EP4336124A1 - System und verfahren zur übertragung von wärmeenergie - Google Patents

System und verfahren zur übertragung von wärmeenergie Download PDF

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Publication number
EP4336124A1
EP4336124A1 EP22194662.7A EP22194662A EP4336124A1 EP 4336124 A1 EP4336124 A1 EP 4336124A1 EP 22194662 A EP22194662 A EP 22194662A EP 4336124 A1 EP4336124 A1 EP 4336124A1
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EP
European Patent Office
Prior art keywords
circuit
heat transfer
energy
transfer fluid
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22194662.7A
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English (en)
French (fr)
Inventor
François Ignace GEINOZ
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Wise Open Foundation
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Wise Open Foundation
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Priority to EP22194662.7A priority Critical patent/EP4336124A1/de
Publication of EP4336124A1 publication Critical patent/EP4336124A1/de
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B23/00—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
    • F25B23/006—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect boiling cooling systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/24—Storage receiver heat

Definitions

  • the present invention relates to the field of energy and more particularly the field of capturing thermal energy in a given location, its transport and its storage in another location, with a view to its use, either immediate or deferred in the weather.
  • This heat transfer fluid is generally in a specific state of matter, liquid or gas, and remains in this state throughout the circuit. Maintaining the heat transfer fluid in a specific state of matter is often sought.
  • There fluid temperature varies depending on the location of the circuit. More precisely, the circuit is generally associated with at least one hot source and at least one cold source. The heat transfer fluid passes near the hot source and is heated by this hot source, for example using a heat exchanger. This hot heat transfer fluid is then moved in the circuit and transfers part of its energy to the cold source, for example also by means of a heat exchanger. The transport of heat energy is carried out by changes in the temperature of the fluid in the circuit.
  • the heat transfer fluids used may in particular be liquid (water, brine, etc.) or gas (HFC, NH3, etc.). Some of these fluids require special precautions. Particularly when the liquid is water, it is necessary to take precautions so that the water remains in a liquid state. In fact, the circuit is no longer usable if the water changes state and goes from liquid to solid state. It should be noted that when a thermal energy transfer system is used in an environment in which conditions are close to normal temperature and pressure conditions, this phase transition occurs naturally.
  • the precautions to be taken may include the addition of antifreeze and/or the installation of pipes at a depth to avoid freezing. This can increase the cost, complicate implementation and involve polluting products in particular.
  • Certain other heat transfer fluids may in particular be toxic, explosive, harmful to the environment and/or expensive and their implementation may be relatively complex and also require special precautions.
  • the heat transfer fluid it is advantageous for the heat transfer fluid to have a high volume enthalpy. Indeed, the greater the volume enthalpy, the greater the quantity of energy stored per unit of volume.
  • a large volume enthalpy prevents the quantity of fluid from being very large to transport or store a given quantity of energy. This notably avoids the use of very large diameter tubes, which would pose problems during the concrete implementation of an energy transport system.
  • one way to “transport” or transfer energy in a fluid is to change its temperature.
  • Another way consists of keeping the fluid at a constant temperature, while modifying its state, in particular by changing it from the liquid state to the gaseous state and vice versa.
  • the quantity of energy per unit of mass or specific enthalpy may be more or less significant.
  • Carbon dioxide is currently already used in particular for refrigeration installations such as supermarket refrigerators. In this type of installation, the energy required for refrigeration is generally electrical energy. Thermal energy or heat produced during refrigeration is rarely recovered.
  • the energy transfer circuits need a geothermal resource, for example a groundwater table from which the cold can be extracted in summer and the heat in winter.
  • a geothermal resource for example a groundwater table from which the cold can be extracted in summer and the heat in winter.
  • Such an energy transfer circuit is connected to one or more heat pumps or cooling systems which act as an interface for heating or cooling buildings.
  • a balancing unit is responsible for regulating the system so that a balance between liquid CO 2 and gaseous CO 2 is ensured.
