KR20230164712A - calculating device, calculation method, program, control device, control method, control program - Google Patents

Abstract

The calculation device of the present disclosure is a calculation device that determines a heat storage mode when heat storage is performed in a ground heat utilization system including heat source well equipment, a cooling tower, a refrigerator, and heat storage auxiliary equipment with a refrigerant circuit, and acquires simulation conditions. an acquisition unit that calculates, based on simulation conditions, a first simulation result that is the result of a simulation of a first heat storage mode including heat storage by a cooling tower; and, based on simulation conditions, heat storage by a refrigerator. A second calculation unit that calculates a second simulation result, which is a result of a simulation of a second thermal storage mode, based on the first simulation result and the second simulation result, one of the first thermal storage mode and the second thermal storage mode and a decision unit that determines the heat storage mode.

Description

calculating device, calculation method, program, control device, control method, control program

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

This application claims priority to Patent Application No. 2021-78637 filed on May 6, 2021, and the contents thereof are incorporated herein.

Recently, a geothermal heat utilization system that uses groundwater as a hot or cold heat source has been proposed.

For example, in Patent Document 1, a geothermal heat utilization system is proposed that includes a heat source well facility having a hot water well, a cold water well, and well-side piping connecting them, and a heat source device having a refrigeration cycle including a condenser and an evaporator. . In this ground heat utilization system, it is possible to switch between the storage cooling heat operation mode and the cooling heat operation mode depending on the season. In the storage cooling heat operation mode, heat is exchanged between the evaporator of the heat source device and the well side piping, and simultaneously, heat is exchanged between the condenser of the heat source device and the load. In the anti-cooling heat operation mode, heat is exchanged between the condenser of the heat source device and the well side piping, and heat is exchanged between the evaporator of the heat source device and the load.

Japanese Patent Publication No. 2018-173257

However, in the ground heat utilization system as described in Patent Document 1, it is always desired to perform more efficient operation. For example, environmental conditions such as temperature and humidity are changing day by day. For this reason, it is desirable to operate the ground 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 was made to solve the above problems, and its purpose is to provide a calculation device, calculation method, program, control device, control method, and control program that can be operated in a heat storage mode suitable for environmental conditions.

In order to solve the above problem, the calculation device 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 installed in the well side pipe; Calculation for determining a heat storage mode when performing heat storage in a ground heat utilization system including a cooling tower, a refrigerator, and a heat storage auxiliary facility connected to at least one of the cooling tower and the refrigerator and having a refrigerant circuit capable of exchanging heat with the well side piping. An apparatus, comprising: an acquisition unit that acquires simulation conditions; a first calculation unit that calculates, based on the simulation conditions, a first simulation result that is a result of a simulation of a first heat storage mode including heat storage by the cooling tower; A second calculation unit that calculates a second simulation result, which is a result of a simulation of a second heat storage mode including heat storage by the refrigerator, based on simulation conditions, and based on the first simulation result and the second simulation result , and a determination unit that determines one of the first heat storage mode and the second heat storage mode.

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 installed in the well-side pipe, a cooling tower, a refrigerator, and the cooling tower. and a heat storage auxiliary facility connected to at least one side of the refrigerator and having a refrigerant circuit capable of exchanging heat with the well side pipe. A calculation method for determining a heat storage mode when heat storage is performed in a ground heat utilization system, wherein simulation conditions are acquired. And, based on the simulation conditions, calculate a first simulation result that is a result of a simulation of a first heat storage mode including heat storage by the cooling tower, and based on the simulation conditions, calculate a first simulation result that includes heat storage by the refrigerator. Calculate a second simulation result, which is a result of simulation of two heat storage modes, and determine one of the first heat storage mode and the second heat storage mode based on the first simulation result and the second simulation result. do.

The program related 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 installed in the well-side pipe, a cooling tower, a refrigerator, and the cooling tower and A method of determining a heat storage mode when performing heat storage in a geothermal heat utilization system including a heat storage auxiliary facility connected to at least one side of the refrigerator and having a refrigerant circuit capable of heat exchange with the well side pipe, comprising: acquiring simulation conditions, Based on the simulation conditions, a first simulation result that is a result of a simulation of a first heat storage mode including heat storage by the cooling tower is calculated, and based on the simulation conditions, a second heat storage including heat storage by the refrigerator is calculated. A method of calculating a second simulation result, which is a result of a simulation of a mode, and 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. Run it on your computer.

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 schematic diagram showing the schematic configuration of a ground heat utilization system according to an embodiment of the present disclosure.
Figure 2 is a block diagram showing the functional configuration of a ground heat utilization system according to an embodiment of the present disclosure.
FIG. 3 is a diagram showing the flow of groundwater and media when operating in a cooling operation mode in the ground 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 a heating operation mode in the ground heat utilization system according to the embodiment of the present disclosure.
FIG. 5 is a diagram showing the flow of groundwater and media when cold water heat storage operation is performed in the first heat storage mode in the ground heat utilization system according to the embodiment of the present disclosure.
FIG. 6 is a diagram showing the flow of groundwater and media when cold water heat storage operation is performed in the second heat storage mode in the ground heat utilization system according to the embodiment of the present disclosure.
7 is a flowchart showing the flow of the calculation method according to the embodiment of the present disclosure.
Figure 8 is a flowchart showing the flow of the control method according to the embodiment of the present disclosure.
FIG. 9 is a diagram showing an example of a hardware configuration of a computer included in a computing device and a control device according to an embodiment of the present disclosure.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment concerning this disclosure will be described using drawings. In all drawings, identical or equivalent components are given the same reference numerals, and common descriptions are omitted.

<Embodiment>

Embodiments of the underground heat utilization system according to the present disclosure will be described with reference to FIGS. 1 to 8.

