IL113446A - Heat pump system and a method for air conditioning - Google Patents
Heat pump system and a method for air conditioningInfo
- Publication number
- IL113446A IL113446A IL113446A IL11344695A IL113446A IL 113446 A IL113446 A IL 113446A IL 113446 A IL113446 A IL 113446A IL 11344695 A IL11344695 A IL 11344695A IL 113446 A IL113446 A IL 113446A
- Authority
- IL
- Israel
- Prior art keywords
- brine
- pump system
- heat pump
- heat
- refrigerant
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
- F24F3/1417—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with liquid hygroscopic desiccants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0014—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using absorption or desorption
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/1458—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification using regenerators
Abstract
There is provided a heat pump system including two (4, 6), at least similar units in fluid communication with each other, each unit having a housing (8, 8'), a first air/brine heat exchanger (12, 12'), a second brine/refrigerant heat exchanger (24, 24'), a brine inlet (10, 10') for applying brine onto at least one of the heat exchangers, a brine reservoir (14, 14') and a pump (28) for circulating the brine from the reservoir to the inlet. The first and second heat exchangers are in closed loop fluid communication with each other and have a compressor (44) for circulating a refrigerant therethrough in selected directions. A method for air-conditioning is also disclosed and claimed.
Description
HEAT PUMP SYSTEM AND A METHOD FOR AIR CONDITIONING The present invention relates to heat pump systems and in particular to heat pump systems utilizing two subcycles, the first involving brine and the second a common refrigerant. The invention also relates to a method of air conditioning, utilizing the heat pump systems.
Space heating and cooling installations are known. Essentially, such installations comprise a closed top refrigerant circulated by means of a compressor through finned pipes located inside a house and outside thereof. In winter, the compressor forces compressed and warmed refrigerant into finned pipe sections within the house where condensation takes place. The liberated heat is usually dispensed into the house by means of a fan. The condensed refrigerant then passes through a throttle valve to an evaporator. The heat of evaporation is provided by the colder outside air. During summer, the sense of circulation of the refrigerant is reversed. The outside finned pipes constitute the condenser, while the inside finned pipes operate as the evaporator.
When such . installations are used in areas where the climate is not mild, however, i.e., where the outside air temperature drops to close to the freezing mark or even therebelow-, ice can accumulate on the surfaces of the outdoor evaporator and obstruct the air flow.
It is therefore a broad object of the present invention to ameliorate the above problem and to provide a heat pump system adapted to operate efficiently also in more severe climatic conditions.
It is a further object of the present invention to provide a heat pump system utilizing brine in heat exchange relationship with a refrigerant.
In accordance with the present invention there is therefore provided a heat pump system, comprising two, at least similar units in fluid communication with ^ each other, each unit including a housing, a first air/brine heat exchanger, a second brine/refrigerant heat exchanger, brine inlet means for applying brine onto at least one of said heat exchangers, a brine reservoir and means for circulating said brine from the reservoir to said inlet means, said second heat exchangers being in close loop fluid communication with each other and having compressor means for circulating a refrigerant therethrough in selected directions.
The invention further provides a method for air conditioning, comprising providing a housing, a first air/brine heat exchanger, a second brine/refrigerant heat exchanger, brine inlet means for applying brine onto at least one of said heat exchangers, a brine reservoir and means for circulating said brine from the reservoir to said inlet means, said second heat exchangers being in close loop fluid communication with each other and having compressor means for circulating a refrigerant therethrough in selected directions, wherein the refrigerant's evaporator and the refrigerant's condenser exchange heat with brine solution, whereby the temperature of condensation of said refrigerant is reduced while the temperature of said evaporator is -raised, thereby increasing the efficiency of the system.
Hygroscopic brine such as LiBr, MgCl2, Ca2cl and mixtures thereof, can be advantageously used. The concentrations of these brines will be such that no precipitation of salts or ice throughout the working range of temperatures of the heat pump will be formed.
The invention will now be described in connection with certain preferred embodiments with reference to the following illustrative figures so that it may be more fully understood.
With specific reference now to the figures in detail, it is stressed that the particulars shown are by way of example and for purposes of illustrative discussion of the preferred embodiments of the present invention only and are presented in the cause of providing what is believed to be the most useful and readily understood description of the principles and conceptual aspects of the invention. In this regard, no attempt is made to show structural details of the invention in more detail than is necessary for a fundamental understanding of the invention, the description taken with the drawings making apparent to those skilled in the art how the several forms of the invention may be embodied in practice.