  • the goal of such an energy transfer system is to create synergies by producing cold for a specific application and heat for another application.
  • the present invention aims to resolve the problems of prior art systems by proposing a thermal energy transfer system which is capable, on the one hand, of capturing thermal energy and, on the other hand, of storing it. in the medium or long term. Therefore, unlike existing systems, the captured energy does not need to be used immediately and it is not necessary to balance the production and consumption of this energy. In addition, it is possible to manage the energy stock in a relatively flexible and simple manner due to the elimination of the temporal constraints linked to energy capture and its use.
  • a possible use temperature range could be between 5°C and 30°C and preferably of the order of 12°C to 15°C and a possible use pressure range could be between 40 bars and 60 bars and preferably of the order of 45 to 55 bars.
  • carbon dioxide can change from gas to liquid and vice versa without changing temperature.
  • the energy transfer is carried out by a change of state of the heat transfer fluid or phase change. It is also possible to combine the principle of the invention with the principle used in the systems of the prior art, in which the transfer of energy is carried out by a change in temperature without change in the state of the matter.
  • carbon dioxide as a heat transfer fluid is particularly interesting for another reason. Indeed, as indicated above in connection with current projects using CO 2 , in heat transfer or exchange systems, it is common to use geothermal energy, by drawing heat from the ground, for example in a water table. The ground acts as a hot spring. When heat is drawn from the ground, particularly in ground/water heat pump systems or geothermal heat pumps, essentially two collection systems are used, namely horizontal collection and vertical collection. .
  • the horizontal collection comprises a circuit formed of one or more tubes in which a heat transfer fluid circulates. These tubes are buried at a shallow depth, over a large area.
  • the vertical capture also includes a heat transfer fluid circuit formed of tubes, the tubes being buried vertically.
  • energy can be produced by a source, for example a renewable energy source such as solar energy, captured by an appropriate sensor, then stored in a storage register, so to recharge this register with energy.
  • a source for example a renewable energy source such as solar energy
  • the energy thus stored can be used later, when the needs are greater than external resources in particular.
  • the temperatures used are compatible with storage in the terrestrial register and with the use of this terrestrial register as a cold source.
  • the invention therefore makes it possible to store energy in the medium or long term, in particular in the terrestrial register. This is particularly interesting because certain renewable energies such as solar energy are available in the greatest quantities at the time when they are least useful. It is therefore advantageous to be able to capture solar energy in summer, when it is abundant, and to store it to be able to use it in winter, when it is scarce, but the energy demand is high.
  • energy storage makes it possible to replace the energy that has been taken from the storage register. This makes it possible in particular to avoid the cooling of the land in which horizontal geothermal probes are installed. This also makes it possible to use bodies of water or groundwater as a storage register.
  • the system according to the invention can also be used as an element providing thermal energy to its environment.
  • a heat exchanger as used in the invention can be used as an element providing energy to its environment has several advantages. It can in particular be used in places or in volumes from which the energy drawn is not considered negligible compared to the energy available. In conventional sensor systems, probes must be sufficiently far from each other so that they do not influence each other. Otherwise, the energy taken by one of the probes would cool the ground near another probe, thus reducing the overall efficiency.
  • the storage register is recharged with energy regularly, so that it is possible to take energy from probes close to each other.
  • This makes it possible in particular to arrange several probes close to each other, which allows installation in places where space is limited.
  • the sensors are horizontal in particular, they can only be placed in areas in which the available land is large enough. If geothermal sensors are to be installed in areas with little land, vertical probes must be installed, which involves high costs.
  • the probes are installed at shallow depth, which avoids the costs associated with deep drilling.
  • the system according to the invention can also be interesting with regard to the capture of thermal energy coming from an energy source called a hot source.
  • a hot source uses solar energy
  • the system of the invention comprises one or more photovoltaic panels
  • the efficiency of the panels varies as a function of their temperature.
  • the temperature of a photovoltaic panel exceeds 25°C, its efficiency decreases by approximately 0.4% per degree.