(Configuration of ground heat utilization system)

As shown in FIGS. 1 and 2, the ground heat utilization system 1 includes a heat source well facility 10, a heat storage auxiliary facility 100, a heat exchanger 4 (see FIG. 1), and a calculation 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, a well side pipe 3, and a pump 31.

The hot water well 21 and the cold water well 22 each extend from the ground into the aquifer.

The hot water well 21 and the cold water well 22 are each configured to take groundwater from the aquifer or return groundwater to the aquifer from the inside of the hot water well 21 and the cold water well 22.

The heat source well facility 10 pumps groundwater from one of the hot water well 21 and the cold water well 22, performs heat exchange in the heat exchanger 4, and then pumps groundwater from one of the hot water well 21 and the cold water well 22. Inject groundwater after heat exchange into the side. In other words, the heat source well facility 10 pumps groundwater from the hot water well 21 and pours it into the cold water well 22, and the case of pumping groundwater from the cold water well 22 and pouring it into the hot water well 21. It has two driving modes.

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 into the inside of the hot water well 21 and the cold water well 22.

For example, the well side pipe 3 may have both ends immersed in groundwater 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 installed in the well side pipe 3.

Pumps 31 are installed at both ends of the well side pipe 3, respectively.

The 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 pump 31 may be installed at both ends of the well side pipe 3 and may be immersed in groundwater in the hot water well 21 and the cold water well 22.

For example, the pump 31 may change its output by inverter control.

The heat exchanger 4 exchanges heat between groundwater in the well side pipe 3 and the medium on the heat storage auxiliary facility 100 side.

For example, the heat exchanger 4 exchanges heat between groundwater pumped from the hot water well 21 and flowing through the well-side pipe 3 and the medium on the heat storage auxiliary equipment 100 side. Ground water after heat exchange has been performed 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 groundwater pumped from the cold water well 22 and flowing through the well-side pipe 3 and the medium on the side of the heat storage auxiliary facility 100. Groundwater after heat exchange has been performed 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 installed on the ground in the middle of the well side piping 3.

When the water that has passed through the heat exchanger (4) is hot water, heat storage of hot water is performed in the hot water well (21).

When the water that has passed through the heat exchanger (4) is cold water, cold water heat storage is performed in the cold water well (22).

Here, “warm water” refers to water with a temperature higher than the initial ground temperature of the groundwater in the aquifer, and “cold water” refers to water with a temperature lower than the initial ground temperature of the groundwater in the aquifer.

For example, the initial ground temperature of groundwater in an aquifer is 18°C.

(Configuration of heat storage auxiliary equipment)

The heat storage auxiliary facility 100 uses a medium that performs heat exchange with groundwater in the well side pipe 3 in the heat exchanger 4.

The heat storage auxiliary equipment 100 includes at least a cooling tower 130, a heat source 110, and a refrigerant circuit 101.

In this embodiment, the heat storage auxiliary equipment 100 includes, for example, a heat source device 110, an air conditioner 120, a cooling tower 130, and a refrigerant circuit 101.

The heat storage auxiliary equipment 100 may, for example, constitute an air conditioning system including a heat source 110 and an air conditioner 120.

For example, the heat source 110 may be a heat pump equipped with a condenser, evaporator, compressor, etc.

The air conditioner 120 performs air conditioning in the space where the air conditioner 120 is installed by exchanging heat with a medium (cold water) supplied from the heat source 110.

The cooling tower 130 cools the cooling water by the heat of vaporization when the cooling water is vaporized by contacting the atmosphere. The cooling tower 130 circulates cooling water between the second heat exchanger 140 and the cooling tower 130 .

The second heat exchanger 140 performs heat exchange 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 in the cooling tower 130.

The refrigerator 150 is comprised of the heat source 110 and the cooling tower 130.

The refrigerant circuit 101 forms a medium flow path between the heat exchanger 4, the heat source 110, the air conditioner 120, and the second heat exchanger 140.

The refrigerant circuit 101 is properly equipped with a pump, open/close valve, etc. (not shown), and is connected between the heat exchanger 4, the heat source 110, the air conditioner 120, and the second heat exchanger 140 depending on the operation mode. The media is circulated through a predetermined route.

For example, the heat storage auxiliary equipment 100 is capable of switching 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, cooling operation is performed on the heat storage auxiliary equipment 100 side, and hot water heat storage is performed in the hot water well 21. In this case, the pump 31 of the cold water well 22 pumps groundwater and sends it to the heat exchanger 4. The heat exchanger 4 performs heat exchange between groundwater in the well side pipe 3 and a medium flowing through the refrigerant circuit 101 on the side of the heat storage auxiliary facility 100. On the heat storage auxiliary equipment 100 side, the medium (cooling water) cooled by heat exchange in the heat exchanger 4 is sent to the heat source 110, and from the heat source 110 to the medium (cold water) on the air conditioner 120 side. heat is exchanged with Accordingly, the air conditioner 120 connected to the heat source 110 can perform indoor cooling. Meanwhile, the medium (cooling water) heated by heat exchange in the heat source 110 is sent back to the heat exchanger 4, cooled, and then circulated. In the heat exchanger 4, ground water is heated by performing heat exchange between the heated medium and ground water flowing within the well side pipe 3. Heat storage of hot water is achieved by pouring 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, heating operation is performed on the heat storage auxiliary equipment 100 side, 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 pumps groundwater (hot water) and sends it to the heat exchanger 4. The heat exchanger 4 performs heat exchange between groundwater in the well side pipe 3 and a medium flowing through the refrigerant circuit 101 on the side of the heat storage auxiliary facility 100. On the side of the heat storage auxiliary equipment 100, the medium heated by heat exchange in the heat exchanger 4 is sent to the heat source device 110 and undergoes heat exchange in the heat source device 110. Accordingly, the air conditioner 120 connected to the heat source 110 can heat the room. Meanwhile, the medium cooled by heat exchange in the heat source 110 is sent back to the heat exchanger 4 and circulated. In the heat exchanger 4, ground water is cooled by performing heat exchange between the cooled medium and ground water flowing within the well side pipe 3. Cold water heat storage is achieved by pouring cooled groundwater into the cold water well 22 through the well side pipe 3.