In the drawings: Fig. 1 is a schematic illustration of a heat pump system according to the present invention; Fig. 2 is a schematic illustration of another embodiment of a heat pump according to the present invention, and Fig. 3 is a modification of the heat pump of Fig. 1.
Seen in the Figure is a heat pump system 2 essentially comprising two substantially similar units 4 and 6, each acting in its turn as an evaporator and a condenser, one "located inside an enclosure (not seen) to be air conditioned and the other, outside the enclosure exposed to ambient air. Each unit respectively includes a housing 8,8' and brine inlet means 10,10' disposed in the upper portion of the housing. The liquid inlet means is advantageously embodied by a set of. drip or spray nozzles or apertures. Below the brine inlet means 10,10' there is affixed a brine/air heat exchanger 12,12·. The latter can be made of densely folded carton paper or of packed particles, e.g., glass or ceramic, -pebbles of beads. The lower portion of the housing constitutes a brine reservoir 14,14' while the space 16,16' inside the housing delimited by the liquid level 18,18' and the heat exchanger 12,12', respectively, acts as a brine dripping space exposed to ambient air introduced thereinto, for example, by a blower 20,20' or by any other natural or forced means. Each of the brine inlet means 10,10' is respectively connected via ^conduit 22,22' to a second heat exchanger 24,24*.
A conduit 26,26' leads from the heat exchanger 24,24' to the brine reservoir 14,14' via a circulation pump 28,28*, respectively. The reservoirs 14, 14 · are in liquid communication via conduits 30,/ and 32 and advantageously, pass through a third heat exchanger 34.
The heat exchangers 24,24', in their simple embodiment are composed of a closed vessel 36,36' each housing a coil 38,38', respectively. The coils 38,38' are interconnected, in a closed loop, by pipes 40,42. A compressor 44 fitted on the pipe 40 forces a refrigerant through the coils 38,38' via a throttle valve 46.
If not all, at least most, of the system's parts and components should be made of materials non-corrosive to brine.
In order to avoid the necessity of providing synchronization and control between the pumps 28,28', it is proposed to build the system such that the brine accumulated in the reservoir 141 will return to the reservoir 14 through conduit 32 as gravity flow. This is achieved by locating the reservoir 14' at a higher level than the level of reservoir 14 or at least interconnecting the reservoir's conduit 32 in such orientation so as to slope from reservoir 14' to reservoir 14. In any case, the brine exchange flow rate between the reservoirs 14 , 14 ' via pipes 30,32 should be smaller than the circulation rate of the brine in the units 4 or 6 themselves. For operation under certain conditions, it is also possible to stop the circulation tf the brine between the two units, if desired.
The size of the reservoirs will determine the capacity thereof acting as heat accumulators for eventual utilization.
Turning to Fig. 2, there is shown another embodiment of the invention in which the housing 50,50' also encloses the refrigerant coils 52,52' and the brine inlet means 54,54·. The latter are located above the coils 52,52*, so as to drip or spray brine on the coils.
The embodiments of Figs. 1 and 2 can be furnished with an inlet port 56 for introducing water to the brine reservoirs 14,14'. This will enable the dilution of the brine when operating the system in very dry and hot climate, to further increase the efficiency thereof.
A modification of the system is illustrated in Fig. 3. Here, the system (of Fig. 1) is further provided with an external source of humidity in the form of plants 58, in order to increase the efficiency of the heat pump during the summer time. During the winter time, however, in order to increase the eff ciency, it is recommended to elevate the temperature of the brine. This can be achieved by condensing the humidity of the brine by means of hot air blown by the blower 20. A source of such hot air can be provided in the form of a hot water to air heat exchanger 60, having a hot water inlet 62 - 7 - 113,446/2 leading to a drip or spray head 64, a heat exchange media 66 and a water outlet 68. The cold ambient air otherwise directly blown into the space 16 (as shown in Fig. 1) will thus be heated first by heat exchange media 66 and only thereafter introduced into the space 16, by means of blower 20.