  • the panels are covered with snow, their performance can become completely zero.
  • the temperature of the solar panels can be controlled and maintained within a determined range. This range can for example be between 12°C and 15°C. In this way, the efficiency of photovoltaic panels is interesting since the temperature does not exceed 25°C. In the event of snow, this temperature allows the panels to be heated sufficiently to melt the snow and therefore allow the operation of these panels in virtually any climatic condition.
  • the thermal energy transfer system 10 of the invention cooperates with an energy source, called hot source 11 and with an energy sink or storage register or terrestrial register 12, called cold source.
  • This system essentially comprises a circuit 13 in which a heat transfer fluid circulates, a first heat exchanger 14 arranged between the hot source 11 and the heat transfer fluid circuit 13, a second heat exchanger 15 arranged between the cold source or storage register 12 and the heat transfer fluid circuit 13 and a member 16 for setting the heat transfer fluid in motion in the circuit.
  • the hot source 11 is the sun and its energy is captured by at least one solar panel 17 of the thermal solar panel type. It is advantageous, for reasons of cost and respect for the environment in particular, for the hot source to be a renewable energy source.
  • the potential energy sources that can be used include heat from the sun, thermal energy produced by geothermal energy, recovery of losses from buildings, industrial or domestic installations, etc. Other energy sources, and in particular non-renewable energy sources, can also be used.
  • the temperature that the hot source can reach must be above a threshold value called vaporization temperature. However, it is not necessary that the temperature of the hot source always be above this vaporization temperature.
  • the vaporization temperature is the temperature at which the heat transfer fluid undergoes a phase change from the liquid state to the gaseous state under the pressure conditions encountered in the heat transfer fluid circuit. This vaporization temperature being the temperature at which the heat transfer fluid circulates in the circuit, it is also called circulation temperature in this text.
  • the first heat exchanger 14 is arranged to transfer heat from the hot source 11 to a portion of the heat transfer fluid which passes in the circuit near the hot source. This heat exchanger 14 is of course adapted to the type of hot source used.
  • the heat transfer fluid circulates in circuit 13 at a given pressure, compatible with a phase change of carbon dioxide, and linked to the vaporization or circulation temperature.
  • the carbon dioxide circulates at a pressure between 45 and 60 bars.
  • the temperature at which a phase transition can occur is between approximately 10°C and 20°C as can be seen from the Figure 5 .
  • a particularly interesting temperature range extends from 12°C to 15°C.
  • There vaporization temperature mentioned above is included in this range. It is common for a solar panel to reach a temperature equal to or higher than this vaporization temperature. It is therefore common for the heat transfer fluid contained in the heat transfer fluid circuit 13 to be partially or totally in the gas phase, near the hot source and/or in the first heat exchanger 14.
  • the terrestrial register plays the role of cold source for the heat transfer fluid circuit, sensor or energy sink and storage register.
  • This terrestrial register 12 can be understood in the broad sense in that it also includes storage in a water reserve such as a lake, a basin, a reservoir, a water table, etc.
  • This cold source must be able to reach a temperature below a threshold value, called liquefaction temperature. Symmetrically with the hot source, however, it is not necessary for the temperature of the cold source to always be lower than this liquefaction temperature.
  • the vaporization temperature and the liquefaction temperature are equal to the phase transition temperature of CO 2 at the pressure of this CO 2 in the heat transfer fluid circuit.
  • This liquefaction temperature is also called circulation temperature.
  • the liquefaction temperature can also be between 12°C and 15°C.
  • the temperature of the earth register When storage is carried out in the terrestrial register, it is relatively common for the temperature of the earth register to be lower than the liquefaction temperature. Thus, the fluid circulating in the circuit near the cold source can pass from the gaseous state to the liquid state.
  • the second heat exchanger 15 is arranged to transfer heat from the fluid contained in the circuit 13 to the storage register.
