storage is performed in an underground heat utilization system comprising a heat source well facility, and a heat storage assist facility comprising a cooling tower, a refrigerator, and a refrigerant circuit. The calculation device comprises an acquisition unit for acquiring a simulation condition, a first calculation unit for calculating a first simulation result that is a result of simulation in a first heat storage mode including heat storage by the cooling tower on the basis of the simulation condition, a second calculation unit for calculating a second simulation result that is a result of simulation in a second heat storage mode including heat storage by the refrigerator on the basis of the simulation condition, and a determination unit for determining any heat storage mode out of the first heat storage mode and the second heat storage mode on the basis of the first simulation result and the second simulation result.SELECTED DRAWING: Figure 2

Description

The present disclosure relates to a computing device, computing method, program, control device, control method, and control program.

In recent years, geothermal heat utilization systems have been proposed that use groundwater as a heat source or a cold heat source.

For example, in Patent Document 1, an underground A heat utilization system has been proposed. In this geothermal heat utilization system, it is possible to switch between a cool heat storage operation mode and a cold heat release operation mode according to the season. In the cold storage heat operation mode, heat is exchanged between the evaporator of the heat source equipment and the well-side piping, and heat is exchanged between the condenser of the heat source equipment and the load. In the radiation cooling heat operation mode, heat is exchanged between the condenser of the heat source equipment and the well-side piping, and heat is exchanged between the evaporator of the heat source equipment and the load.

JP 2018-173257 A

By the way, in the geothermal heat utilization system as described in Patent Literature 1, it is desired to always operate more efficiently. For example, environmental conditions such as temperature and humidity change daily. For this reason, it is preferable to operate the geothermal heat utilization system in a more suitable operation mode according to operating conditions as well as seasons such as summer and winter.

The present disclosure has been made to solve the above problems, and provides a computing device, a computing method, a program, a control device, a control method, and a control program that can operate in a heat storage mode suitable for environmental conditions. for the purpose.

In order to solve the above problems, a computing device according to the present disclosure includes a hot water well, a cold water well, a well-side pipe connecting the hot water well and the cold water well, and a pump provided in the well-side pipe. A ground comprising a heat source well facility, a cooling tower, a refrigerator, and a refrigerant circuit connected to at least one of the cooling tower and the refrigerator and capable of exchanging heat with the well-side piping. A calculation device for determining a heat storage mode when storing heat in a medium heat utilization system, comprising: an acquisition unit for acquiring simulation conditions; and a simulation of a first heat storage mode including heat storage by the cooling tower based on the simulation conditions. A first calculation unit that calculates a first simulation result that is a result, and a second calculation unit that calculates a second simulation result that is a simulation result of a second heat storage mode including heat storage by the refrigerator based on the simulation conditions. and a determination unit that determines one of the first heat storage mode and the second heat storage mode based on the first simulation result and the second simulation result.

The calculation method according to the present disclosure includes a heat source well facility including a hot water well, a cold water well, a well-side pipe connecting the hot water well and the cold water well, and a pump provided in the well-side pipe, a cooling tower, Heat is stored in a geothermal heat utilization system comprising: a refrigerator; and an auxiliary heat storage facility having a refrigerant circuit connected to at least one of the cooling tower and the refrigerator and capable of exchanging heat with the well-side piping. A calculation method for determining an actual heat storage mode, wherein simulation conditions are obtained, and based on the simulation conditions, a first simulation result, which is a simulation result of a first heat storage mode including heat storage by the cooling tower, is calculated, Based on the simulation conditions, a second simulation result, which is a simulation result of the second heat storage mode including heat storage by the refrigerator, is calculated, and the first heat storage is calculated based on the first simulation result and the second simulation result. One of the heat storage mode and the second heat storage mode is determined.

A program according to the present disclosure includes a heat source well facility including a hot water well, a cold water well, a well-side pipe connecting the hot water well and the cold water well, and a pump provided in the well-side pipe, a cooling tower, a refrigeration and a refrigerant circuit connected to at least one of the cooling tower and the refrigerator and capable of exchanging heat with the well-side piping. A method for determining the heat storage mode of, obtaining simulation conditions, calculating a first simulation result that is a simulation result of a first heat storage mode including heat storage by the cooling tower based on the simulation conditions, and calculating the simulation Based on the conditions, a second simulation result, which is a simulation result of a second heat storage mode including heat storage by the refrigerator, is calculated, and based on the first simulation result and the second simulation result, the first heat storage mode and A computer is caused to execute a method of determining one of the second heat accumulation modes.

According to the calculation device, calculation method, program, control device, control method, and control program of the present disclosure, it is possible to operate in a heat storage mode suitable for environmental conditions.

1 is a system diagram showing a schematic configuration of a geothermal heat utilization system according to an embodiment of the present disclosure; FIG. 1 is a block diagram showing a functional configuration of a geothermal heat utilization system according to an embodiment of the present disclosure; FIG. FIG. 4 is a diagram showing the flow of groundwater and medium when operating in the cooling operation mode in the geothermal heat utilization system according to the embodiment of the present disclosure; FIG. 4 is a diagram showing the flow of groundwater and medium when operating in the heating operation mode in the geothermal heat utilization system according to the embodiment of the present disclosure; FIG. 4 is a diagram showing flows of groundwater and medium when cold water heat storage operation is performed in the first heat storage mode in the geothermal heat utilization system according to the embodiment of the present disclosure; FIG. 4 is a diagram showing the flow of groundwater and medium when cold water heat storage operation is performed in the second heat storage mode in the geothermal heat utilization system according to the embodiment of the present disclosure; 4 is a flow chart showing the flow of a calculation method according to an embodiment of the present disclosure; 4 is a flow chart showing the flow of a control method according to an embodiment of the present disclosure; FIG. 2 is a diagram illustrating an example of a hardware configuration of a computer included in each of a computing device and a control device according to an embodiment of the present disclosure; FIG.

Hereinafter, embodiments according to the present disclosure will be described with reference to the drawings. The same reference numerals are given to the same or corresponding configurations in all the drawings, and common explanations are omitted.

<Embodiment>
An embodiment of a geothermal heat utilization system according to the present disclosure will be described with reference to FIGS. 1 to 8. FIG.
(Configuration of geothermal heat utilization system)
As shown in FIGS. 1 and 2, the geothermal heat utilization system 1 includes a heat source well facility 10, an auxiliary heat storage facility 100, a heat exchanger 4 (see FIG. 1), and a computing device 200 (see FIG. 2). , and a control device 300 (see FIG. 2).

(Configuration of heat source well equipment)
As shown in FIG. 1 , the heat source well equipment 10 mainly includes a hot water well 21 , a cold water well 22 , well-side piping 3 , and a pump 31 .