As can now be readily understood, the outside or room air introduced by blowers 20,20' into the housings 8,8', flows as counter current or cross current to the droplets of brine dripping in the space 16,16', so as to exchange heat and vapor with the brine. Since the brine maintains the unit acting as an condenser at a temperature which is lower than the prevailing temperature, e.g., at 37°C instead of 47°C, and in parallel, niaintains the evaporator's temperature higher than the prevailing temperature, e.g., 4°C instead of 0°C, it can be shown that the efficiency of the cycle will be superior at a ratio, of about, e.g.: 47-0 = 1.4. 37-4 Hence, the coefficient of performance of the brine heat pump, according to the present invention as compared with conventional heat pumps, is substantially higher. In other words, for the same input of energy, the brine heat pump will remove 40% more heat from an enclosure in which it is installed as compared with conventional heat pumps, provided that the mechanical efficiency of the two compressors is the same.
The average temperature head between the fluid inside and the brine in the above example is 6°C and it is anticipated that for an area of 1 square meter of heat exchanger, the heat transfer rate will be about 6 Kw.
Therefore, the heat exchange area between the brine and the working fluid (in heat exchangers 24 and 24') will be small compared with the area required to transfer heat from the working fluid to the air in conventional heat pumps.
The small area of the heat exchanger is related to the large heat conductivity between the condenser and the evaporator's walls (h = 1000 W/Square M.°C) and the brine. The air conductivity is characterized by 70 watt units only (Watts/ (square m C) .
The invention is also usable for refrigeration purposes.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrated embodiments and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (22)
1. A heat pump system comprising: two, at least si .mi.lar uni.ts m. fluid communication with each other, each unit including / a housing, \^ "·a first r1~air/brine' heat exchanger ', · a second brine/refrigerant heat exchanger, brine inlet means for applying brine onto at least one of said heat exchangers, a brine reservoir and means for circulating said brine from the reservoir to said inlet means, *>'( ' ,. ■, said second brine/refrigerant heat exchangers being in close loop fluid communication with each other and having compressor means for circulating a refrigerant therethrough in selected directions.
2. A heat pump system, comprising: two, at least similar units in fluid communication with each other, each unit including a housing, brine inlet means at the top portion thereof, -11 a first heat exchanger located, adjacent said brine inlet means, a brine reservoir at the lower part of said housing and means for introducing air into brine-dripping space I" deli .mi .ted between " sai .d first heat exchanger ' and said reservoir, and , a second heat exchanger in liquid communication with said brine inlet means and said reservoir; the reservoir of each unit being in liquid communication with each other; 113,446/2 - 10 - said second heat exchangers being in a closed loop fluid communication with each other and having compressor means for circulating a refrigerant therethrough in selected directions, and · r .'. - ' I ' . , means for circulating brine between said reservoir and said second heat exchanger of each unit and between the reservoirs of said units.
3. The heat pump system as claimed in claims 1 or 2 , wherein said brine inlet means are drip or spray nozzles.
4. The heat pump system as claimed in claim 2, wherein said means for introducing air is a blower.
5. ' The heat pump system as claimed in claims 1 or 2, wherein said housing is common to said first and second heat exchangers.
6. The heat pump system as claimed in claim 5, wherein said brine inlet means is located above said first and second heat exchangers.
7. The heat pump system as claimed in claim 2 , wherein said first heat exchanger is an air/brine heat exchanger.'
8. The heat pump system as claimed in claims 1 or 2 , f rther comprising a third heat exchanger0 affixed on brine circulating pipes, interconnecting said reservoirs. 113,446/2 - 11 -
9. The heat pump system as claimed in claims 1 or 2, wherein said means for circulating the brine between said units is adapted to circulate brine at a higher rate than the rate of circulation of the brine between said two reservoirs.
10. The heat pump system as claimed in claims 1 or 2, wherein at least said unit and said second and third heat exchangers are made of materials non-corrosive to brine.
11. The heat pump system as claimed in claims 1 or 2, further comprising a throttle valve affixed on a refrigerant carrying pipe interconnecting said second heat exchangers.
12. The heat pump system as claimed in claims 1 or 2 , wherein at least one of said reservoirs is further provided with water inlet means for adding water to the brine.
13. The heat pump system as claimed in claims 1 or 2 , further comprising ambient air heating means for heating the ambient air prior to the introduction thereof into said housing.