  • This heat exchanger 15 comprises at least one heat transfer fluid circuit 18 illustrated from the front by the figure 4a and from above by figure 4b .
  • the heat exchanger 15 comprises a heat transfer fluid inlet conduit 19 and a heat transfer fluid outlet conduit 20.
  • This inlet conduit 19 and this conduit outlet 20 are connected by tubes 21.
  • the tubes and the conduits are dimensioned so as to allow the circulation of carbon dioxide at a temperature and at a pressure corresponding to the temperature and pressure of the carbon dioxide in the fluid circuit heat carrier 13.
  • the second heat exchanger 15 comprises a water circuit 22.
  • the water circuit 22 comprises two conduits, namely a water inlet conduit 23 and a water outlet conduit 24, arranged concentrically respectively to the inlet conduit 19 of heat transfer fluid and to the heat transfer fluid outlet conduit 20.
  • These water conduits are connected by a body of water 25 delimited by two panels 26 and closed upwards and downwards so as to be able to circulate water between the two water conduits.
  • the carbon dioxide conduits 19, 20 as well as the carbon dioxide tubes 21 of this heat exchanger are bathed in water and are able to transfer energy to this water.
  • the panels 26 delimiting the body of water can have different configurations, in particular to resist pressure.
  • the second heat exchanger 15 is intended to be placed in the storage register, in particular the land register.
  • the energy carried by carbon dioxide is first transferred to the water and the energy transferred in the water is then transferred to the land register.
  • the second heat exchanger plays a dual role. This can be interesting in that the second heat exchanger is also used as a water storage element.
  • earth or a material ensuring thermal contact between the earth register and the heat exchanger can be placed.
  • This material may in particular be earth, clay, mud, clay, etc.
  • the system further comprises a member 16 for setting the heat transfer fluid in movement in the circuit.
  • the heat transfer fluid is in the form of gas in one part of the circuit and in the form of liquid in another part of the circuit.
  • the member 16 for setting the heat transfer fluid in motion has the function of circulating the heat transfer fluid in the circuit 13.
  • it may take the form of a pump, intended to set a liquid in motion, or of a compressor, intended to set a gas in motion.
  • it is generally more advantageous to use a pump and place it in the area in which the heat transfer fluid is in the liquid phase, rather than a compressor.
  • the circuit includes a pump 27 arranged to circulate the carbon dioxide in the liquid phase.
  • the circulation of carbon dioxide is shown clockwise on the figures 1 to 3 .
  • Circuit 13 includes the first exchanger 14 mentioned above and arranged to transfer heat from the hot source to the heat transfer fluid.
  • This first heat exchanger 14 includes an inlet 28 of liquid carbon dioxide. Due to the capture of energy from the hot source, the liquid carbon dioxide entering the first heat exchanger undergoes a phase change and becomes at least partially gaseous. This gas is evacuated through an outlet 29 of the first heat exchanger 14. This gas then circulates in the heat transfer fluid circuit 13 towards the second heat exchanger 15.
  • This second heat exchanger 15 comprises an inlet 30 arranged to receive carbon dioxide in gaseous form coming from the outlet of the first heat exchanger.
  • This second heat exchanger is in contact with the energy sink, this energy sink taking energy from the heat transfer fluid circulating in this second heat exchanger.
  • Carbon dioxide undergoes a new phase transition to become liquid again, as explained in more detail below.
  • the second heat exchanger 15 allows energy storage in the terrestrial register.
  • This terrestrial register can be used as an energy source for one or more heat pumps 31, in particular water-water type heat pumps.
  • the use of the terrestrial register as a storage element linked to the use of carbon dioxide is particularly interesting for different reasons.
  • the quantity of energy that can be stored with little change in the temperature of the storage location is significant.
  • the average ground temperature at a depth of between 1m and 10m in many places around the globe is compatible with the temperatures required for a phase change of carbon dioxide, at technically achievable pressures.