In addition, the ground heat utilization system 1 can perform cold water heat storage in the cold water well 22 by cooling groundwater without performing a heating operation in winter (or at night) when the outside temperature is low.

When performing cold water heat storage, the ground heat utilization system 1 stores heat 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. Mode switching is possible.

The ground heat utilization system 1 performs cold water storage in either the first heat storage mode or the second heat storage mode under the control of the control device 300, which will be described later.

(Configuration of the 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 vaporized by contact with the atmosphere in the cooling tower 130 is sent to the second heat exchanger 140. In the second heat exchanger 140, heat exchange between the coolant and the medium of the refrigerant circuit 101 is performed. That is, the second heat exchanger 140 cools the medium of the refrigerant circuit 101 using the cooling water cooled in the cooling tower 130. The cooled medium is sent to the heat exchanger (4), where it exchanges heat with ground water in the well side pipe (3). In this case, the pump 31 of the hot water well 21 pumps groundwater (hot water) and sends it to 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.

(Configuration of the second heat storage mode)

As shown in FIG. 6 , in the second heat storage mode, the cooling tower 130 and the heat source device 110 are used as the refrigerator 150. In this case, the pump 31 of the hot water well 21 pumps groundwater (hot water) and sends it to the heat exchanger 4. On the heat storage auxiliary equipment 100 side, the medium is sent to the heat source 110 from the second heat exchanger 140 side. The heat source 110 cools the medium (cold water) sent from the heat exchanger 4 by heat exchange. The medium (cold water) cooled by heat exchange in the heat source 110 is sent to the heat exchanger 4. In the heat exchanger 4, ground water is cooled by performing heat exchange between the cooled medium and ground water flowing within the well side pipe 3. Cold water heat storage is achieved by pouring cooled groundwater into the cold water well 22 through the well side pipe 3. Meanwhile, the medium (cooling water) whose temperature has risen through heat exchange with the medium (cold water) on the heat exchanger 4 side in the heat source 110 is sent to the second heat exchanger 140. The second heat exchanger 140 cools the medium sent from the heat source 110 by exchanging heat with the cooling water cooled in the cooling tower 130.

(Configuration of calculating device)

As shown in FIG. 2, the calculation device 200 determines the heat storage mode when heat storage is performed in the ground heat utilization system 1.

When performing cold water thermal storage in the ground heat utilization system 1, the calculation device 200 simulates in advance whether it is appropriate to perform cold water thermal storage in either the first thermal storage mode or the second thermal storage mode. Perform. The calculation device 200 determines one of the first heat storage mode and the second heat storage mode based on the results of the simulation calculation.

In this embodiment, the calculation device 200 is provided in the ground heat utilization system 1. That is, the calculation device 200 is installed at the installation location of the ground heat utilization system 1.

The calculation device 200 may be installed together with the control device 300, for example.

The calculation device 200 is a part of the control device 300 and may be built into the control device 300.

Additionally, the calculation device 200 may be installed in a location different from the installation location of the ground heat utilization system 1.

For example, the calculation device 200 may be installed to enable data communication with the control device 300 through an external network using a wired or wireless network.

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

The acquisition unit 210 acquires simulation conditions.

The acquisition unit 210 acquires simulation conditions that serve as a premise for simulation calculations performed to determine the thermal storage mode.

Examples of simulation conditions to be acquired include outdoor conditions.

The outdoor conditions may include, for example, at least one of outdoor temperature and outdoor humidity.

The outdoor air conditions may include both outdoor temperature and outdoor humidity.

In this embodiment, the outdoor air conditions include, for example, the outdoor temperature (range) and the outdoor humidity (range) assumed in the place (area) where the ground heat utilization system 1 is installed.

The simulation conditions acquired by the acquisition unit 210 may include positive water temperature and upper limit water pouring temperature. The pumping water 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 value of the temperature of groundwater poured into the cold water well 22 when cold water thermal storage is performed in the cold water well 22. The upper limit pouring water temperature is, for example, an upper limit value of the pouring water 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 acquisition unit 210 acquires the outside air temperature and outside air humidity as virtual outdoor air conditions for performing the simulation.

The acquisition unit 210 may include specifications of devices constituting the heat source well facility 10 and the heat storage auxiliary facility 100 as simulation conditions.

Specifications of the equipment include, for example, the pump 31 of the heat source well facility 10, the heat source device 110 of the heat storage auxiliary facility 100, the cooling tower 130, and the pump (not shown) installed in the refrigerant circuit 101. , specifications of the medium on the heat storage auxiliary equipment 100 side, etc. may be included.

The acquisition unit 210 may acquire simulation conditions by, for example, receiving input from an operator, such as the numerical value of each simulation condition.

For example, the acquisition unit 210 may acquire simulation conditions from a database that stores the specifications of each device constituting the heat source well facility 10 and the heat storage auxiliary facility 100.

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.

The first calculation unit 220 performs a simulation calculation when the operation is performed 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 for the case where cold water heat storage is performed in the cold water well 22 by cooling the medium using the cooling tower 130.

The first calculation unit 220 performs simulation calculations multiple times by varying the temperature and humidity within the ranges of the virtual outdoor temperature and virtual outdoor humidity obtained as virtual outdoor air conditions.

The first calculation unit 220 calculates (outputs) a first simulation result that is a result obtained by simulation calculation.