A hot water well 21 and a cold water well 22 each extend from the ground into the aquifer.
The hot water well 21 and the cold water well 22 are configured to take in groundwater from the aquifer, respectively, and return the groundwater from the inside of the hot water well 21 and the cold water well 22 to the aquifer.

The heat source well equipment 10 draws up groundwater from one of the hot water well 21 and the cold water well 22, performs heat exchange with the heat exchanger 4, and then supplies it to the other of the hot water well 21 and the cold water well 22 after heat exchange. Inject groundwater. In other words, the heat source well equipment 10 has two operation modes: when groundwater is pumped up from the hot water well 21 and injected into the cold water well 22, and when groundwater is pumped up from the cold water well 22 and injected into the hot water well 21.

The well-side pipe 3 connects the hot water well 21 and the cold water well 22 .
Both ends of the well-side pipe 3 extend inside the hot water well 21 and the cold water well 22 .
For example, the well-side pipe 3 may have both ends immersed in the ground water of the hot water well 21 and the cold water well 22 so as to connect the hot water well 21 and the cold water well 22 .

A pump 31 is provided in the well-side pipe 3 .
Pumps 31 are provided at both ends of the well-side pipe 3, respectively.
A pump 31 pumps water from the hot water well 21 and the cold water well 22 to the well side pipe 3 .
For example, the pumps 31 may be provided at both ends of the well-side pipe 3 and immersed in the groundwater in the hot water well 21 and the cold water well 22 .
For example, the pump 31 may be able to change its output by inverter control.

The heat exchanger 4 exchanges heat between the groundwater in the well-side pipe 3 and the medium on the side of the auxiliary heat storage equipment 100 .
For example, the heat exchanger 4 exchanges heat between groundwater pumped up from the hot water well 21 and flowing through the well-side pipe 3 and the medium on the side of the auxiliary heat storage equipment 100 . After the heat exchange, the groundwater flows from the heat exchanger 4 through the well-side pipe 3 and is injected into the cold water well 22 .
For example, the heat exchanger 4 exchanges heat between the groundwater pumped up from the cold water well 22 and flowing through the well-side pipe 3 and the medium on the side of the auxiliary heat storage equipment 100 . After the heat exchange, the groundwater flows from the heat exchanger 4 through the well-side pipe 3 and is injected into the hot water well 21 .
For example, the heat exchanger 4 may be provided in the middle of the well-side pipe 3 on the ground.

When the water that has passed through the heat exchanger 4 is hot water, the hot water well 21 stores hot water heat.
When the water that has passed through the heat exchanger 4 is cold water, cold water heat is stored in the cold water well 22 .
Here, "hot water" means water with a temperature higher than the initial temperature of the groundwater in the aquifer, and "cold water" means water with a temperature lower than the initial temperature of the groundwater in the aquifer. That is.
For example, the initial ground temperature of groundwater in an aquifer is 18°C.

(Configuration of auxiliary heat storage facility)
The auxiliary heat storage equipment 100 uses a medium that has undergone heat exchange with the groundwater in the well-side pipe 3 in the heat exchanger 4 .
The auxiliary heat storage facility 100 includes at least a cooling tower 130 , a heat source device 110 and a refrigerant circuit 101 .
In this embodiment, the auxiliary heat storage facility 100 includes, for example, a heat source device 110, an air conditioner 120, a cooling tower 130, and a refrigerant circuit 101.
The auxiliary heat storage equipment 100 may configure an air conditioning system including, for example, a heat source device 110 and an air conditioner 120 .

For example, the heat source device 110 may be a heat pump equipped with a condenser, an evaporator, a compressor, and the like.
The air conditioner 120 performs air conditioning of the space in which the air conditioner 120 is installed by exchanging heat with a medium (cold water) supplied from the heat source device 110 .

The cooling tower 130 cools the cooling water with heat of vaporization when the cooling water is brought into contact with the air and vaporized. Cooling tower 130 circulates cooling water to and from second heat exchanger 140 .
The second heat exchanger 140 exchanges heat between the medium (cooling water) of the refrigerant circuit 101 on the air conditioning system side and the cooling water on the cooling tower 130 side.
The second heat exchanger 140 cools the medium of the refrigerant circuit 101 on the air conditioning system side by heat exchange with the cooling water cooled by the cooling tower 130 .
A refrigerator 150 is configured by the heat source device 110 and the cooling tower 130 .

The refrigerant circuit 101 forms a medium flow path between the heat exchanger 4 , the heat source device 110 , the air conditioner 120 and the second heat exchanger 140 .
The refrigerant circuit 101 is appropriately provided with a pump, an on-off valve, and the like (not shown). route.
For example, the heat storage auxiliary equipment 100 can switch the operation mode between the cooling operation mode and the heating operation mode by switching the circulation route of the medium in the refrigerant circuit 101 .

(Configuration of cooling operation mode)
As shown in FIG. 3 , in the cooling operation mode, the auxiliary heat storage equipment 100 performs cooling operation, and the hot water well 21 stores hot water heat. In this case, the pump 31 of the cold water well 22 pumps groundwater and feeds it to the heat exchanger 4 . The heat exchanger 4 exchanges heat between the groundwater in the well-side pipe 3 and the medium flowing through the refrigerant circuit 101 on the auxiliary heat storage equipment 100 side. The medium (cooling water) cooled by the heat exchange in the heat exchanger 4 on the side of the auxiliary heat storage equipment 100 is sent to the heat source device 110, and is heat-exchanged with the medium (cold water) on the side of the air conditioner 120 in the heat source device 110. . Accordingly, the air conditioner 120 connected to the heat source device 110 can cool the room. On the other hand, the medium (cooling water) heated by the heat exchange in the heat source equipment 110 is sent to the heat exchanger 4 again, cooled, and then circulated. The heat exchanger 4 heats the groundwater by exchanging heat between the heated medium and the groundwater flowing through the well-side pipe 3 . Hot water heat is stored by injecting heated groundwater into the hot water well 21 through the well-side pipe 3 .

(Configuration of heating operation mode)
As shown in FIG. 4 , in the heating operation mode, the auxiliary heat storage equipment 100 performs heating operation, and cold water heat storage is performed in the cold water well 22 . In this case, the pump 31 of the hot water well 21 draws up underground water (hot water) and feeds it into the heat exchanger 4 . The heat exchanger 4 exchanges heat between the groundwater in the well-side pipe 3 and the medium flowing through the refrigerant circuit 101 on the auxiliary heat storage equipment 100 side. On the side of the auxiliary heat storage equipment 100 , the medium heated by heat exchange in the heat exchanger 4 is sent to the heat source device 110 and heat exchanged in the heat source device 110 . Accordingly, the air conditioner 120 connected to the heat source device 110 can heat the room. On the other hand, the medium cooled by heat exchange in the heat source equipment 110 is sent to the heat exchanger 4 again and circulated. The heat exchanger 4 exchanges heat between the cooled medium and the groundwater flowing through the well-side pipe 3, thereby cooling the groundwater. By injecting the cooled groundwater into the cold water well 22 through the well-side pipe 3, cold water heat is stored.