  • the use of stored energy, in particular by means of heat pumps, makes it possible to reduce the temperature of the storage register in the event that it becomes too high for a change in state of the heat transfer fluid. It is therefore relatively simple to manage the damper temperature to ensure proper operation of the system.
  • the temperature of the earth's register is relatively constant over a temperature range. This temperature range depends on the location on earth, but in regions with temperate climates it is typically between 12°C and 15°C. It is clear that at these temperatures the water used in water-water heat pumps does not freeze and does not need antifreeze. This results in a better calorific value compared to a water-antifreeze mixture, less clogging of the circuits in which this water circulates and a lower cost.
  • the heat transfer fluid circuit 13 comprises an annex branch 32 provided with an inlet 33 materialized by a three-way inlet valve and an outlet 34 also materialized by a three-way valve, called a three-way outlet valve.
  • a third heat exchanger 35 is provided, this being arranged to use as an energy source, energy linked to a building and generally considered as losses. These losses may in particular be heat escaping from the envelope of a building, such as through the walls or the roof.
  • This third heat exchanger 35 has an inlet 36 and an outlet 37, the outlet 37 being connected to the three-way outlet valve.
  • One of the outlets of the valve is used when the carbon dioxide emerges from this third heat exchanger 35 in liquid form and reinjects the liquid carbon dioxide into a zone of the heat transfer fluid circuit 13 in which the carbon dioxide is present. in liquid form.
  • the second outlet of the three-way valve is used when the carbon dioxide emerges from this third heat exchanger 35 in gaseous form and reinjects the gaseous carbon dioxide before the entry of the second heat exchanger 15 in the direction of circulation of the fluid heat carrier.
  • the energy stored in the storage register can be used for example by means of a heat pump 31.
  • the energy recovered from the building envelope is not sent to the second exchanger heat for storage, but is used directly. It is clear that part of the energy can be used directly and another sent to the second heat exchanger for storage. It is also clear that the choice of direct use or storage can be changed at any time, depending on immediate or future energy needs.
  • the heat transfer fluid circuit 13 is similar to the circuit of the figure 2 , apart from the fact that it includes an expansion tank 38 arranged to control and adjust the pressure of the heat transfer fluid in circuit 13.
  • This expansion tank 38 is interesting in particular because it allows a particular use of the system of the invention.
  • FIG 3 illustrates in particular a device allowing the use of energy in a manner similar to the embodiment illustrated by the figure 2 , implementing in particular a heat pump 31.
  • This Figure 3 further illustrates a compressor 39 comprising an inlet connected to a part of the heat transfer fluid circuit 13 in which carbon dioxide circulates under gaseous form.
  • This compressor 39 is associated with a fourth heat exchanger 40 whose function is described below.
  • the pressurized gas emerging from the fourth heat exchanger 40 can be reinjected into the heat transfer fluid circuit 13, as is represented by the broken line arrows on the Figure 3 .
  • the pressure of the reinjected gas being greater than the pressure in the heat transfer fluid circuit, the latter uses the expansion tank 38 to adjust the pressure and the temperature of the carbon dioxide in the circuit.
  • storage register 12 can be used as a power source for users.
  • the use of heat pumps is particularly suitable for using the storage register as an energy source and for bringing this energy to the place of use.
  • the system of the invention operates in the following way.
  • the physical parameters of the heat transfer fluid are set so as to allow a phase transition of this fluid along circuit 13. Maintaining the heat transfer fluid in the conditions corresponding to these parameters is ensured by at least one regulator. pressure and/or temperature.
  • the carbon dioxide in liquid form moves along the circuit and part of this heat transfer fluid is found in the first heat exchanger 14, near the solar panel 17.
  • the heat transfer fluid is carbon dioxide and the pressure is set at approximately 50 bars. At this pressure, a phase transition takes place at a temperature of around 12°C to 15°C.
  • carbon dioxide is in liquid form.
  • the member 16 for setting the heat transfer fluid in motion is located in this part of the circuit and includes the pump 27.