The first calculation unit 220 is a first simulation result obtained by simulation calculation and may include at least one of water temperature, heat storage amount, and power. The pouring water temperature is the temperature of groundwater poured into the cold water well 22 from the well side pipe 3 that has exchanged heat with the refrigerant circuit 101. The amount of heat storage is the amount of energy obtained by pouring cold water into the well 22 from the well side pipe 3 that has exchanged heat with the refrigerant circuit 101. The power required to perform heat storage refers to the pump 31 on the heat source well facility 10 side and various pumps (not shown) installed in the refrigerant circuit 101 of the heat storage auxiliary facility 100, which are required to store heat in the first heat storage mode. , This is the power to operate the cooling tower 130.

The second calculation unit 230 calculates a simulation of the second heat storage mode including heat storage by the refrigerator 150 (heat source unit 110 and cooling tower 130) based on the simulation conditions acquired by the acquisition unit 210. carry out.

The second calculation unit 230 performs simulation calculations when the operation is performed 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 for the case where cold water heat storage is performed in the cold water well 22 by cooling the medium using the refrigerator 150.

The second calculation unit 230 performs simulation calculations multiple times by varying the temperature and humidity within the ranges of the virtual outdoor temperature and virtual outdoor air humidity obtained as virtual outdoor air conditions.

The second calculation unit 230 calculates (outputs) a second simulation result, which is a result obtained by simulation calculation.

The second simulation result calculated by the second calculation unit 230 may include at least one of the water temperature, heat storage amount, and power.

The second calculation unit 230 may calculate the second simulation result 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 power calculated by the second calculation unit 230 is the pump 31 on the heat source well facility 10 side, various pumps (not shown) installed on the refrigerant circuit 101 side of the heat storage auxiliary facility 100, and the cooling tower 130. ), which is the power for operating the heat source 110.

In the first heat storage mode, the temperature calculation unit 240 determines the limit external temperature at which the injection temperature of groundwater injected into the cold water well 22 from the well side pipe 3 that has exchanged heat with the refrigerant circuit 101 becomes the upper limit injection temperature. Calculate

The decision unit 250 determines which of the first thermal storage mode and the second thermal storage mode is 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. Decide on one thermal storage mode.

For example, the decision unit 250 may compare the water temperature, heat storage amount, and power included in the first simulation result and the second simulation result.

The decision unit 250 determines, as a result of comparing the first simulation result and the second simulation result, the one with the lower water temperature among the first heat storage mode and the second heat storage mode, for example, as the heat storage mode.

When 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 decision unit 250 may determine the lower water pouring temperature as the heat storage mode.

As a result of comparing the first simulation result and the second simulation result, the decision unit 250 determines the one with the greater amount of heat storage as the heat storage mode, for example, among the first heat storage mode and the second heat storage mode.

The determination unit 250 may be based on, for example, a comparison result between the first simulation result and the second simulation result, for example, a comparison result of 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 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 decision unit 250 determines the power required to store heat in the first heat storage mode and heat storage in the second heat storage mode. Based on the results of comparing the required power, the one with the smaller power can be determined as the heat storage mode.

Additionally, the decision unit 250 selects the second heat storage mode as the heat storage mode under the condition of the virtual outside air temperature being equal to or higher than the critical 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 temperature is high, cooling in the cooling tower 130 may not be sufficiently performed, and the water pouring temperature may become higher than the upper limit water pouring temperature.

The decision unit 250 compares the current cold water heat storage amount with a predetermined target cold water heat storage amount (for example, performing cold water heat storage by predicting that the cold water heat storage amount and hot water heat storage amount are equal), and produces a large amount of cold water. A second heat storage mode in which heat storage is possible may be determined as the heat storage mode. This is because there is a possibility that a sufficient amount of cold water heat storage may not be obtained in the first heat storage mode using the cooling tower 130.

In the decision unit 250, as a result of comparing the first simulation result and the second simulation result, the heat storage mode determined among the first heat storage mode and the second heat storage mode is related to the virtual outdoor air condition when the simulation calculation is performed. Generate mode information.

The determination unit 250 may generate heat storage mode information that relates the determined heat storage mode to the virtual outdoor temperature (for example, every 1°C) on which the simulation calculation was performed.

The determination unit 250 may generate heat storage mode information that relates the determined heat storage mode to the virtual outdoor humidity (for example, every 5%) on which the simulation calculation was performed.

The determination unit 250 may generate heat storage mode information that relates the determined heat storage mode to each combination of virtual outside air temperature and virtual outside air humidity for which simulation calculations were performed.

The decision unit 250 outputs the generated heat storage mode information to the control device 300, which will be described later.

The operation of the calculation device 200 of this embodiment will be described.

The operation of the calculation device 200 corresponds to the embodiment of the calculation method.

The calculation device 200 performs each step shown in FIG. 7 .

First, the acquisition unit 210 acquires simulation conditions (ST01: step for acquiring simulation conditions). The acquisition unit 210 acquires outdoor conditions (outdoor temperature, outdoor humidity) as simulation conditions.

For example, positive water temperature and upper limit water temperature can be further obtained as simulation conditions.

For example, the acquisition unit 210 uses the pump 31 of the heat source well facility 10, the heat source 110 of the heat storage auxiliary facility 100, the cooling tower 130, and the refrigerant circuit 101 as simulation conditions. Specifications of the installed pump (not shown) and the medium on the heat storage auxiliary equipment 100 side can also be obtained.

Following implementation 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 performs a simulation calculation of the first heat storage mode including heat storage by the cooling tower 130. Obtain simulation results (ST02: Step for performing simulation calculation in the first heat storage mode).

Following 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 performs a second heat storage mode. Obtain simulation results (ST03: Step for performing simulation calculation in the second heat storage mode).

Following execution of ST03, the decision 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 first simulation result obtained in ST02 and the second simulation result obtained in ST03. Compare the power (ST04: Step to compare the power of the first heat storage mode and the second heat storage mode).