Further, the geothermal heat utilization system 1 can store cold water heat in the cold water well 22 by cooling the groundwater in a state where the heating operation is not performed in winter (or at night) when the outside air temperature is low.
When performing cold water heat storage, the geothermal heat utilization system 1 can switch the heat storage mode between a first heat storage mode including heat storage by the cooling tower 130 and a second heat storage mode including heat storage by the refrigerator 150. It is
The geothermal heat utilization system 1 performs cold water heat storage in one of the first heat storage mode and the second heat storage mode under the control of the control device 300, which will be described later.

(Configuration of first heat storage mode)
As shown in FIG. 5 , in the first heat storage mode, the cooling water cooled by the heat of vaporization when it is vaporized in contact with the atmosphere in the cooling tower 130 is sent to the second heat exchanger 140 . The second heat exchanger 140 exchanges heat between the cooling water and the medium of the refrigerant circuit 101 . That is, the second heat exchanger 140 cools the medium of the refrigerant circuit 101 with the cooling water cooled by the cooling tower 130 . The cooled medium is sent to the heat exchanger 4 and exchanges heat with the groundwater in the well-side piping 3 . In this case, the pump 31 of the hot water well 21 draws up underground water (hot water) and feeds it into the heat exchanger 4 . As a result, the groundwater in the well-side pipe 3 is cooled and poured into the cold water well 22 to store cold water heat.

(Configuration of second heat storage mode)
As shown in FIG. 6 , in the second heat storage mode, cooling tower 130 and heat source device 110 are used as refrigerator 150 . In this case, the pump 31 of the hot water well 21 draws up underground water (hot water) and feeds it into the heat exchanger 4 . On the auxiliary heat storage equipment 100 side, the medium is sent from the second heat exchanger 140 side to the heat source equipment 110 . The heat source device 110 cools the medium (cold water) sent from the heat exchanger 4 side by heat exchange. A medium (cold water) cooled by heat exchange in the heat source equipment 110 is sent to the heat exchanger 4 . The heat exchanger 4 exchanges heat between the cooled medium and the groundwater flowing through the well-side pipe 3, thereby cooling the groundwater. By injecting the cooled groundwater into the cold water well 22 through the well-side pipe 3, cold water heat is stored. On the other hand, the medium (cooling water) whose temperature has been raised by heat exchange with the medium (cold water) on the heat exchanger 4 side in the heat source device 110 is sent to the second heat exchanger 140 . The second heat exchanger 140 cools the medium sent from the heat source equipment 110 by exchanging heat with the cooling water cooled by the cooling tower 130 .

(Configuration of computing device)
As shown in FIG. 2 , the calculation device 200 determines a heat storage mode when heat is stored in the geothermal heat utilization system 1 .
The calculation device 200 performs a simulation calculation in advance as to which of the first heat storage mode and the second heat storage mode is appropriate for cold water heat storage when cold water heat storage is performed in the geothermal heat utilization system 1. I do. The calculation device 200 determines one of the first heat storage mode and the second heat storage mode based on the result of the simulation calculation.

In this embodiment, the computing device 200 is provided in the geothermal heat utilization system 1 . That is, the computing device 200 is provided at the installation location of the geothermal heat utilization system 1 .
Computing device 200 may, for example, be provided with control device 300 .
The computing device 200 may be incorporated in the control device 300 as part of the configuration of the control device 300 .
Further, the computing device 200 may be provided at a location different from the installation location of the geothermal heat utilization system 1 .
For example, the computing device 200 may be provided so as to be capable of data communication with the control device 300 via a wired or wireless external network.

The calculation device 200 functionally includes an acquisition unit 210 , a first calculation unit 220 , a second calculation unit 230 , a temperature calculation unit 240 and a determination unit 250 .

Acquisition unit 210 acquires simulation conditions.
The acquisition unit 210 acquires simulation conditions that are prerequisites for simulation calculations that are performed to determine the heat storage mode.
The simulation conditions to be acquired include, for example, outside air conditions.
The outdoor conditions may include, for example, at least one of outdoor temperature and outdoor humidity.
The outside air conditions may include both the outside air temperature and the outside air humidity.
In the present embodiment, the outside air conditions include, for example, the outside air temperature (range) and the outside air humidity (range) assumed in the location (area) where the geothermal heat utilization system 1 is installed.
The simulation conditions acquired by the acquisition unit 210 may include the pumped water temperature and the upper limit water injection temperature. The pumping temperature is the temperature of groundwater that can be pumped from the hot water well 21 . The upper limit water injection temperature is the upper limit of the water injection temperature of the groundwater that is injected into the cold water well 22 when cold water heat storage is performed in the cold water well 22 . The upper water injection temperature limit is, for example, the upper limit of the water injection temperature at which the temperature rise of the groundwater in the cold water well 22 is suppressed when groundwater is injected into the cold water well 22 .
The acquiring unit 210 acquires the outside air temperature and the outside air humidity to be acquired as virtual outside air conditions for performing the simulation.

The acquisition unit 210 may include the specifications of the equipment that constitutes the heat source well facility 10 and the auxiliary heat storage facility 100 as simulation conditions.
The equipment specifications include, for example, the pump 31 of the heat source well equipment 10, the heat source equipment 110 of the auxiliary heat storage equipment 100, the cooling tower 130, the pump (not shown) provided in the refrigerant circuit 101, and the medium of the auxiliary heat storage equipment 100 side. Specifications and the like may be included.

The obtaining unit 210 may obtain the simulation conditions by, for example, receiving input of numerical values of the respective simulation conditions by the operator.
The acquisition unit 210 may acquire the simulation conditions from, for example, a database that stores the specifications of each device that constitutes the heat source well facility 10 and the auxiliary heat storage facility 100 .

