CN111336685B - Super heat pump - Google Patents
Super heat pump Download PDFInfo
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- CN111336685B CN111336685B CN202010274402.6A CN202010274402A CN111336685B CN 111336685 B CN111336685 B CN 111336685B CN 202010274402 A CN202010274402 A CN 202010274402A CN 111336685 B CN111336685 B CN 111336685B
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- 230000008859 change Effects 0.000 claims abstract description 35
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 32
- 239000006096 absorbing agent Substances 0.000 claims description 29
- 239000003638 chemical reducing agent Substances 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000009835 boiling Methods 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 230000001788 irregular Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
-
- 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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention provides a super heat pump, and belongs to the field of energy conversion. The two double-sided phase change heat exchangers and the three compressors adopt five working media to complete the circulation process, and the heat transfer and mass transfer processes are simultaneously completed in the inner space and the outer space of the heat transfer tube of the double-sided phase change heat exchanger. Compared with the prior art, the temperature working range of the super heat pump is obviously improved, and the super heat pump has wider application prospect in industrial or civil occasions.
Description
Technical Field
The invention belongs to the technical field of energy conversion, and particularly relates to a device for transferring heat from a low-temperature object to a high-temperature object.
Background
There are a number of heat exchange processes in the field of energy conversion, according to the second law of thermodynamics: heat can only be spontaneously transferred from a high temperature object to a low temperature object. A certain cost is incurred if heat needs to be transferred from the low temperature object to the high temperature object. The temperature difference is the driving force of heat transfer, and when heat is required to be transferred from a high-temperature object to a low-temperature object, only a conventional heat exchanger is needed, but when the heat is required to be transferred from the low-temperature object to the high-temperature object, equipment such as a heat pump is needed. Conventional heat pump devices are limited by the performance and flow of the circulating working medium, and generally can only work in a temperature range below 100 ℃, and the temperature difference between a high-temperature object and a low-temperature object is not higher than 30 ℃, so that the heat pump can be applied in a narrow range in the whole energy temperature range.
The invention provides a super heat pump cycle, a new heat pump cycle is constructed by utilizing a vapor compression process and an absorption regeneration process, and compared with the prior heat pump technology, the cycle has the following remarkable advantages: (1) the heating temperature can reach more than 150 ℃; (2) the temperature difference between the heat source and the heat sink outlet reaches more than 50 ℃; (3) no other cold source or heat source is needed for assistance.
Compared with the prior art, the temperature working range of the super heat pump is greatly improved, the heat exchange range of heat source and heat sink heat exchange is improved, and the super heat pump has wider application prospect in industrial or civil occasions.
Disclosure of Invention
The invention provides the super heat pump, the heating temperature reaches more than 150 ℃, and in the heat exchange process, no additional cold source or heat source is needed for assistance, so that the heat exchange efficiency and the heat exchange temperature range of high-temperature objects and low-temperature objects in industrial or civil application occasions are obviously improved.
The invention proposes a super heat pump for transferring heat from a low-temperature object to a high-temperature object, which consists of an absorber 1, a two-phase shift heater A2, a two-phase shift heater B3, an evaporator 4, a condenser 5, a compressor A6, a compressor B7, a compressor C8, a heat exchanger A9, a heat exchanger B10, a pressure reducer a11, a pressure reducer B12, a circulation pump a13, a circulation pump B14, a heat sink inlet 15, a heat sink outlet 16, a heat source outlet 17, a heat source inlet 18, a nozzle 19 and an energy exchanger 20.
The internal circulation medium of the super heat pump consists of a medium A, a medium B, a medium C, a medium D and a medium E, wherein the medium A and the medium B form a medium pair, the boiling point of the medium A is lower than that of the medium B, the medium C and the medium D form a medium pair, and the boiling point of the medium C is lower than that of the medium D.