In addition, following execution of ST02, the temperature calculation unit 240 calculates the limit external temperature at which the water injection temperature for the cold water well 22 becomes the upper limit water injection temperature when heat storage is performed in the first heat storage mode (ST05: Step for calculating the critical outdoor temperature in the first heat storage mode). ST05 can be performed in parallel with ST04 and ST05, or before or after ST03 and ST04.

After completion of ST04 and ST05, the decision unit 250 determines the first thermal 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. and the second thermal storage mode is determined (ST06: step for determining the thermal storage mode). The decision unit 250 may determine a heat storage mode to increase energy saving by comparing the water temperature, heat storage amount, and power included in the first simulation result and the second simulation result.

The decision 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 temperature, for example, in a virtual outside air temperature that is higher than the limit outside air temperature.

After performing ST06, the decision unit 250 generates thermal storage mode information that relates the determined thermal storage mode to each virtual outdoor air condition (ST07: step of generating thermal storage mode information). The decision unit 250 outputs the generated heat storage mode information to the control device 300.

(Configuration of the control unit)

As shown in FIG. 2, the control device 300 controls the operation of the ground heat utilization system 1.

The control device 300 controls the operation of each part of the ground heat utilization system 1 in each of the cooling operation mode, heating operation mode, first heat storage mode, and second heat storage mode.

When performing cold water heat storage, the control device 300 operates in the heat storage mode determined by the calculation device 200.

The control device 300 operates the ground heat utilization system 1 in a heat storage mode corresponding to the actual outdoor air conditions, based on the actual outdoor air conditions during operation.

The control device 300 includes a mode information storage unit 310, an outdoor condition acquisition unit 320, and an operation control unit 330.

The mode information storage unit 310 stores heat storage mode information output from the calculation device 200.

The mode information storage unit 310 stores heat storage mode information associated with the heat storage mode determined by the calculation device 200 and each virtual outdoor air condition.

The outdoor air condition acquisition unit 320 acquires the actual outdoor air conditions.

The outside air condition acquisition unit 320 acquires at least one of the actual outside air temperature and the actual outside air humidity as actual outside air conditions.

The outside air condition acquisition unit 320 may acquire both the actual outside air temperature and the actual outside air humidity as actual outside air conditions.

The outdoor condition acquisition unit 320 may acquire detected values of the actual outdoor temperature and actual outdoor humidity at the location where the ground heat utilization system 1 is installed using, for example, a thermometer, a hygrometer, etc., as actual outdoor air conditions.

For example, the outdoor condition acquisition unit 320 may acquire values of the actual outdoor temperature and actual outdoor humidity input by the operator.

The outdoor condition acquisition unit 320 may acquire data on the actual outdoor temperature and actual outdoor humidity through an external network.

The operation control unit 330 operates the ground heat utilization system 1 based on the heat storage mode information in the mode information storage unit 310.

The operation control unit 330 operates the ground heat utilization system 1 in either the first heat storage mode or the second heat storage mode based on the heat storage mode information in the mode information storage unit 310 and the actual outdoor air conditions. .

The operation control unit 330 refers to the thermal storage mode information stored in the mode information storage unit 310 and acquires a thermal storage mode associated with the virtual outdoor air condition corresponding to the acquired actual outdoor air condition.

The operation control unit 330 controls each part of the heat source well facility 10 and the heat storage auxiliary facility 100 in the acquired heat storage mode to perform a 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 the embodiment of the control method.

The control device 300 performs each step shown in FIG. 8.

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

After execution of ST11, the operation control unit 330 refers to the thermal storage mode information stored in the mode information storage unit 310 and acquires the thermal storage mode associated with the virtual external air condition corresponding to the acquired actual external air condition (ST12: Step to acquire information on heat storage mode corresponding to actual outdoor conditions). The operation control unit 330 acquires the heat storage mode among the first heat storage mode and the second heat storage mode that the calculation device 200 determines to be appropriate as a result of comparison with the actual outdoor air conditions at the time.

After execution of ST12, the operation control unit 330 operates the ground heat utilization system 1 based on the acquired heat storage mode (ST13: step of operating the ground 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 outdoor air conditions, it performs cold water heat storage in the first heat storage mode.

When the operation control unit 330 acquires the second heat storage mode corresponding to the actual outdoor air conditions, it performs cold water heat storage in the second heat storage mode.

(action and effect)

According to this embodiment, the calculation device 200 displays the first simulation result when performing 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 heat storage mode is determined based on the results of the second simulation when the mode is performed. Accordingly, the calculation device 200 can determine a heat storage mode suitable for environmental conditions with high precision based on simulation. As a result, the ground heat utilization system 1 becomes possible to operate in a heat storage mode suitable for environmental conditions.

Additionally, according to an example of this embodiment, the first simulation result and the second simulation result each include at least one of the water temperature, heat storage amount, and power.

Accordingly, by comparing at least one of the water 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 determination unit ( 250) can appropriately determine the heat storage mode.

Additionally, according to an example of this 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. As a result, the decision unit 250 can select a heat storage mode that requires less power and is more energy-saving.

Additionally, according to an example of this embodiment, the second calculation unit 230 calculates the second simulation result so that the heat storage amount in the second heat storage mode is equal to the heat storage amount in the first heat storage mode. Accordingly, by comparing the first heat storage mode and the second heat storage mode with the heat storage amount being the same in the first heat storage mode and the second heat storage mode, the decision unit 250 can select an appropriate heat storage mode.

Additionally, according to an example of this embodiment, the determination unit 250 determines one of the first heat storage mode and the second heat storage mode in relation to each virtual outdoor air condition of the plurality of virtual outdoor air conditions. In this way, by determining the heat storage mode in relation to the virtual outdoor air conditions, the ground heat utilization system 1 can operate in an appropriate heat storage mode according to the actual outdoor air conditions at the time of operation.

