US20130037236A1 - Geothermal facility with thermal recharging of the subsoil - Google Patents

Geothermal facility with thermal recharging of the subsoil Download PDF

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Publication number
US20130037236A1
US20130037236A1 US13/642,235 US201113642235A US2013037236A1 US 20130037236 A1 US20130037236 A1 US 20130037236A1 US 201113642235 A US201113642235 A US 201113642235A US 2013037236 A1 US2013037236 A1 US 2013037236A1
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Prior art keywords
heat
energy transfer
heat exchanger
coolant
transfer facility
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US13/642,235
Inventor
Bernard Saunier
Romain Genet
Raphaël Berdugo
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BSR Tech
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BSR Tech
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Priority to FR1053008 priority Critical
Priority to FR1053008A priority patent/FR2959001B1/en
Application filed by BSR Tech filed Critical BSR Tech
Priority to PCT/FR2011/050719 priority patent/WO2011131885A1/en
Publication of US20130037236A1 publication Critical patent/US20130037236A1/en
Assigned to BSR TECHNOLOGIES reassignment BSR TECHNOLOGIES ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GENET, ROMAIN, BERDUGO, RAPHAEL, SAUNIER, BERNARD
Abandoned legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0052Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using the ground body or aquifers as heat storage medium
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00Hot-water central heating systems
    • F24D3/18Hot-water central heating systems using heat pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00Geothermal collectors
    • F24T10/10Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
    • F24T10/13Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00Heat sources or energy sources
    • F24D2200/11Geothermal energy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00Heat sources or energy sources
    • F24D2200/12Heat pump
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00Heat sources or energy sources
    • F24D2200/16Waste heat
    • F24D2200/20Sewage water
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001Recuperative heat exchangers
    • F28D21/0012Recuperative heat exchangers the heat being recuperated from waste water or from condensates
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/40Geothermal heat-pumps
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/70Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/12Hot water central heating systems using heat pumps
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56Heat recovery units
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/10Geothermal energy
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30Systems combining energy storage with energy generation of non-fossil origin

Abstract

Disclosed is a facility for transferring thermal energy of geothermal origin, for example to contribute to the heating of premises, this facility having the feature of including a heat exchanger placed in a water pipe (31). The principle of the facility is to extract the heat contained in the soil (1) in order to transfer it towards the required place (premises, offices, industrial processes, various equipment, etc.) and to recharge the soil (1) with heat extracted from a liquid used in public service, namely wastewater or drinking water, and/or used in industry.