In the super heat pump, an absorber 1 is connected with a compressor A6 and a heat exchanger A9, a double-phase-change heat exchanger A2 is connected with the compressor A6, the heat exchanger A9, a circulating pump A13, a compressor C8 and a heat exchanger B10, a double-phase-change heat exchanger B3 is connected with a circulating pump B14, the heat exchanger B10, a pressure reducer B12 and a compressor B7, a condenser 5 is connected with the compressor B7, the pressure reducer B12, a double-phase-change heat exchanger B3 and a pressure reducer A11, an evaporator 4 is connected with the compressor C8 and the pressure reducer A11, the compressor A6 is connected with the absorber 1 and the double-phase-change heat exchanger A2, the compressor B7 is connected with the double-phase-change heat exchanger B3 and the condenser 5, the compressor C8 is connected with an evaporator 4 and the double-phase-change heat exchanger A2, the heat exchanger A9 is connected with the absorber 1, the double-phase-change heat exchanger A2 and the circulating pump A13, the heat exchanger B10 is connected with the circulating pump B14, the double-phase-change heat exchanger B3 and the double-phase-change heat exchanger A2.
In the super heat pump, a medium A leaves the double-phase-change heat exchanger A2 and then enters the absorber 1 through the compressor A6. After leaving the absorber 1, the mixture of medium a and medium B passes through the heat exchanger A9, the two-phase shift converter A2 and the circulation pump a13 in this order, and then returns to the absorber 1 through the heat exchanger A9 again, thus circulating reciprocally. Medium C leaves the double phase change heat exchanger B3 and then passes through the condenser 5, the evaporator 4 and the compressor C8 in order and then enters the double phase change heat exchanger A2. The mixture of medium C and medium D leaves the double phase change heat exchanger A2 and returns to the double phase change heat exchanger A2 after passing through the heat exchanger B10, the double phase change heat exchanger B3, the circulating pump B14 and the heat exchanger B10. Medium E leaves condenser 5 and returns to condenser 5 after passing through compressor B7, two-phase heat exchanger B3 and pressure reducer B12, thus circulating reciprocally.
In the super heat pump, the internal circulation principle is as follows: the gaseous medium a compressed by the compressor A6 in the absorber 1 is fed into the mixture of medium a and medium B to release heat for heating the heat sink, the mixture of medium a and medium B is fed into the double phase change heat exchanger A2 after passing through the heat exchanger A9, the inner space of the energy exchanger 20 is heated by the mixture of medium C and medium D in the outer space of the energy exchanger 20, the mixture of medium a and medium B separates out part of the gaseous medium a into the compressor A6, and the mixture of the remaining medium a and medium B is fed into the absorber 1 through the circulation pump a13 and the heat exchanger A9. The mixture of the medium C and the medium D is heated by the condensation phase change heat of the gaseous medium E in the two-phase conversion heat exchanger B3, wherein other generated medium C enters the condenser 5, the gaseous medium C becomes liquid after heating the medium E, the liquid medium C enters the evaporator 4 after passing through the pressure reducer A11 and is heated by the heat of the heat source to become gas again, and the gaseous medium C enters the double phase change heat exchanger A2 after being heated and boosted by the compressor C8, so that the circulation is realized. Medium E changes from a gaseous state to a liquid state in the two-phase shift converter B3, and from a liquid state to a gaseous state in the condenser 5, and so on.
In the super heat pump, the evaporator 4 is used for extracting heat of a heat source, and the absorber 1 is used for releasing the heat to a heat sink.
In the super heat pump, two biphase conversion heat exchangers are simultaneously used, wherein the energy exchanger 20 which is vertically arranged is adopted in the biphase conversion heat exchanger A2, and the internal space and the external space simultaneously complete the heat transfer and mass transfer processes, so that the heat transfer and mass transfer efficiency is obviously improved, and the overall performance of the super heat pump is obviously improved. In the double phase change heat exchanger A2, a nozzle 19 is adopted to spray a mixture of a medium C and a medium D in the horizontal direction in the outer space of the energy exchanger 20, and the mixture of the medium C and the medium D is sprayed on the wall surface of the complete energy exchanger, so that the problem of an optical area is solved, and in order to increase the heat transfer and mass transfer area under the same volume, the cross section of the energy exchanger 20 is round, square or irregular.
In the super heat pump, three compressors are used for respectively heating and boosting the medium A, the medium C and the medium E, and each compressor is driven by a motor or mechanically.