Additionally, according to an example of this embodiment, the virtual outside air condition includes at least one of virtual outside air temperature and virtual outside air humidity.

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

Additionally, according to an example of this embodiment, the decision unit 250 selects the second heat storage mode as the heat storage mode when the virtual outside air temperature is equal to or higher than the critical outside air temperature.

Accordingly, when the actual outside temperature is high and cooling by the cooling tower 130 increases the water temperature, the ground heat utilization system 1 does not perform cooling by the cooling tower 130 but uses the refrigerator 150. By performing heat storage, the increase in water temperature can be suppressed.

According to the calculation method of this 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 precision based on the simulation. As a result, the ground heat utilization system 1 becomes possible to operate in a heat storage mode suitable for environmental conditions.

According to this embodiment, the control device 300 stores the heat storage mode information in the mode information storage section 310 and the mode information storage section 310, which stores heat storage mode information related to the heat storage mode determined by the calculation device 200. It is provided with an operation control unit 330 that operates the ground heat utilization system 1 as a basis.

This makes it possible for the ground heat utilization system 1 to operate in a heat storage mode suitable for environmental conditions determined with high precision based on simulation by the calculation device 200.

Additionally, according to an example of this embodiment, the operation control unit 330 operates the ground heat utilization system 1 based on a heat storage mode related to the actual outdoor air conditions acquired by the outdoor air condition acquisition unit 320.

This makes it possible to operate the ground heat utilization system 1 in a heat storage mode suitable for environmental conditions determined with high precision based on simulation by the calculation device 200. As a result, the ground heat utilization system 1 becomes possible to operate in a heat storage mode suitable for environmental conditions.

According to the control method in this embodiment, it becomes possible to operate the ground heat utilization system 1 in a heat storage mode suitable for environmental conditions determined with high precision based on simulation by the calculation device 200. As a result, the ground heat utilization system 1 becomes possible to operate in a heat storage mode suitable for environmental conditions.

<Variation example>

In addition, in the above-described embodiment, programs for realizing various functions of the calculating device 200 and the control device 300 are recorded on a computer-readable recording medium, and the program recorded on the recording medium is stored on a microcomputer and Various processes are performed by reading and executing them in the same computer system. Here, various processing processes of the CPU of the computer system are stored in a computer-readable recording medium in the form of a program, and the various processes are performed by the computer reading and executing the program. Additionally, computer-readable recording media refers to magnetic disks, magneto-optical disks, CD-ROMs, DVD-ROMs, semiconductor memories, etc. Additionally, this computer program can be transmitted to a computer through a communication line, and the computer that has received this transmission can execute the program.

In the above-described embodiment, an example of the hardware configuration of the computer 190 that executes programs for realizing various functions of the calculation device 200 and the control device 300 will be described.

As shown in FIG. 9, the computer 190 included in each of the calculation device 200 and the control device 300 includes a processor 195, a memory 196, a storage/playback device 197, and an input It is provided with an 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 random access memory (hereinafter referred to as “RAM”) that temporarily stores data used in programs executed in each of the calculation device 200 and the control device 300. It may be a medium of.

For example, the storage/playback device 197 may be a device for storing data in external media such as CD-ROM, DVD, or flash memory, or for reproducing data in external media.

For example, the IO I/F 198 may be an interface for performing input/output of information, etc. between each of the calculation device 200 and the control device 300 and other devices.

For example, the communication I/F 199 may be an interface that performs communication between each of the calculation device 200 and the control device 300 and another device through 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, this 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, substitutions, and changes can be made without departing from the gist of the present disclosure. This embodiment and its modifications are to be included in the scope and gist of the present disclosure, as well as the scope and equivalents thereof.

<Boogie>

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

(1) The first solar calculation device 200 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 heat source well facility (10) including a pump (31) installed in the well-side pipe (3), a cooling tower (130), a refrigerator (150), and at least one of the cooling tower (130) and the refrigerator (150). A calculation device for determining a heat storage mode when heat storage is performed in a ground heat utilization system (1) provided with a heat storage auxiliary facility (100) having a refrigerant circuit (101) connected and capable of heat exchange with the well side pipe (3) ( 200), an acquisition unit 210 for acquiring simulation conditions, and, based on the simulation conditions, calculating a first simulation result that is a result of a simulation of a first heat storage mode including heat storage by the cooling tower 130. A first calculation unit 220 and a second calculation unit 230 for calculating a second simulation result, which is a result of a simulation of a second heat storage mode including heat storage by the refrigerator 150, based on the simulation conditions. and a determination unit 250 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.

This calculation device 200 provides a first simulation result when the first heat storage mode including heat storage by the cooling tower 130 is performed, and a first simulation result when the second heat storage mode including heat storage by the refrigerator 150 is performed. The heat storage mode is determined based on the second simulation results. Accordingly, the calculation device 200 can determine a heat storage mode suitable for environmental conditions with high precision based on simulation. As a result, the ground heat utilization system 1 becomes possible to operate in a heat storage mode suitable for environmental conditions.

(2) The calculating device 200 for the second aspect is the calculating device 200 of (1), wherein the first simulation result and the second simulation result are the wells that exchange heat with the refrigerant circuit 101, respectively. It may include at least one of the water temperature from the side pipe 3 to the cold water well 22, the heat storage amount on the heat source well equipment 10 side, and the power required to perform heat storage.

Accordingly, by comparing at least one of the water 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 determination unit ( 250) can appropriately determine the heat storage mode.

(3) The calculating device 200 according to the third aspect is the calculating device 200 of (1) or (2), wherein the determination unit 250 includes power required to store heat in the first heat storage mode, and 2 The heat storage mode may be determined based on a comparison result of the power required to store heat in the 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 decision unit 250 can select a heat storage mode with higher energy saving.