The first calculation unit 220 performs simulation calculation in the first heat storage mode including heat storage by the cooling tower 130 based on the simulation conditions acquired by the acquisition unit 210 .
The first calculator 220 performs a simulation calculation when operating in the first heat storage mode including heat storage using the cooling tower 130 as shown in FIG. 5 based on the simulation conditions.
The first calculation unit 220 performs a simulation calculation when cold water heat is stored in the cold water well 22 by cooling the medium using the cooling tower 130 .
The first calculator 220 varies the temperature and humidity within the ranges of the virtual outdoor air temperature and the virtual outdoor air humidity obtained as the virtual outdoor air conditions, and performs simulation calculations multiple times.
The first calculator 220 calculates (outputs) a first simulation result, which is a result obtained by simulation calculation.
The first calculation unit 220 may include at least one of water injection temperature, heat storage amount, and power as the first simulation result obtained by the simulation calculation. The injected water temperature is the temperature of groundwater injected into the cold water well 22 from the well-side pipe 3 that exchanges heat with the refrigerant circuit 101 . The heat storage amount is the amount of energy obtained by injecting water into the cold water well 22 from the well-side pipe 3 that has exchanged heat with the refrigerant circuit 101 . The power required to store heat includes the pump 31 on the side of the heat source well facility 10 and various pumps (not shown) provided in the refrigerant circuit 101 of the auxiliary heat storage facility 100, which are required to store heat in the first heat storage mode. , is the power for operating the cooling tower 130 .

The second calculation unit 230 performs simulation calculation in the second heat storage mode including heat storage by the refrigerator 150 (the heat source device 110 and the cooling tower 130) based on the simulation conditions acquired by the acquisition unit 210.
The second calculation unit 230 performs a simulation calculation when operating in the second heat storage mode including heat storage using the refrigerator 150 as shown in FIG. 6 based on the simulation conditions.
The second calculation unit 230 performs a simulation calculation when cold water heat is stored in the cold water well 22 by cooling the medium using the refrigerator 150 .
The second calculator 230 varies the temperature and humidity within the ranges of the virtual outdoor air temperature and the virtual outdoor air humidity obtained as the virtual outdoor air conditions, and performs simulation calculations multiple times.
The second calculator 230 calculates (outputs) a second simulation result, which is the result obtained by the simulation calculation.
The second calculation unit 230 may include at least one of the injected water temperature, heat storage amount, and power as the second simulation result to be calculated.
The second calculation unit 230 may calculate the second simulation result such that the heat storage amount in the second heat storage mode is the same as the heat storage amount in the first heat storage mode.
The power calculated by the second calculation unit 230 operates the pump 31 on the heat source well equipment 10 side, various pumps (not shown) provided on the refrigerant circuit 101 side of the heat storage auxiliary equipment 100, the cooling tower 130, and the heat source equipment 110. It is the driving force for

In the first heat storage mode, the temperature calculation unit 240 calculates the limit outside air temperature at which the groundwater injected into the cold water well 22 from the well-side pipe 3 that exchanges heat with the refrigerant circuit 101 becomes the upper limit injection temperature.

Based on the first simulation result calculated by the first calculation unit 220 and the second simulation result calculated by the second calculation unit 230, the determination unit 250 selects between the first heat storage mode and the second heat storage mode: Determine which heat storage mode.
The determining unit 250 may compare, for example, the injection water temperature, the heat storage amount, and the power included in the first simulation result and the second simulation result.
As a result of comparing the first simulation result and the second simulation result, the determining unit 250 determines, for example, the first heat storage mode and the second heat storage mode, whichever has the lower water injection temperature, as the heat storage mode.
When the simulation is performed such that the heat storage amount in the second heat storage mode is the same as the heat storage amount in the first heat storage mode, the determination unit 250 may determine the heat storage mode with the lower water injection temperature.
As a result of comparing the first simulation result and the second simulation result, the determining unit 250 determines, for example, the first heat storage mode and the second heat storage mode, whichever has a larger heat storage amount, as the heat storage mode.
The determination unit 250 determines, for example, the power required to store heat in the first heat storage mode and the power required to store heat in the second heat storage mode as a result of comparing the first simulation result and the second simulation result. based on the result of comparison with, the one with the smaller power is determined as the heat storage mode.
When the simulation is performed so that the heat storage amount in the second heat storage mode is the same as the heat storage amount in the first heat storage mode, the determination unit 250 determines the power required to store heat in the first heat storage mode and the power required to store heat in the second heat storage mode. Based on the result of comparison with the power required to store heat in the mode, the mode with the smaller power may be determined as the heat storage mode.

Further, the determination unit 250 selects the second heat storage mode as the heat storage mode under the condition of the virtual outside air temperature equal to or higher than the limit outside air temperature calculated by the temperature calculation unit 240 . This is because in the first heat storage mode using the cooling tower 130, when the outside air temperature is high, cooling in the cooling tower 130 cannot be sufficiently performed, and the water injection temperature may become equal to or higher than the upper water injection temperature limit.
The determination unit 250 compares a predetermined target cold water heat storage amount (for example, cold water heat storage is performed by predicting that the cold water heat storage amount and the hot water heat storage amount are equal) and the current cold water heat storage amount, and determines a large-capacity A second heat storage mode in which cold water heat storage is possible may be determined as the heat storage mode. This is because in the first heat storage mode using the cooling tower 130, there is a possibility that a sufficient cold water heat storage amount cannot be obtained.

As a result of comparing the first simulation result and the second simulation result, the determination unit 250 selects the determined heat storage mode from among the first heat storage mode and the second heat storage mode for each virtual outside air condition when the simulation calculation is performed. generates heat storage mode information associated with
The determination unit 250 may generate heat storage mode information in which the determined heat storage mode is associated with the virtual outside air temperature (for example, every 1° C.) for which the simulation calculation was performed.
The determination unit 250 may generate heat storage mode information in which the determined heat storage mode is associated with the simulated outside air humidity (for example, every 5%).
The determining unit 250 may generate heat storage mode information that associates the determined heat storage mode with each combination of the virtual outside air temperature and the virtual humidity for which the simulation calculation was performed.
The determination unit 250 outputs the generated accumulation mode information to the control device 300, which will be described later.

The operation of the computing device 200 of this embodiment will be described.
The operation of computing device 200 corresponds to an embodiment of a computing method.
The computing device 200 implements each step shown in FIG.

First, the acquisition unit 210 acquires simulation conditions (ST01: step of acquiring simulation conditions). Acquisition unit 210 acquires outside air conditions (outside air temperature, outside air humidity) as simulation conditions.
For example, the pumped water temperature and the upper limit water injection temperature may be further acquired as the simulation conditions.
For example, the acquisition unit 210 uses the pump 31 of the heat source well equipment 10, the heat source equipment 110 of the auxiliary heat storage equipment 100, the cooling tower 130, the pump (not shown) provided in the refrigerant circuit 101, the auxiliary heat storage equipment 100 side as simulation conditions. You may acquire the specification of the medium of, etc. further.