Drawings
Fig. 1 is a diagram of a super heat pump system.
Reference numerals:
1-absorber, 2-two-phase heat exchanger A, 3-two-phase heat exchanger B, 4-evaporator, 5-condenser, 6-compressor A, 7-compressor B, 8-compressor C, 9-heat exchanger A, 10-heat exchanger B, 11-pressure reducer A, 12-pressure reducer B, 13-circulation pump A, 14-circulation pump B, 15-heat sink inlet, 16-heat sink outlet, 17-heat source outlet, 18-heat source inlet, 19-nozzle, 20-energy exchanger
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention become more apparent, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the internal circulation of this embodiment, medium a is R32, medium B is R22, medium C is R11, medium D is R143a, and medium E is R290.
In this embodiment, the absorber 1 is connected to the compressor A6 and the heat exchanger A9, the double phase change heat exchanger A2 is connected to the compressor A6, the heat exchanger A9, the circulation pump a13, the compressor C8 and the heat exchanger B10, the double phase change heat exchanger B is connected to the circulation pump B14, the heat exchanger B10, the pressure reducer B12 and the compressor B7, the condenser 5 is connected to the compressor B7, the pressure reducer B12, the two-phase change heat exchanger B3 and the pressure reducer a11, the evaporator 4 is connected to the compressor C8 and the pressure reducer a11, the compressor A6 is connected to the absorber 1 and the two-phase change heat exchanger A2, the compressor B7 is connected to the two-phase change heat exchanger B3 and the condenser 5, the compressor C8 is connected to the evaporator 4 and the two-phase change heat exchanger A2, the heat exchanger A9 is connected to the absorber 1, the two-phase change heat exchanger A2 and the circulation pump a13, the heat exchanger B10 is connected to the circulation pump B14, the two-phase change heat exchanger B3 and the two-phase change heat exchanger A2.
In this embodiment, R32 exits dual phase change heat exchanger A2 and enters absorber 1 via compressor A6. After leaving the absorber 1, the mixture of R32 and R22 passes through the heat exchanger A9, the two-phase shift converter A2 and the circulation pump a13 in this order, and then passes through the heat exchanger A9 again to return to the absorber 1, thus circulating reciprocally. R11 leaves the double phase change heat exchanger B3, sequentially passes through the condenser 5, the evaporator 4 and the compressor C8, and then enters the double phase change heat exchanger A2. The mixture of R11 and R143a leaves the double phase change heat exchanger A2 and returns to the double phase change heat exchanger A2 after passing through the heat exchanger B10, the double phase change heat exchanger B3, the circulating pump B14 and the heat exchanger B10. R290 leaves condenser 5 and returns to condenser 5 after passing through compressor B7, two-phase heat exchanger B3 and pressure reducer B12, thus circulating reciprocally.
In this embodiment, the internal circulation principle is: the gas R32 compressed by the compressor A6 in the absorber 1 releases heat to heat the mixture composed of R32 and R22, the mixture composed of R32 and R22 passes through the heat exchanger A9 and then enters the double phase change heat exchanger A2, the inner space of the energy exchanger 20 is heated by the mixture composed of R11 and R143a in the outer space of the energy exchanger 20, the mixture composed of R32 and R22 separates part of the gas R32 to enter the compressor A6, and the mixture composed of the rest R32 and R22 enters the absorber 1 through the circulating pump A13 and the heat exchanger A9. The mixture of R11 and R143a is heated by the condensation phase change heat of the gaseous state R290 in the two-phase conversion heat exchanger B3, wherein other generated R11 enters the condenser 5, the gaseous state R11 is heated by the gaseous state R290 and becomes liquid state, the liquid state R11 enters the evaporator 4 after passing through the pressure reducer A11 and is heated by the heat of the heat source to become gaseous state again, and the gaseous state R11 enters the double phase change heat exchanger A2 after being heated and boosted by the compressor C8, thus the circulation is realized. R290 changes from a gas state to a liquid state in the two-phase shift converter B3, and changes from a liquid state to a gas state in the condenser 5, and so on.