14. The heat pump system, as claimed in claim 13, wherein said heating means is a water/air heat exchanger.
15. The heat pump system, as claimed in claims 1 or 2, further comprising an external humidity source for adding humidity to ambient air introducible into said housing. 113,446/2 - 12 -
16. The heat pump system, as claimed in claim 15, wherein said humidity source is a plant.
17. A method for air conditioning, comprising: providing a heat pump system as claimed in claims 1 or 2 , wherein the refrigerant's evaporator and the refrigerant's condenser exchange heat with brine solution, whereby the temperature of condensation of said refrigerant is reduced while the temperature of said evaporator is raised, thereby increasing the efficiency of the system.
18. The method as claimed in claim 17, wherein said first heat exchanger is thermally associated with said refrigerant's evaporator .
19. The method as claimed in claim 17, wherein said first heat exchanger is thermally associated with said refrigerant · s condenser.
20. The method as claimed in claim 17, wherein said means for circulating the brine between said units is adapted to circulate brine at a higher rate than the rate of circulation of the brine between said two reservoirs.
21. The heat pump system as claimed in claims 1 or 2, substantially as hereinbefore described and with reference to the accompanying drawings. 113 ,446/2 - 13 -
22. A method for air conditioning as claimed in claim substantially as hereinbefore described and with reference the accompanying drawings. FOR THE APPLICANT WOLFF/ BREGMA AND GOLLER
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL113446A IL113446A (en) | 1995-04-20 | 1995-04-20 | Heat pump system and a method for air conditioning |
US08/973,090 US6018954A (en) | 1995-04-20 | 1996-04-09 | Heat pump system and method for air-conditioning |
PCT/US1996/004935 WO1996033378A1 (en) | 1995-04-20 | 1996-04-09 | Heat pump system and method for air-conditioning |
DE69629368T DE69629368D1 (en) | 1995-04-20 | 1996-04-09 | HEAT PUMP AND AIR CONDITIONING PROCESS |
JP8531798A JPH11504105A (en) | 1995-04-20 | 1996-04-09 | Air conditioning heat pump system and air conditioning method |
AT96912664T ATE246787T1 (en) | 1995-04-20 | 1996-04-09 | HEAT PUMP SYSTEM AND AIR CONDITIONING METHOD |
US10/059,826 USRE39288E1 (en) | 1995-04-20 | 1996-04-09 | Heat pump system and method for air-conditioning |
AU55399/96A AU5539996A (en) | 1995-04-20 | 1996-04-09 | Heat pump system and method for air-conditioning |
CNB961933828A CN1139773C (en) | 1995-04-20 | 1996-04-09 | Heat pump system and method for air-conditioning |
EP96912664A EP0824659B1 (en) | 1995-04-20 | 1996-04-09 | Heat pump system and method for air-conditioning |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL113446A IL113446A (en) | 1995-04-20 | 1995-04-20 | Heat pump system and a method for air conditioning |
Publications (2)
Publication Number | Publication Date |
---|---|
IL113446A0 IL113446A0 (en) | 1995-07-31 |
IL113446A true IL113446A (en) | 1998-04-05 |
Family
ID=11067379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL113446A IL113446A (en) | 1995-04-20 | 1995-04-20 | Heat pump system and a method for air conditioning |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0824659B1 (en) |
JP (1) | JPH11504105A (en) |
CN (1) | CN1139773C (en) |
AT (1) | ATE246787T1 (en) |
AU (1) | AU5539996A (en) |
DE (1) | DE69629368D1 (en) |
IL (1) | IL113446A (en) |
WO (1) | WO1996033378A1 (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL122065A (en) * | 1997-10-29 | 2000-12-06 | Agam Energy Systems Ltd | Heat pump/engine system and a method utilizing same |
IL141579A0 (en) | 2001-02-21 | 2002-03-10 | Drykor Ltd | Dehumidifier/air-conditioning system |