Following the execution of ST01, the first calculation unit 220 performs simulation calculation of the first heat storage mode including heat storage by the cooling tower 130 based on the simulation conditions acquired by the acquisition unit 210, and obtains the first simulation result ( ST02: Step of performing simulation calculation in the first heat storage mode).

Following the execution of ST02, the second calculation unit 230 performs simulation calculation of the second heat storage mode including heat storage by the refrigerator 150 based on the simulation conditions acquired by the acquisition unit 210, and obtains the second simulation result ( ST03: Step of performing simulation calculation in the second heat storage mode).

Following the execution of ST03, the determination unit 250 determines the power required to store heat in the first heat storage mode based on the first simulation result obtained in ST02 and the second simulation result obtained in ST03, The power required to store heat in the second heat storage mode is compared (ST04: step of comparing the power in the first heat storage mode and the second heat storage mode).

Further, following ST02, the temperature calculation unit 240 calculates the limit outside air temperature at which the water injection temperature to the cold water well 22 becomes the upper limit water injection temperature when heat is stored in the first heat storage mode (ST05: first step of calculating the limit outside temperature in the heat storage mode). ST05 may be performed in parallel with ST04 and ST05, or may be performed before or after ST03 and ST04.

After ST04 and ST05 are completed, the determination unit 250 determines the first heat storage mode based on the first simulation result calculated by the first calculation unit 220 and the second simulation result calculated by the second calculation unit 230. One of the second heat storage modes is determined (ST06: step of determining heat storage mode). The determination unit 250 may compare the water injection temperature, heat storage amount, and power included in the first simulation result and the second simulation result, and determine the heat storage mode so as to improve energy saving, for example.
The determining unit 250 may select the second heat storage mode as the heat storage mode so that the water injection temperature into the cold water well 22 does not exceed the upper limit water injection temperature, for example, at a virtual outside air temperature equal to or higher than the critical outside air temperature.

After performing ST06, the determining unit 250 generates heat storage mode information in which the determined heat storage mode is associated with each virtual outside air condition (ST07: step of generating heat storage mode information). The determining unit 250 outputs the generated accumulation mode information to the control device 300 .

(Configuration of control device)
As shown in FIG. 2 , the control device 300 controls operations of the geothermal heat utilization system 1 .
The control device 300 controls the operation of each part of the geothermal heat utilization system 1 in each of the cooling operation mode, the heating operation mode, the first heat storage mode, and the second heat storage mode.
The control device 300 operates in the heat storage mode determined by the computing device 200 when cold water heat storage is performed.
The control device 300 operates the geothermal heat utilization system 1 in a heat storage mode corresponding to the actual outside air conditions based on the actual outside air conditions during operation.

The control device 300 includes a mode information storage section 310 , an outside air condition acquisition section 320 and an operation control section 330 .

The mode information storage unit 310 stores heat storage mode information output from the computing device 200 .
The mode information storage unit 310 stores heat storage mode information associated with the heat storage mode determined for each computing device 200 and each virtual outside air condition.

The outside air condition acquisition unit 320 acquires the actual outside air condition.
The outside air condition acquisition unit 320 acquires at least one of the actual outside air temperature and the actual outside air humidity as the actual outside air condition.
The outside air condition acquisition unit 320 may acquire both the actual outside air temperature and the actual outside air temperature as the actual outside air conditions.
The outside air condition acquisition unit 320 may, for example, acquire the actual outside air temperature and the actual outside air humidity detected by a thermometer, a hygrometer, or the like at the location where the geothermal heat utilization system 1 is installed as the actual outside air conditions. .
The outside air condition acquiring unit 320 may, for example, acquire numerical values of the actual outside air temperature and the actual outside air humidity input by the operator.
The outside air condition acquisition unit 320 may acquire data on the actual outside air temperature and the actual outside air humidity via an external network.

The operation control unit 330 operates the geothermal heat utilization system 1 based on the heat storage mode stored in the mode information storage unit 310 .
Based on the heat storage mode stored in the mode information storage unit 310 and the actual outside air condition, the operation control unit 330 uses geothermal heat in either the first heat storage mode or the second weak heat mode. Let system 1 run.
The operation control unit 330 refers to the heat storage mode information stored in the mode information storage unit 310 and acquires the heat storage mode associated with the virtual outside air condition corresponding to the acquired actual outside air condition.
The operation control unit 330 controls each part of the heat source well equipment 10 and the auxiliary heat storage equipment 100 in the acquired heat storage mode to perform the cold water heat storage operation.

The operation of the control device 300 of this embodiment will be described.
The operation of the control device 300 corresponds to an embodiment of the control method.
The control device 300 implements each step shown in FIG.

First, the outside air condition acquisition unit 320 acquires the actual outside air condition (ST11: step of acquiring the actual outside air condition).

After performing ST11, the operation control unit 330 refers to the heat storage mode information stored in the mode information storage unit 310, and acquires the heat storage mode associated with the virtual outside air condition corresponding to the acquired actual outside air condition (ST12 : a step of acquiring information on the heat storage mode corresponding to the actual outside air conditions). The operation control unit 330 acquires the heat storage mode determined by the computing device 200 to be appropriate as a result of the comparison under the actual outside air conditions at that time, out of the first heat storage mode and the second heat storage mode.

After performing ST12, the operation control unit 330 operates the geothermal heat utilization system 1 based on the acquired heat storage mode (ST13: step of operating the geothermal heat utilization system in the acquired heat storage mode).
When the operation control unit 330 acquires the first heat storage mode corresponding to the actual outside air condition, the cold water heat storage is performed in the first heat storage mode.
When the operation control unit 330 acquires the second heat storage mode corresponding to the actual outside air condition, the cold water heat storage is performed in the second heat storage mode.

(Action and effect)
According to the present embodiment, the calculation device 200 provides the first simulation result when the first heat storage mode including heat storage by the cooling tower 130 is performed, and the result when the second heat storage mode including heat storage by the refrigerator 150 is performed. A heat storage mode is determined based on the second simulation result. Thereby, the computing device 200 can determine the heat storage mode suitable for the environmental conditions with high accuracy based on the simulation. As a result, the geothermal heat utilization system 1 can be operated in a heat storage mode suitable for environmental conditions.

Further, according to one example of the present embodiment, the first simulation result and the second simulation result each include at least one of water injection temperature, heat storage amount, and power.
As a result, by comparing at least one of the water injection temperature, heat storage amount, and power in the first heat storage mode including heat storage by the cooling tower 130 and the second heat storage mode including heat storage by the refrigerator 150, the determining unit 250 can properly determine the heat storage mode.

Further, according to one example of the present embodiment, the determination unit 250 compares the power required to store heat in the first heat storage mode and the power required to store heat in the second heat storage mode. Accordingly, the determination unit 250 can select the heat storage mode that requires less power and is more energy-saving.