In this embodiment, one stream of 110 ℃ hot water enters the absorber 1 through the heat sink inlet 15 and is heated to 150 ℃ and exits through the heat sink outlet 16, and the other stream of 80 ℃ hot water enters the evaporator 4 through the heat source inlet 18 and is cooled to 50 ℃ and exits through the heat source outlet 17.
In this embodiment, two dual-phase heat exchangers are used simultaneously, wherein the dual-phase heat exchanger A2 adopts the vertically arranged energy exchanger 20, and the internal space and the external space simultaneously complete the heat and mass transfer process, so that the efficiency of heat transfer and mass transfer is significantly improved, and the overall performance of the super heat pump is significantly improved. In the double phase change heat exchanger A2, a nozzle 19 is adopted to spray the mixture of R11 and R143a in the horizontal direction in the outer space of the energy exchanger 20, and the mixture of R11 and R143a is sprayed on the wall surface of the complete energy exchanger, so that the problem of light area is solved, and the cross section of the energy exchanger 20 is diamond.
Finally, it should be pointed out that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting. Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (3)
1. A super heat pump, characterized by: the device consists of an absorber (1), a double-phase conversion heat exchanger A (2), a double-phase conversion heat exchanger B (3), an evaporator (4), a condenser (5), a compressor A (6), a compressor B (7), a compressor C (8), a heat exchanger A (9), a heat exchanger B (10), a pressure reducer A (11), a pressure reducer B (12), a circulating pump A (13), a circulating pump B (14), a heat sink inlet (15), a heat sink outlet (16), a heat source outlet (17), a heat source inlet (18), a nozzle (19) and an energy exchanger (20);
In the super heat pump, an absorber (1) is connected with a compressor A (6) and a heat exchanger A (9), a double-phase-change heat exchanger A (2) is connected with the compressor A (6), the heat exchanger A (9), a circulating pump A (13), a compressor C (8) and a heat exchanger B (10), a double-phase-change heat exchanger B (3) is connected with a circulating pump B (14), a heat exchanger B (10), a pressure reducer B (12) and a compressor B (7), a condenser (5) is connected with the compressor B (7), the pressure reducer B (12), a double-phase-change heat exchanger B (3) and a pressure reducer A (11), an evaporator (4) is connected with the compressor C (8) and the pressure reducer A (11), the compressor A (6) is connected with the absorber (1) and the double-phase-change heat exchanger A (2), the compressor B (7) is connected with the double-phase-change heat exchanger B (3) and the condenser (5), the compressor C (8) is connected with the evaporator (4) and the double-phase-change heat exchanger A (2), and the heat exchanger A (9) is connected with the heat exchanger A (14) and the circulating pump A (2) The double-phase-change heat exchanger B (3) is connected with the double-phase-change heat exchanger A (2);
In the super heat pump, a medium A leaves the double-phase-change heat exchanger A (2) and then enters an absorber (1) through a compressor A (6); after leaving the absorber (1), the mixture of the medium A and the medium B sequentially passes through the heat exchanger A (9), the biphase conversion heat exchanger A (2) and the circulating pump A (13), and then returns to the absorber (1) through the heat exchanger A (9) again, so that the mixture is circulated repeatedly; the medium C leaves the double-phase-change heat exchanger B (3) and then sequentially passes through the condenser (5), the evaporator (4) and the compressor C (8) to enter the double-phase-change heat exchanger A (2); the mixture of the medium C and the medium D leaves the double-phase change heat exchanger A (2) and returns to the double-phase change heat exchanger A (2) after passing through the heat exchanger B (10), the double-phase change heat exchanger B (3), the circulating pump B (14) and the heat exchanger B (10); the medium E leaves the condenser (5) and returns to the condenser (5) after passing through the compressor B (7), the two-phase conversion heat exchanger B (3) and the pressure reducer B (12), and the medium E is circulated in a reciprocating way;