  • the carbon dioxide in liquid form moves along the circuit 13 and part of this heat transfer fluid is found in the first heat exchanger 14, near the solar panel.
  • the first heat exchanger is arranged in such a way that the energy captured by the solar panel is transferred to the heat transfer fluid. This energy has the effect of inducing a phase change in carbon dioxide which goes from the liquid state to the gaseous state, without changing temperature.
  • the temperature of the CO 2 can increase , which allows a greater quantity of energy to be stored.
  • the specific enthalpy that carbon dioxide can contain when its state is at the start of the phase transition on the gaseous side is of the order of 235 kJ/kg.
  • This enthalpy at the end of the phase transition, on the liquid state side, is of the order of 415 kJ/kg.
  • This energy is transported along the heat transfer fluid circuit 13 to the second heat exchanger 15.
  • This is placed in the energy storage location, so as to be able to transfer energy from the heat transfer fluid circuit in the storage register 12.
  • storage can advantageously be done in the terrestrial register.
  • the carbon dioxide in gaseous form is circulated in the second heat exchanger 15, the latter being placed in the ground.
  • the ground can have a temperature generally between 12°C and 15°C while the temperature of the gas circulating in the circuit at this location generally has a higher temperature.
  • the circulation in the second heat exchanger has the effect of transferring part of the energy from the carbon dioxide to the terrestrial register which then serves as energy storage.
  • the ground temperature on the one hand varies little depending on the change in surface temperature and on the other hand is practically always below 15°C.
  • the circulation of carbon dioxide in the second heat exchanger implies that it undergoes a phase change from the gaseous state to the liquid state. Energy is therefore transferred from the gas to the terrestrial register.
  • the gas therefore continues its circulation in circuit 13, returning to the starting point in liquid form.
  • the energy stored in the terrestrial register or storage register can serve as an energy source in particular for one or more heat pumps, in particular water-water type heat pumps, operating in a conventional manner.
  • medium or long term storage such as storage in the terrestrial register proposed by the invention is therefore particularly interesting. .
  • geothermal energy is reinjected into the storage register. This allows good management of stored energy and drawn energy to ensure efficient operation of the system.
  • this circuit may include a by-pass allowing the heat transfer fluid to circulate in a or several chosen branches of the circuit depending on the available temperatures. For example, it is possible to close the circuit passing near the solar panels when the temperature of the panels is below a threshold value, while keeping the building envelope circuit open. The reverse is also of course possible. It is also possible to keep both circuits open or to close the circuits if the temperatures are not compatible with use of the system.
EP22194662.7A 2022-09-08 2022-09-08 System und verfahren zur übertragung von wärmeenergie Pending EP4336124A1 (de)

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EP22194662.7A EP4336124A1 (de) 2022-09-08 2022-09-08 System und verfahren zur übertragung von wärmeenergie

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EP22194662.7A EP4336124A1 (de) 2022-09-08 2022-09-08 System und verfahren zur übertragung von wärmeenergie

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EP4336124A1 true EP4336124A1 (de) 2024-03-13

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6668572B1 (en) * 2002-08-06 2003-12-30 Samsung Electronics Co., Ltd. Air conditioner having hot/cold water producing device
WO2004054827A1 (de) * 2002-12-16 2004-07-01 Daimlerchrysler Ag Klimaanlage, insbesondere für kraftfahrzeuge
EP3578903A1 (de) * 2018-06-05 2019-12-11 Hill Phoenix Inc. Co2-kühlsystem mit magnetischer kühlsystemkühlung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6668572B1 (en) * 2002-08-06 2003-12-30 Samsung Electronics Co., Ltd. Air conditioner having hot/cold water producing device
WO2004054827A1 (de) * 2002-12-16 2004-07-01 Daimlerchrysler Ag Klimaanlage, insbesondere für kraftfahrzeuge
EP3578903A1 (de) * 2018-06-05 2019-12-11 Hill Phoenix Inc. Co2-kühlsystem mit magnetischer kühlsystemkühlung

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