Description

  • This application concerns a heat-transfer facility using a heat pump, a geothermal source of heat energy, and at least one water line. It is used, in particular, for heating and/or air conditioning of buildings.
  • Geothermal power extracts the heat energy contained in the soil to produce heat or electricity. Geothermal power is commonly classified in three categories: high power (T>100° C.), low power (30° C.<T<100° C.), and very low power (T<30° C.).
  • High-power geothermal facilities allow for the production of electricity. Low-(direct use of deep underground layers of hot water) and very low-power (use via heat pumps) geothermal facilities are used to produce heat.
  • For very low-power geothermal power, one solution for recovering underground heat is to use geothermal probes, e.g., vertical probes. These probes are installed in a well several metres deep in which a coolant circulates in a closed circuit. The soil temperature at these depths is the result of an equilibrium between the exchanges with the atmosphere, the soil surface, and the geothermal flow originating from the depths. At 10 m of depth, it oscillates between 10 and 12° C.; thus, it is relatively stable. When a system draws calories from it, the equilibrium is re-established due to the exchanges with the surrounding soil.
  • However, if there is high demand, over the long term, the system can draw more calories than the soil can provide, as this equilibrium takes a relatively long time to establish. This results in a decrease in the temperature of the soil surrounding the probes, which results in degradation of the performance of the heat pumps over time, and an increase in power consumption. This thermal discharge of the soil may be quite substantial, in particular if there is a substantial imbalance, on a yearly average, between the energy extracted from the soil and the energy reinjected naturally into the soil around the pumps. The natural recharging of the soil by means of geothermal flow does not allow for the reattainment of a temperature equivalent to the initial level.
  • One solution is to resort to other heat sources to “recharge” the calories of the soil. Application FR 2 922 634 proposes a system using solar cells to “recharge” the calories of the soil. However, this method has disadvantages, as the solar cells are not a stable heat source, as their temperature depends essentially on solar irradiance. Furthermore, in the case of a reversible system, i.e., a system that can be used both to provide cold air to cool buildings, in particular in the summer, the system will “recharge” the underground calories when used as a source of cooling.
  • The invention thus more specifically has the objective of eliminating this disadvantage. To this end, the invention proposes a heat energy transfer system comprising:
      • at least one first heat exchanger arranged near a geothermal power source,
      • at least one second heat exchanger arranged near a renewable heat energy source comprising a connection to the water system,
      • one heat pump,
      • a coolant circuit linking the evaporator of the heat pump to the first and second heat exchanger.
  • The invention concerns a geothermal heat energy transfer system, e.g., for the purpose of contributing to the heating of buildings, it comprises a heat exchanger arranged on a water line. The principle of the system is to draw the calories contained in the soil to transfer them to where they are needed (dwellings, offices, industrial processes, miscellaneous equipment, etc.), and to recharge the calories drawn from the soil using a liquid used in public utilities, wastewater, drinking water, and/or industrial water.
  • Advantageously, the water system connection can be a wastewater, industrial, or water conveyance system connection.
  • This water system connection may originate from a cooling network from an industrial process necessitating a cooling circuit.
  • Various exchanger technologies allow for the extraction of calories from water lines, in particular wastewater lines. The latter remain hot during climatic cold periods; they may thus serve as a heat source for the heat pumps. Various other liquids remain hot during the winter: potable water, industrial water, circulating in closed pipes, whether buried or not, may also be used as a heat source.
  • The advantage of this type of calorie source is that it is much more stable over time than solar cells. The temperature of wastewater, for example, varies between 13 and 17° C. in the winter, and 20 and 25° C. in the summer. This calorie source may be described as renewable, as the calories of the wastewater are a by-product of human activity that is otherwise wasted. Due to its relative persistence over time, it is entirely suited to serve as a “base” heat source for a building heating system. The estimated gain is approximately 30% compared to a system using geothermal energy alone.
  • Advantageously, the facility comprises a first mode of operation in which the coolant circuit is a closed-loop circuit arranged such that the coolant circulates in the evaporator of the heat pump, then in the second heat exchanger, and then in the first heat exchanger.
  • In this configuration, the coolant loses calories during its passage through the evaporator of the heat pump, and is then reheated upon passing through the exchanger connected to the water system, and is then passed to the geothermal exchanger before returning to the evaporator. In this way, the fluid is recharged with calories originating from the water, e.g., wastewater, before drawing calories from the soil with the geothermal exchanger. Typically, the fluid can thus go, upon exiting the evaporator, from a temperature of approximately 1° C. to approximately 3° C. in the winter, or from approximately 7° C. to approximately 12° C. in the summer. This heating of the coolant reduces the underground calorie removal, improving the performance of the facility.
  • Advantageously, the facility comprises a second mode of operation, in which the coolant circuit is a closed-loop circuit arranged such that the coolant circulates in the first heat exchanger, and then in the second heat exchanger.
  • In this configuration, the coolant no longer passes through the evaporator of the heat pump, but rather circulates between the second exchanger coupled to the water system and the first exchanger in the soil. In this way, the facility recharges the calories of the soil. This is primarily a summer mode of operation, when the heat requirements are low or nil, and the water temperature, e.g., wastewater temperature, is relatively high.