In the super heat pump, the internal circulation principle is as follows: the method comprises the steps that a gaseous medium A compressed by a compressor A (6) in an absorber (1) enters a mixture formed by a medium A and a medium B to release heat for heating a heat sink, the mixture formed by the medium A and the medium B passes through a heat exchanger A (9) and then enters an internal space of an energy exchanger (20) in a double-phase-change heat exchanger A (2) to be heated by a mixture formed by a medium C and a medium D in an external space of the energy exchanger (20), part of the gaseous medium A is separated from the mixture formed by the medium A and the medium B and enters the compressor A (6), and the mixture formed by the rest medium A and the medium B enters the absorber (1) through a circulating pump A (13) and the heat exchanger A (9); the mixture of the medium C and the medium D is heated by the condensation phase change heat of the gaseous medium E in the double-phase conversion heat exchanger B (3), other generated medium C enters the condenser (5), the gaseous medium C becomes liquid after heating the medium E, the liquid medium C enters the evaporator (4) after passing through the pressure reducer A (11) and is heated by the heat of the heat source to become gaseous again, and the gaseous medium C enters the double-phase change heat exchanger A (2) after being heated and boosted by the compressor C (8), so that the circulation is performed; the medium E is changed from a gas state to a liquid state in the two-phase conversion heater B (3), and is changed from the liquid state to the gas state in the condenser (5), and the medium E is circulated in this way;
Simultaneously, two biphase conversion heat exchangers are used, wherein the two-phase conversion heat exchanger A (2) adopts an energy exchanger (20) which is vertically arranged, and the inner space and the outer space simultaneously complete the heat transfer and mass transfer processes; in the double-phase-change heat exchanger A (2), a nozzle (19) is adopted to spray the mixture of the medium C and the medium D in the horizontal direction in the outer space of the energy exchanger (20), the mixture of the medium C and the medium D is sprayed on the wall surface of the complete energy exchanger, and the cross section of the energy exchanger (20) is round, square or irregular;
Three compressors are used for respectively heating and boosting the medium A, the medium C and the medium E, and each compressor is driven by a motor or mechanically.
2. A super heat pump as defined in claim 1, wherein: the internal circulation medium consists of a medium A, a medium B, a medium C, a medium D and a medium E, wherein the medium A and the medium B form a medium pair, the boiling point of the medium A is lower than that of the medium B, the medium C and the medium D form a medium pair, the boiling point of the medium C is lower than that of the medium D, and the respective components of the medium A, the medium B, the medium C, the medium D and the medium E are single chemicals or a mixture of the two chemicals.
3. A super heat pump as defined in claim 1, wherein: the evaporator (4) is used for extracting heat from a heat source, and the absorber (1) is used for releasing the heat to a heat sink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010274402.6A CN111336685B (en) | 2020-04-09 | 2020-04-09 | Super heat pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010274402.6A CN111336685B (en) | 2020-04-09 | 2020-04-09 | Super heat pump |
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| CN111336685A CN111336685A (en) | 2020-06-26 |
| CN111336685B true CN111336685B (en) | 2024-06-11 |
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| CN202010274402.6A Active CN111336685B (en) | 2020-04-09 | 2020-04-09 | Super heat pump |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112361659A (en) * | 2020-11-26 | 2021-02-12 | 华北电力大学 | Super heat pump of energy potential coupling |
| CN112539573B (en) * | 2020-12-23 | 2024-04-09 | 华北电力大学 | Efficient heat exchange device and heat exchange method for super heat pump |
| CN112539571A (en) * | 2020-12-23 | 2021-03-23 | 华北电力大学 | Large-temperature-rise super heat pump heat exchange device and heat exchange method thereof |
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| CN213237962U (en) * | 2020-04-09 | 2021-05-18 | 华北电力大学 | Super heat pump |
Family Cites Families (1)
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| CN104964477B (en) * | 2015-07-31 | 2017-11-24 | 上海缔森能源技术有限公司 | A kind of multistage plate evaporation absorption type refrigerating unit and method |
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| DE10047282A1 (en) * | 2000-03-21 | 2001-10-04 | Michael Laumen | Stored heat pump with integrated, dynamically controlled latent heat store for controlling a volume unit's temperature comprises heat storage with phase change material and a distribution system with inlets for heat transfer |
| JP2013217512A (en) * | 2012-04-04 | 2013-10-24 | Osaka Gas Co Ltd | Engine driven heat pump air conditioner |
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| CN111336685A (en) | 2020-06-26 |
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