Further, according to one example of the present embodiment, the second calculation unit 230 calculates the second simulation result such that the heat storage amount in the second heat storage mode is the same as the heat storage amount in the first heat storage mode. As a result, the determination unit 250 selects an appropriate heat storage mode by comparing the first heat storage mode and the second heat storage mode with the same amount of heat stored in the first heat storage mode and the second heat storage mode. can do.

Further, according to an example of the present embodiment, the determining unit 250 determines one of the first heat storage mode and the second heat storage mode in association with each virtual outside air condition of a plurality of virtual outside air conditions. . By determining the heat storage mode in association with the virtual outside air condition in this way, the geothermal heat utilization system 1 can be operated in an appropriate heat storage mode according to the actual outside air condition during operation.

Further, according to one example of this embodiment, the virtual outside air condition includes at least one of a virtual outside air temperature and a virtual outside air humidity.
As a result, the geothermal heat utilization system 1 can be operated in an appropriate heat storage mode according to the actual outside air temperature during operation and the actual outside air temperature.

Further, according to one example of the present embodiment, the determination unit 250 selects the second heat storage mode as the heat storage mode at a virtual outside air temperature equal to or higher than the limit outside air temperature.
As a result, when the actual outside air temperature is high and cooling by the cooling tower 130 results in a high injection temperature, the geothermal heat utilization system 1 does not perform cooling by the cooling tower 130 and uses the refrigerator 150. By accumulating heat, it is possible to suppress the temperature rise of injected water.

According to the calculation method of the present embodiment, by determining the heat storage mode based on the first simulation result and the second simulation result, the heat storage mode suitable for the environmental conditions can be determined with high accuracy based on the simulation. can be done. As a result, the geothermal heat utilization system 1 can be operated in a heat storage mode suitable for environmental conditions.

According to this embodiment, the control device 300 stores the mode information storage unit 310 storing the heat storage mode information related to the heat storage mode determined by the computing device 200, and based on the heat storage mode stored in the mode information storage unit 310, and an operation control unit 330 for operating the geothermal heat utilization system 1 .
As a result, the geothermal heat utilization system 1 can be operated in a heat storage mode suitable for the environmental conditions determined with high accuracy based on the simulation by the computing device 200 .

Further, according to one example of the present embodiment, the operation control unit 330 operates the geothermal heat utilization system 1 based on the heat storage mode associated with the actual outside air condition acquired by the outside air condition acquisition unit 320 .
As a result, it is possible to operate the geothermal heat utilization system 1 in a heat storage mode suitable for the environmental conditions determined with high accuracy based on the simulation by the computing device 200 . As a result, the geothermal heat utilization system 1 can be operated in a heat storage mode suitable for environmental conditions.

According to the control method of the present embodiment, it is possible to operate the geothermal heat utilization system 1 in a heat storage mode that is determined with high accuracy based on the simulation by the computing device 200 and that is suitable for the environmental conditions. As a result, the geothermal heat utilization system 1 can be operated in a heat storage mode suitable for environmental conditions.

<Modification>
In the above-described embodiment, programs for realizing various functions of the computing device 200 and the control device 300 are recorded in a computer-readable recording medium, and the programs recorded in this recording medium are transferred to a microcomputer. Various processing is performed by loading and executing the computer system. Here, various processes of the CPU of the computer system are stored in a computer-readable recording medium in the form of programs, and the above various processes are performed by reading and executing the programs by the computer. Computer-readable recording media include magnetic disks, magneto-optical disks, CD-ROMs, DVD-ROMs, semiconductor memories, and the like. Alternatively, the computer program may be distributed to a computer via a communication line, and the computer receiving the distribution may execute the program.

An example of the hardware configuration of the computer 190 that executes programs for realizing various functions of the computing device 200 and the control device 300 in the above embodiment will be described.

As shown in FIG. 9, a computer 190 included in each of the computing device 200 and the control device 300 includes a processor 195, a memory 196, a storage/reproducing device 197, and an Input Output Interface (hereinafter referred to as "IO I/F"). ) 198 and a communication interface (hereinafter referred to as “communication I/F”) 199 .

For example, processor 195 may be a CPU.
For example, the memory 196 is a medium such as a random access memory (hereinafter referred to as "RAM") that temporarily stores data used by programs executed by the computing device 200 and the control device 300 respectively. good too.
For example, the storage/playback device 197 may be a device for storing data or the like in external media such as a CD-ROM, DVD, or flash memory, or playing back data or the like from the external media.
For example, the IO I/F 198 may be an interface for inputting/outputting information between each of the computing device 200 and the control device 300 and another device.
For example, the communication I/F 199 may be an interface that performs communication between each of the computing device 200 and the control device 300 and another device via a communication line such as the Internet or a dedicated communication line.

<Other embodiments>
Although the embodiment of the present disclosure has been described above, the embodiment is shown as an example and is not intended to limit the scope of the present disclosure. This embodiment can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the gist of the present disclosure. This embodiment and its modifications are intended to be included in the scope and equivalents of the present disclosure as well as included in the scope and gist of the present disclosure.

<Appendix>
The calculation device 200, the calculation method, the program, the control device 300, the control method, and the control program described in the embodiments are understood as follows, for example.

(1) A computing device 200 according to a first aspect includes a hot water well 21, a cold water well 22, a well-side pipe 3 connecting the hot water well 21 and the cold water well 22, and the well-side pipe 3 a heat source well facility 10 including a pump 31; a cooling tower 130; a refrigerator 150; and a calculation device 200 for determining a heat storage mode when storing heat in the geothermal heat utilization system 1, comprising: an acquisition unit 210 for acquiring simulation conditions; Based on the simulation conditions, a first calculation unit 220 that calculates a first simulation result that is a simulation result of the first heat storage mode including heat storage by the cooling tower 130, and a second calculation unit 220 that includes heat storage by the refrigerator 150 based on the simulation conditions A second calculation unit 230 that calculates a second simulation result that is a result of the simulation of the heat storage mode, and a calculation of the first heat storage mode and the second heat storage mode based on the first simulation result and the second simulation result. and a determination unit 250 that determines one of the heat storage modes.

The calculation device 200 compares the first simulation result when the first heat storage mode including heat storage by the cooling tower 130 is performed and the second simulation result when the second heat storage mode including heat storage by the refrigerator 150 is performed. Based on this, the heat storage mode is determined. Thereby, the computing device 200 can determine the heat storage mode suitable for the environmental conditions with high accuracy based on the simulation. As a result, the geothermal heat utilization system 1 can be operated in a heat storage mode suitable for environmental conditions.