  • The invention will be better understood based on the description below, which refers to the attached drawings, in which:
  • The sole FIGURE is a schematic representation of a heat transfer facility using geothermal probes and a water line.
  • Very low-power geothermal power is usually used to produce heat and cooling. This is generally done using a heat pump 8 that exchanges heat energy with the soil 1 via one or more geothermal probes 3, e.g., vertical probes.
  • It is known that a heat pump 8 is a thermodynamic machine suited to draw heat in a “cold source” environment, in which the temperature is below that required. It then transfers this energy to a coolant, in general hot water, but also sometimes air.
  • Heat energy is removed at low temperature at the level of the exchanger of the evaporator 7 of the heat pump 8. The heat is then transmitted at a higher temperature to the “hot source” at the level of the exchanger of the condenser 9 of the heat pump.
  • In the example shown, the vertical geothermal probes 3 each comprise a first exchanger 4, placed in a vertical well made in the soil 1 from the surface 2 of the soil. This well may be dozens of metres in depth. This exchanger 4 may then be sealed in the well with a grout (e.g., cement+bentonite). Several types of vertical geothermal probes are known, e.g., “U”, “double U”, or “coaxial”.
  • In the example shown, the heat pump 8 is schematically represented by a rectangular block comprising, on the one side, a subassembly comprising the exchanger of the evaporator 7 and, on the other, a subassembly comprising the exchanger of the condenser 9.
  • A coolant (generally water with the addition of antifreeze) circulates in a closed-loop circuit 40 by means of a circulation pump 6, which circuit 40 comprises:
      • first heat exchangers 4 coupled to a plurality of geothermal probes 3,
      • a second heat exchanger 30 coupled to a wastewater line 31,
      • the evaporator 7 of the heat pump 8,
      • a first pipe 5 a, connecting the outlet of the first exchangers 4 and the inlet of the evaporator 7, a second pipe 5 b, connecting the outlet of the evaporator 7 and the inlet of the second exchanger 30, and a third pipe 5 c, connecting the outlet of the second exchanger 30 coupled to the water line 31, and the inlet of the first exchangers 4, coupled to geothermal probes 3; a fourth pipe 5 d connects the first pipe 5 a to the second pipe 5 b, allowing the heat pump 8 to be bypassed. The circulation pump 6 is mounted on the first pipe 5 a, but it could be mounted on the second or third pipe; what is important is for it to be able to drive the coolant in the two modes of operation of the facility, i.e., that it be mounted on a part common to the circuits implemented in these modes.
  • In a first mode of operation in heating mode, the gate 20 located on the first pipe 5 a is open, and the gate 21 located on the fourth pipe 5 d is closed. In this first mode of operation, the coolant circuits in a closed loop between the first exchangers 4, the evaporator 7 of the heat pump 8, and the second exchanger 30.
  • The coolant draws calories in the soil 1 due to the first exchangers 4, circulates in the first pipe 5 a to the evaporator 7 of the heat pump 8, loses these calories in the exchanger of the evaporator 7, takes the first pipe 5 b to the second exchanger 30, where it is heated, then circulates in the third pipe 5 c to return to the first exchangers 4 of the geothermal probes 3.
  • The coolant exchanges heat with the soil 1, which surrounds the geothermal probes 3, with the water line 31 and the refrigerant fluid of the heat pump 8.
  • If the temperature of the coolant circulating in the geothermal probe(s) 3 is less than the temperature of the soil 1 in contact with the probe(s) 3, the coolant is heated by removing heat from the soil 1 around the geothermal probes 3, thus cooling the soil 1 around these geothermal probes 3.
  • In this case, the facility removes calories from the soil 1, the heat pump 8 removes these calories from the coolant at the level of its evaporator 7, e.g., in order to heat a building and/or preheat domestic hot water. In order to minimise the cooling of the soil 1, the coolant takes the second exchanger 30 coupled to the wastewater line 31 so as to heat up before being directed to the geothermal probes 3.
  • Thus, the thermal discharge of the soil 1 is limited, thus limiting the decrease in temperature of the coolant circulating in the geothermal probes 3.
  • The heat removed by the heat pump 8 is then supplied to the hot source via the exchanger of the condenser 9. This heat is recovered by the fluid of the hot source, which circulates in the tubes 10 and 11 by means of a pump 12.
  • Outside of heating season, i.e., the time of year in which there is no need to heat, corresponding to the summer, the facility coupling the geothermal probes 3 to a wastewater line 31 operates to inject heat into the soil 1.
  • The facility can be placed in this mode of operation, e.g., depending on the external temperature (operation if the external temperature is greater than a set external temperature).
  • When this second mode of operation is activated, the gate 20 mounted on the first pipe 5 a is closed, and the second gate 21 mounted on the fourth pipe 5 d is open, i.e., the heat pump 8 is bypassed.
  • In this second mode of operation, the coolant circulates in a closed loop between the first exchangers 4 of the geothermal probes 3 and the second exchanger 30 connected to the water line 31 via the pump 6 mounted on the first pipe 5 a. The fluid is heated whilst traversing the second exchanging 30, then circulates in the third pipe 5 c, then in the first exchangers 4 of the geothermal probes 3, and returns to the second exchanger 30 by the pipes 5 d and 5 b. As the temperature of the coolant is greater than the temperature of the soil 1 surrounding the vertical geothermal probes 3, as it was heated by the second exchanger 30, the coolant loses heat to the soil 1 surrounding the geothermal probes 3.
  • This mode of operation thus allows thermal recharging of the soil 1 surrounding the geothermal probes 3 due to the heat energy supplied by the wastewater line 31. This thermal recharging allows for at least partial compensation of the thermal discharge of the soil 1 caused by the removal of heat from the soil 1 by the heat pump 8 by means of the geothermal probes 3 during the heating season.