WO1999026025A1 (en) | 1997-11-16 | 1999-05-27 | Drykor Ltd. | Dehumidifier system |
ATE305120T1 (en) | 1999-03-14 | 2005-10-15 | Drykor Ltd | AIR CONDITIONING WITH DEHUMIDIFIER |
IL134196A (en) * | 2000-01-24 | 2003-06-24 | Agam Energy Systems Ltd | System for dehumidification of air in an enclosure |
DE10059910C2 (en) * | 2000-12-01 | 2003-01-16 | Daimler Chrysler Ag | Device for continuous humidification and dehumidification of the supply air of production processes or ventilation systems |
EP1384034A1 (en) * | 2001-04-23 | 2004-01-28 | Drykor Ltd. | Apparatus for conditioning air |
KR101366379B1 (en) | 2005-12-07 | 2014-02-24 | 듀쿨, 엘티디. | System and method for managing water content in a fluid |
TWI404897B (en) | 2006-08-25 | 2013-08-11 | Ducool Ltd | System and method for managing water content in a fluid |
JP4384699B2 (en) * | 2008-05-22 | 2009-12-16 | ダイナエアー株式会社 | Humidity control device |
JP4374393B1 (en) * | 2008-05-27 | 2009-12-02 | ダイナエアー株式会社 | Humidity control device |
CN101839542A (en) * | 2009-03-18 | 2010-09-22 | 李建锋 | Frost-free heat pump outdoor unit system device |
CN101706136B (en) * | 2009-11-21 | 2012-04-18 | 青岛大学 | Solution temperature and humidity adjustment air treatment system |
SG190387A1 (en) | 2010-11-23 | 2013-06-28 | Ducool Ltd | Air conditioning system |
US10408503B2 (en) | 2016-11-08 | 2019-09-10 | Agam Energy Systems Ltd. | Heat pump system and method for air conditioning |
CN106940055B (en) * | 2016-12-31 | 2019-06-04 | 安徽工业大学 | A kind of five alliance THIC air-conditioning system of family formula and its operation method |
CN110986405B (en) * | 2019-11-26 | 2021-06-22 | 重庆美的通用制冷设备有限公司 | Heat exchange assembly, heat exchange system and air conditioning equipment |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2672024A (en) * | 1951-01-12 | 1954-03-16 | Carrier Corp | Air conditioning system employing a hygroscopic medium |
US2798570A (en) * | 1956-02-20 | 1957-07-09 | Surface Combustion Corp | Air conditioning |
US3747362A (en) * | 1972-03-29 | 1973-07-24 | Leach G | Space cooling system |
US4259849A (en) * | 1979-02-15 | 1981-04-07 | Midland-Ross Corporation | Chemical dehumidification system which utilizes a refrigeration unit for supplying energy to the system |
IL64915A (en) * | 1982-02-02 | 1985-04-30 | Joel Harband | Apparatus and method for temperature and humidity control |
US4700550A (en) * | 1986-03-10 | 1987-10-20 | Rhodes Barry V | Enthalpic heat pump desiccant air conditioning system |
US4941324A (en) * | 1989-09-12 | 1990-07-17 | Peterson John L | Hybrid vapor-compression/liquid desiccant air conditioner |
-
1995
- 1995-04-20 IL IL113446A patent/IL113446A/en not_active IP Right Cessation
-
1996
- 1996-04-09 AT AT96912664T patent/ATE246787T1/en not_active IP Right Cessation
- 1996-04-09 DE DE69629368T patent/DE69629368D1/en not_active Expired - Lifetime
- 1996-04-09 JP JP8531798A patent/JPH11504105A/en active Pending
- 1996-04-09 CN CNB961933828A patent/CN1139773C/en not_active Expired - Fee Related
- 1996-04-09 EP EP96912664A patent/EP0824659B1/en not_active Expired - Lifetime
- 1996-04-09 AU AU55399/96A patent/AU5539996A/en not_active Abandoned
- 1996-04-09 WO PCT/US1996/004935 patent/WO1996033378A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
EP0824659A1 (en) | 1998-02-25 |
IL113446A0 (en) | 1995-07-31 |
CN1139773C (en) | 2004-02-25 |
JPH11504105A (en) | 1999-04-06 |
ATE246787T1 (en) | 2003-08-15 |
CN1182475A (en) | 1998-05-20 |
EP0824659A4 (en) | 2000-12-06 |
EP0824659B1 (en) | 2003-08-06 |
DE69629368D1 (en) | 2003-09-11 |
AU5539996A (en) | 1996-11-07 |
WO1996033378A1 (en) | 1996-10-24 |
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