(2) The computing device 200 according to the second aspect is the computing device 200 of (1), in which the first simulation result and the second simulation result are the heat exchanged with the refrigerant circuit 101, respectively. It includes at least one of the temperature of water injected from the well-side pipe 3 to the cold water well 22, the amount of heat stored in the heat source well equipment 10, and the power required to store heat.

As a result, by comparing at least one of the water injection temperature, heat storage amount, and power in the first heat storage mode including heat storage by the cooling tower 130 and the second heat storage mode including heat storage by the refrigerator 150, the determining unit 250 can properly determine the heat storage mode.

(3) The computing device 200 according to the third aspect is the computing device 200 of (1) or (2), wherein the determination unit 250 includes power required to store heat in the first heat storage mode, The heat storage mode is determined based on the result of comparison between the power required to store heat in the second heat storage mode.

Accordingly, by comparing the power required to store heat in the first heat storage mode and the power required to store heat in the second heat storage mode, the determination unit 250 selects the heat storage mode with higher energy saving. can be selected.

(4) A computing device 200 according to a fourth aspect is the computing device 200 according to any one of (1) to (3), wherein the second computing unit 230 determines that the heat storage amount in the second heat storage mode is The second simulation result is calculated so as to be the same as the heat storage amount in the first heat storage mode.

As a result, the determination unit 250 selects an appropriate heat storage mode by comparing the first heat storage mode and the second heat storage mode with the same amount of heat stored in the first heat storage mode and the second heat storage mode. can do.

(5) The computing device 200 according to the fifth aspect is the computing device 200 according to any one of (1) to (4), in which the determination unit 250 determines the In association, one of the first heat storage mode and the second heat storage mode is determined.

Accordingly, by determining the heat storage mode in association with the virtual outdoor air condition, the geothermal heat utilization system 1 can be operated in an appropriate heat storage mode according to the actual outdoor air condition during operation.

(6) The computing device 200 according to the sixth aspect is the computing device 200 of (5), wherein the virtual outside air condition includes at least one of a virtual outside air temperature and a virtual outside air humidity.

As a result, the geothermal heat utilization system 1 can be operated in an appropriate heat storage mode according to the actual outside air temperature during operation and the actual outside air temperature.

(7) A computing device 200 according to a seventh aspect is the computing device 200 of (5) or (6), in which in the first heat storage mode, from the well-side pipe 3 that exchanges heat with the refrigerant circuit 101 It further includes a temperature calculation unit 240 that calculates a limit outside air temperature at which the water injection temperature into the cold water well 22 becomes the upper limit water injection temperature, and the determination unit 250 calculates the second heat storage at the virtual outside temperature that is equal to or higher than the limit outside temperature. A mode is selected as the heat storage mode.

As a result, at a virtual outside air temperature at which the water injection temperature is equal to or higher than the upper limit water injection temperature, by selecting the second heat storage mode as the heat storage mode, the geothermal heat utilization system 1 can be cooled by the cooling tower 130 when the actual outside air temperature is high. In the case where the temperature of injected water becomes high, cooling by the cooling tower 130 is not performed, and heat is stored using the refrigerator 150, thereby suppressing an increase in the temperature of injected water.

(8) The calculation method according to the eighth aspect includes the hot water well 21, the cold water well 22, the well-side pipe 3 connecting the hot water well 21 and the cold water well 22, and the pump provided in the well-side pipe 3 31, a cooling tower 130, a refrigerator 150, and a refrigerant circuit 101 connected to at least one of the cooling tower 130 and the refrigerator 150 and capable of exchanging heat with the well-side piping 3, and a heat storage auxiliary equipment 100 having a Calculate the first simulation result, which is the result of the simulation of the first heat storage mode including heat storage by the refrigerator 150, and based on the simulation conditions, the second simulation result, which is the result of the simulation of the second heat storage mode including heat storage by the refrigerator 150 is calculated, and one of the first heat storage mode and the second heat storage mode is determined based on the first simulation result and the second simulation result.

Accordingly, by determining the heat storage mode based on the first simulation result and the second simulation result, the heat storage mode suitable for the environmental conditions can be determined with high accuracy based on the simulation. As a result, the geothermal heat utilization system 1 can be operated in a heat storage mode suitable for environmental conditions.

(9) The program according to the ninth aspect includes a hot water well 21, a cold water well 22, a well-side pipe 3 connecting the hot water well 21 and the cold water well 22, and a pump 31 provided in the well-side pipe 3 , a cooling tower 130, a refrigerator 150, and a refrigerant circuit 101 connected to at least one of the cooling tower 130 and the refrigerator 150 and capable of exchanging heat with the well-side piping 3. A method for determining a heat storage mode when storing heat in a geothermal heat utilization system 1 comprising a heat storage auxiliary equipment 100 having a Calculate a first simulation result that is a simulation result of the first heat storage mode including and causing the computer to execute a method of determining one of the first heat storage mode and the second heat storage mode based on the first simulation result and the second simulation result.

Accordingly, by determining the heat storage mode based on the first simulation result and the second simulation result, the heat storage mode suitable for the environmental conditions can be determined with high accuracy based on the simulation. As a result, the geothermal heat utilization system 1 can be operated in a heat storage mode suitable for environmental conditions.

(10) The control device 300 according to the tenth aspect includes a mode information storage unit 310 storing heat storage mode information about the heat storage mode determined by the computing device 200 according to any one of (1) to (7); and an operation control unit 330 for operating the geothermal heat utilization system 1 based on the heat storage mode stored in the mode information storage unit 310 .

As a result, the geothermal heat utilization system 1 can be operated in a heat storage mode suitable for the environmental conditions determined with high accuracy based on the simulation by the computing device 200 .

(11) A control device 300 according to an eleventh aspect is the control device 300 of (10), and includes an outside air condition acquisition unit 320 that acquires an actual outside air condition, and the operation control unit 330 acquires the outside air condition. The geothermal heat utilization system 1 is operated based on the heat storage mode associated with the actual outside air condition acquired by the unit 320 .

As a result, it is possible to operate the geothermal heat utilization system 1 in a heat storage mode suitable for the environmental conditions determined with high accuracy based on the simulation by the computing device 200 . As a result, the geothermal heat utilization system 1 can be operated in a heat storage mode suitable for environmental conditions.

(12) A control method according to a twelfth aspect stores heat storage mode information related to any one of the heat storage modes of (1) to (7), and based on the stored heat storage mode, The heat utilization system 1 is operated.

As a result, it is possible to operate the geothermal heat utilization system 1 in a heat storage mode suitable for the environmental conditions determined with high accuracy based on the simulation by the computing device 200 . As a result, the geothermal heat utilization system 1 can be operated in a heat storage mode suitable for environmental conditions.