(4) The calculating device 200 related to the fourth aspect is the calculating device 200 of any one of (1) to (3), and the second calculating unit 230 is configured to determine the amount of heat storage in the second heat storage mode. The second simulation result may be calculated to be equal to the amount of heat storage in the first heat storage mode.

Accordingly, by comparing the first heat storage mode and the second heat storage mode with the heat storage amount in the first heat storage mode and the second heat storage mode being the same, the decision unit 250 can select an appropriate heat storage mode.

(5) The calculation device 200 related to the fifth aspect is the calculation device 200 according to any one of (1) to (4), wherein the determination unit 250 is configured to determine each virtual outdoor air condition of the plurality of virtual outdoor air conditions. Relatedly, one of the first heat storage mode and the second heat storage mode may be determined.

Accordingly, by determining the heat storage mode in relation to the virtual outdoor air conditions, the ground heat utilization system 1 can operate in an appropriate heat storage mode according to the actual outdoor air conditions at the time of operation.

(6) The calculating device 200 related to the sixth aspect is the calculating device 200 of (5), and the virtual outdoor air condition may include at least one of virtual outdoor air temperature and virtual outdoor humidity.

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

(7) The calculating device 200 according to the seventh aspect is the calculating device 200 of (6), wherein, in the first heat storage mode, the well side piping 3 that exchanges heat with the refrigerant circuit 101 It is further provided with a temperature calculation unit 240 that calculates a critical outdoor temperature at which the water temperature for the cold water well 22 becomes the upper limit water water temperature, and the determination unit 250 is configured to calculate the virtual outdoor air temperature at which the water temperature for the cold water well 22 is equal to or higher than the critical outdoor temperature. For temperature, the second heat storage mode may be selected as the heat storage mode.

Accordingly, by selecting the second heat storage mode as the heat storage mode in a virtual outside air temperature where the water temperature is higher than the upper limit water temperature, the ground heat utilization system 1 performs cooling by the cooling tower 130 because the actual outside air temperature is high. When the pouring water temperature increases, the increase in pouring water temperature can be suppressed by performing heat storage using the refrigerator 150 without cooling by the cooling tower 130.

(8) The calculation method for the eighth aspect is 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 It is connected to a heat source well facility 10 including a pump 31 installed in the pipe 3, a cooling tower 130, a refrigerator 150, and at least one of the cooling tower 130 and the refrigerator 150. A calculation method for determining the heat storage mode when heat storage is performed in a ground heat utilization system (1) equipped with a heat storage auxiliary facility (100) having a well side pipe (3) and a heat exchangeable refrigerant circuit (101), simulation conditions Acquire and, based on the simulation conditions, calculate a first simulation result that is a result of simulation of the first heat storage mode including heat storage by the cooling tower 130, and based on the simulation conditions, calculate the refrigerator 150 ) Calculate a second simulation result that is a result of a simulation of a second thermal storage mode including thermal storage by ), and based on the first simulation result and the second simulation result, the first thermal storage mode and the second thermal storage mode Decide on one of the heat storage modes.

Accordingly, by determining the heat storage mode based on the first simulation result and the second simulation result, the heat storage mode suitable for environmental conditions can be determined with high precision based on the simulation. As a result, the ground heat utilization system 1 becomes possible to operate in a heat storage mode suitable for environmental conditions.

(9) The program regarding the ninth sun is 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) equipped with a pump (31), a cooling tower (130), a refrigerator (150), and a well connected to at least one of the cooling tower (130) and the refrigerator (150). As a method of determining the heat storage mode when performing heat storage in a ground heat utilization system (1) equipped with a heat storage auxiliary facility (100) having a side pipe (3) and a refrigerant circuit (101) capable of heat exchange, simulation conditions are acquired. And, based on the simulation conditions, a first simulation result that is a result of a simulation of the first heat storage mode including heat storage by the cooling tower 130 is calculated, and based on the simulation conditions, the refrigerator 150 Calculate a second simulation result, which is a result of a simulation of a second thermal storage mode including thermal storage, and based on the first simulation result and the second simulation result, which of the first thermal storage mode and the second thermal storage mode is calculated. Run the computer through the method for determining one thermal storage mode.

Accordingly, by determining the heat storage mode based on the first simulation result and the second simulation result, the heat storage mode suitable for environmental conditions can be determined with high precision based on the simulation. As a result, the ground heat utilization system 1 becomes possible to operate 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 that stores heat storage mode information regarding the heat storage mode determined by the calculation device 200 in any one of (1) to (7). and an operation control unit 330 that operates the ground heat utilization system 1 based on the heat storage mode stored in the mode information storage unit 310.

This makes it possible for the ground heat utilization system 1 to operate in a heat storage mode suitable for environmental conditions determined with high precision based on simulation by the calculation device 200.

(11) The control device 300 related to the 11th aspect is the control device 300 of (10) and includes an outdoor air condition acquisition unit 320 that acquires actual outdoor air conditions, and the operation control unit 330 includes the above-described operation control unit 330. The ground heat utilization system 1 may be operated based on the heat storage mode related to the actual outdoor air conditions acquired by the outdoor air condition acquisition unit 320.

This makes it possible to operate the ground heat utilization system 1 in a heat storage mode suitable for environmental conditions determined with high precision based on simulation by the calculation device 200. As a result, the ground heat utilization system 1 becomes possible to operate in a heat storage mode suitable for environmental conditions.

(12) The control method according to the twelfth aspect stores heat storage mode information regarding the heat storage mode determined by the calculation device 200 in any one of (1) to (7), and uses the stored heat storage mode based on the heat storage mode. The ground heat utilization system 1 is operated.

This makes it possible to operate the ground heat utilization system 1 in a heat storage mode suitable for environmental conditions determined with high precision based on simulation by the calculation device 200. As a result, the ground heat utilization system 1 becomes possible to operate in a heat storage mode suitable for environmental conditions.