Claims (15)

1. Heat energy transfer facility comprising:
at least one first heat exchanger (4) arranged near a geothermal energy source (1),
at least one second heat exchanger (30) arranged near a renewable heat energy source comprising a water system connection,
a heat pump (8),
a coolant circuit (40) connecting the evaporator (7) of the heat pump to the first and second heat exchanger.
2. Heat energy transfer facility according to claim 1, wherein the water system connection is a wastewater system connection (31).
3. Heat energy transfer facility according to claim 1, wherein the water system connection is a water conveyance system connection.
4. Heat energy transfer facility according to claim 1, wherein the water system connection is an industrial water line.
5. Heat energy transfer facility according to claim 1, wherein the water system connection originates from a refrigeration system of an industrial process necessitating a refrigeration circuit.
6. Heat energy transfer facility according to claim 1, wherein it comprises a first mode of operation in which the coolant circuit (40) is a closed-loop circuit arranged such that the coolant circulates in the evaporator (7) of the heat pump (8), then in the at least one second heat exchanger (30), and then in the at least one first heat exchanger (4).
7. Heat energy transfer facility according to claim 1, wherein it comprises a second mode of operation in which the coolant circuit (40) is a closed-loop circuit arranged such that the coolant circulates in the at least one heat exchanger (4), then in the at least one second heat exchanger (30).
8. Heat energy transfer facility according to claim 2, wherein the heat energy transfer facility is constructed and arranged to operate in a first mode of operation in which the coolant circuit is a closed-loop circuit arranged such that the coolant circulates in the evaporator of the heat pump, then in the at least one second heat exchanger, and then in the at least one first heat exchanger.
9. Heat energy transfer facility according to claim 3, wherein the heat energy transfer facility is constructed and arranged to operate in a first mode of operation in which the coolant circuit is a closed-loop circuit arranged such that the coolant circulates in the evaporator of the heat pump, then in the at least one second heat exchanger, and then in the at least one first heat exchanger.
10. Heat energy transfer facility according to claim 4, wherein the heat energy transfer facility is constructed and arranged to operate in a first mode of operation in which the coolant circuit is a closed-loop circuit arranged such that the coolant circulates in the evaporator of the heat pump, then in the at least one second heat exchanger, and then in the at least one first heat exchanger.
11. Heat energy transfer facility according to claim 5, wherein the heat energy transfer facility is constructed and arranged to operate in a first mode of operation in which the coolant circuit is a closed-loop circuit arranged such that the coolant circulates in the evaporator of the heat pump, then in the at least one second heat exchanger, and then in the at least one first heat exchanger.
12. Heat energy transfer facility according to claim 2, wherein the heat energy transfer facility is constructed and arranged to operate in a second mode of operation in which the coolant circuit is a closed-loop circuit arranged such that the coolant circulates in the at least one heat exchanger, then in the at least one second heat exchanger.
13. Heat energy transfer facility according to claim 3, wherein the heat energy transfer facility is constructed and arranged to operate in a second mode of operation in which the coolant circuit is a closed-loop circuit arranged such that the coolant circulates in the at least one heat exchanger, then in the at least one second heat exchanger.
14. Heat energy transfer facility according to claim 4, wherein the heat energy transfer facility is constructed and arranged to operate in a second mode of operation in which the coolant circuit is a closed-loop circuit arranged such that the coolant circulates in the at least one heat exchanger, then in the at least one second heat exchanger.
15. Heat energy transfer facility according to claim 5, wherein the heat energy transfer facility is constructed and arranged to operate in a second mode of operation in which the coolant circuit is a closed-loop circuit arranged such that the coolant circulates in the at least one heat exchanger, then in the at least one second heat exchanger.
US13/642,235 2010-04-20 2011-03-31 Geothermal facility with thermal recharging of the subsoil Abandoned US20130037236A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR1053008 2010-04-20
FR1053008A FR2959001B1 (en) 2010-04-20 2010-04-20 GEOTHERMAL INSTALLATION WITH THERMAL RECHARGE OF BASEMENT.
PCT/FR2011/050719 WO2011131885A1 (en) 2010-04-20 2011-03-31 Geothermal facility with thermal recharging of the subsoil

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US (1) US20130037236A1 (en)
EP (1) EP2561280B1 (en)
FR (1) FR2959001B1 (en)
WO (1) WO2011131885A1 (en)

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US20110197599A1 (en) * 2008-06-16 2011-08-18 Greenfield Energy Ltd. Thermal Energy System And Method Of Operation
CN105074356A (en) * 2013-03-27 2015-11-18 三菱重工业株式会社 Heat source system, and device and method for controlling same
US9556856B2 (en) 2007-07-06 2017-01-31 Greenfield Master Ipco Limited Geothermal energy system and method of operation
CN107304671A (en) * 2016-04-19 2017-10-31 陈国富 Hole sandstone heat reservori is to well cell cube big flow circulation exploitation supporting technology
US9915247B2 (en) 2007-07-06 2018-03-13 Erda Master Ipco Limited Geothermal energy system and method of operation
US10309693B2 (en) * 2011-03-08 2019-06-04 Erda Master Ipco Limited Thermal energy system and method of operation
US10598412B2 (en) 2016-01-29 2020-03-24 Robert W. Jacobi Supplemental heat transfer apparatus for geothermal systems

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