(13) A control program according to a thirteenth aspect stores heat storage mode information related to the heat storage mode determined by the computing device 200 according to any one of (1) to (7), and stores the stored heat storage mode information. Based on the mode, the computer executes a method for operating the geothermal heat utilization system 1 .

As a result, it is possible to operate the geothermal heat utilization system 1 in a heat storage mode suitable for the environmental conditions determined with high accuracy based on the simulation by the computing device 200 . As a result, the geothermal heat utilization system 1 can be operated in a heat storage mode suitable for environmental conditions.

REFERENCE SIGNS LIST 1 geothermal heat utilization system 2 well 3 well side pipe 4 heat exchanger 10 heat source well equipment 21 hot water well 22 cold water well 31 pump 100 heat storage auxiliary equipment 101 refrigerant circuit 110 heat source equipment 120 Air conditioner 130 Cooling tower 140 Second heat exchanger 150 Refrigerator 190 Computer 195 Processor 196 Memory 197 Recording/reproducing device 198 IO I/F
199...Communication I/F
DESCRIPTION OF SYMBOLS 200... Calculation device 210... Acquisition part 220... First calculation part 230... Second calculation part 240... Temperature calculation part 250... Determination part 300... Control device 310... Mode information storage part 320... Outside air condition acquisition part 330... Operation control part ST01 Step of acquiring simulation conditions ST02 Step of performing simulation calculation in the first heat storage mode ST03 Step of performing simulation calculation in the second heat storage mode ST04 Power in the first heat storage mode and the second heat storage mode Step ST05 of comparing Step ST06 of calculating the limit outside air temperature in the first heat storage mode Step ST06 of determining the heat storage mode Step ST07 of generating heat storage mode information Step ST11 Step of acquiring actual outside air conditions Step ST12 Actual outside air conditions Step ST13 of acquiring the heat storage mode corresponding to the step of operating the geothermal heat utilization system in the acquired heat storage mode

Claims (13)

a heat source well facility comprising a hot water well, a cold water well, a well-side pipe connecting the hot water well and the cold water well, and a pump provided in the well-side pipe;
A geothermal heat utilization system comprising a cooling tower, a refrigerator, and a heat storage auxiliary facility having a refrigerant circuit connected to at least one of the cooling tower and the refrigerator and capable of exchanging heat with the well-side piping A computing device for determining a heat storage mode when storing heat,
an acquisition unit that acquires simulation conditions;
a first calculation unit that calculates a first simulation result, which is a simulation result of a first heat storage mode including heat storage by the cooling tower, based on the simulation conditions;
a second calculation unit that calculates a second simulation result, which is a simulation result of a second heat storage mode including heat storage by the refrigerator, based on the simulation conditions;
a determination unit that determines one of the first heat storage mode and the second heat storage mode based on the first simulation result and the second simulation result;
A computing device comprising The first simulation result and the second simulation result are, respectively,
2. The method according to claim 1, which includes at least one of a water injection temperature from the well-side pipe that exchanges heat with the refrigerant circuit to the cold water well, a heat storage amount on the heat source well equipment side, and power required to store heat. computing device. The decision unit
power required to store heat in the first heat storage mode;
power required to store heat in the second heat storage mode;
3. The computing device according to claim 1 or 2, wherein the heat storage mode is determined based on the result of comparison between. The second calculation unit calculates the second simulation result such that the heat storage amount in the second heat storage mode is the same as the heat storage amount in the first heat storage mode. The computing device described. 5. Any one of claims 1 to 4, wherein the determination unit determines one of the first heat storage mode and the second heat storage mode in association with each virtual outside air condition of a plurality of virtual outside air conditions. The computing device according to item 1. The virtual outdoor air conditions include at least one of a virtual outdoor air temperature and a virtual outdoor air humidity.
6. A computing device according to claim 5. In the first heat storage mode, a temperature calculation unit that calculates a limit outside air temperature at which the temperature of water injected into the cold water well from the well-side pipe that exchanges heat with the refrigerant circuit becomes an upper limit water injection temperature,
The computing device according to claim 6, wherein the determination unit selects the second heat storage mode as the heat storage mode at the virtual outside air temperature equal to or higher than the limit outside air temperature. a heat source well facility comprising a hot water well, a cold water well, a well-side pipe connecting the hot water well and the cold water well, and a pump provided in the well-side pipe;
A geothermal heat utilization system comprising a cooling tower, a refrigerator, and a heat storage auxiliary facility having a refrigerant circuit connected to at least one of the cooling tower and the refrigerator and capable of exchanging heat with the well-side piping A calculation method for determining a heat storage mode when storing heat,
get the simulation conditions,
Based on the simulation conditions, calculate a first simulation result, which is a simulation result of the first heat storage mode including heat storage by the cooling tower,
Based on the simulation conditions, calculate a second simulation result, which is a result of a simulation of a second heat storage mode including heat storage by the refrigerator,
determining one of the first heat storage mode and the second heat storage mode based on the first simulation result and the second simulation result;
Method of calculation. a heat source well facility comprising a hot water well, a cold water well, a well-side pipe connecting the hot water well and the cold water well, and a pump provided in the well-side pipe;
A geothermal heat utilization system comprising a cooling tower, a refrigerator, and a heat storage auxiliary facility having a refrigerant circuit connected to at least one of the cooling tower and the refrigerator and capable of exchanging heat with the well-side piping A method for determining a heat storage mode when storing heat,
get the simulation conditions,
Based on the simulation conditions, calculate a first simulation result, which is a simulation result of the first heat storage mode including heat storage by the cooling tower,
Based on the simulation conditions, calculate a second simulation result, which is a result of a simulation of a second heat storage mode including heat storage by the refrigerator,
A program for causing a computer to execute a method of determining one of the first heat storage mode and the second heat storage mode based on the first simulation result and the second simulation result. a mode information storage unit storing heat storage mode information about the heat storage mode determined by the computing device according to any one of claims 1 to 7;
and an operation control unit that operates the geothermal heat utilization system based on the heat storage mode stored in the mode information storage unit. An outside air condition acquiring unit for acquiring actual outside air conditions,
The control device according to claim 10, wherein the operation control unit operates the geothermal heat utilization system based on the heat storage mode associated with the actual outside air condition acquired by the outside air condition acquisition unit. Storing heat storage mode information about the heat storage mode determined by the computing device according to any one of claims 1 to 7,
operating the geothermal heat utilization system based on the stored heat storage mode;
control method. Storing heat storage mode information about the heat storage mode determined by the computing device according to any one of claims 1 to 7,
A control program for causing a computer to execute a method of operating the geothermal heat utilization system based on the stored heat storage mode.

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