(13) The control program according to the 13th aspect stores heat storage mode information regarding the heat storage mode determined by the calculation device 200 in any one of (1) to (7), and uses the stored heat storage mode based on the heat storage mode. The method of operating the above-described ground heat utilization system 1 is executed on a computer.

This makes it possible to operate the ground heat utilization system 1 in a heat storage mode suitable for environmental conditions determined with high precision based on simulation by the calculation device 200. As a result, the ground heat utilization system 1 becomes possible to operate in a heat storage mode suitable for environmental conditions.

1: Ground heat utilization system
2: well
3: Well side piping
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
120: air conditioner
130: Cooling tower
140: Second heat exchanger
150: Freezer
190: computer
195: processor
196: Memory
197: Memory/playback device
198: I/O I/F
199: Communication I/F
200: calculation device
210: Acquisition Department
220: first calculation unit
230: second calculation unit
240: Temperature calculation unit
250: decision part
300: control device
310: Mode information storage unit
320: External air condition acquisition unit
330: Driving control unit
ST01: Step to acquire simulation conditions
ST02: Step to perform simulation calculation in first heat storage mode
ST03: Step to perform simulation calculation in the second heat storage mode
ST04: Step to compare the power of the first heat storage mode and the second heat storage mode
ST05: Step for calculating the limit outdoor temperature in the first heat storage mode
ST06: Step to determine heat storage mode
ST07: Step to generate heat storage mode information
ST11: Step to acquire actual outdoor conditions
ST12: Step to acquire heat storage mode corresponding to actual outdoor conditions
ST13: Steps to operate the ground heat utilization system in the acquired thermal storage mode

Claims (13)

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 installed in the well side pipe;
Calculation for determining a heat storage mode when performing heat storage in a ground heat utilization system including a cooling tower, a refrigerator, and a heat storage auxiliary facility connected to at least one of the cooling tower and the refrigerator and having a refrigerant circuit capable of exchanging heat with the well side piping. As a device,
acquisition and department to acquire simulation conditions,
a first calculation unit that calculates a first simulation result, which is a result of a simulation 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 result of a simulation 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 calculating device having a. The method of claim 1, wherein the first simulation result and the second simulation result are each:
A calculation device comprising at least one of a temperature of water injected into the cold water well from the well-side piping that exchanges heat with the refrigerant circuit, a heat storage amount on the heat source well equipment side, and a power required to perform the heat storage. The method of claim 1 or 2, wherein the decision unit
The power required to store heat in the first heat storage mode,
Power required to store heat in the second heat storage mode
A calculation device that determines the heat storage mode based on the comparison results. The method according to any one of claims 1 to 3, wherein the second calculation unit calculates the second simulation result so that the heat storage amount in the second heat storage mode is equal to the heat storage amount in the first heat storage mode. A calculating device. The method according to 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 outdoor air condition of the plurality of virtual outdoor air conditions. A calculating device. The calculating device according to claim 5, wherein the virtual outdoor air conditions include at least one of virtual outdoor temperature and virtual outdoor humidity. The method of claim 6, further comprising a temperature calculation unit that calculates a limit external temperature at which the water injection temperature for the cold water well becomes the upper limit water temperature from the well side piping in heat exchange with the refrigerant circuit in the first heat storage mode, ,
The determination unit selects the second heat storage mode as the heat storage mode when the virtual outside air temperature is equal to or higher than the critical outside temperature. 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 installed in the well side pipe;
Calculation for determining a heat storage mode when performing heat storage in a ground heat utilization system including a cooling tower, a refrigerator, and a heat storage auxiliary facility connected to at least one of the cooling tower and the refrigerator and having a refrigerant circuit capable of exchanging heat with the well side piping. As a method,
Acquire simulation conditions,
Based on the simulation conditions, a first simulation result that is a result of a simulation of a first heat storage mode including heat storage by the cooling tower is calculated,
Based on the simulation conditions, calculate a second simulation result that is a result of simulation of a second heat storage mode including heat storage by the refrigerator,
Based on the first simulation result and the second simulation result, determining one of the first heat storage mode and the second heat storage mode
How to calculate. 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 installed in the well side pipe;
A method of determining a heat storage mode when performing heat storage in a ground heat utilization system comprising a cooling tower, a refrigerator, and a heat storage auxiliary facility connected to at least one of the cooling tower and the refrigerator and having a refrigerant circuit capable of exchanging heat with the well side piping. As,
Acquire simulation conditions,
Based on the simulation conditions, a first simulation result that is a result of a simulation of a first heat storage mode including heat storage by the cooling tower is calculated,
Based on the simulation conditions, calculate a second simulation result that is a result of simulation of a second heat storage mode including heat storage by the refrigerator,
Based on the first simulation result and the second simulation result, determining one of the first heat storage mode and the second heat storage mode
A program for executing a method on a computer. a mode information storage unit storing thermal storage mode information regarding the thermal storage mode determined by the calculation device according to any one of claims 1 to 7;
An operation control unit that operates the ground heat utilization system based on the heat storage mode information stored in the mode information storage unit.
A control device having a. The method of claim 10, comprising an external air condition acquisition unit that acquires actual external air conditions,
The control device wherein the operation control unit operates the ground heat utilization system based on the heat storage mode related to the actual external air conditions acquired by the external air condition acquisition unit. Heat storage mode information regarding the heat storage mode determined by the calculation device according to any one of claims 1 to 7 is stored,
A control method for operating the ground heat utilization system based on the stored heat storage mode information. Heat storage mode information regarding the heat storage mode determined by the calculation device according to any one of claims 1 to 7 is stored,
Operating the ground heat utilization system based on the stored heat storage mode information
A control program for executing a method on a computer.