DE19927518B4 - stationary air conditioning - Google Patents

stationary air conditioning

Info

Publication number
DE19927518B4
DE19927518B4 DE19927518A DE19927518A DE19927518B4 DE 19927518 B4 DE19927518 B4 DE 19927518B4 DE 19927518 A DE19927518 A DE 19927518A DE 19927518 A DE19927518 A DE 19927518A DE 19927518 B4 DE19927518 B4 DE 19927518B4
Authority
DE
Germany
Prior art keywords
reservoir
air conditioning
conditioning system
system according
characterized
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.)
Expired - Fee Related
Application number
DE19927518A
Other languages
German (de)
Other versions
DE19927518A1 (en
Inventor
Horst Jirmann
Nourredine Khelifa
Horst Riehl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Klimasysteme GmbH
Original Assignee
Valeo Klimasysteme GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valeo Klimasysteme GmbH filed Critical Valeo Klimasysteme GmbH
Priority to DE19927518A priority Critical patent/DE19927518B4/en
Publication of DE19927518A1 publication Critical patent/DE19927518A1/en
Application granted granted Critical
Publication of DE19927518B4 publication Critical patent/DE19927518B4/en
Anticipated expiration legal-status Critical
Application status is Expired - Fee Related legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/06Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H01M8/065Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants by dissolution of metals or alloys; by dehydriding metallic substances
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00421Driving arrangements for parts of a vehicle air-conditioning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00478Air-conditioning devices using the Peltier effect
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/02Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/14Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit
    • B60H1/143Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit the heat being derived from cooling an electric component, e.g. electric motors, electric circuits, fuel cells or batteries
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20Fuel cells in motive systems, e.g. vehicle, ship, plane
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04014Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
    • 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
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/30Application of fuel cell technology to transportation
    • Y02T90/32Fuel cells specially adapted to transport applications, e.g. automobile, bus, ship

Abstract

Air conditioning system, in particular parking cooler for a vehicle, with a refrigeration circuit (10) containing at least one compressor (12), the compressor being able to be driven electrically and the compressor (12) being connected to a fuel cell (20) which consists of a fuel reservoir ( 30) is fed, which surrounds the fuel depending on the incidence of heat in the reservoir (30).

Description

  • The present invention relates to generally an air conditioner, and especially a parking cooler for a Vehicle.
  • Due to the ever increasing Requirements for comfort in vehicles has changed in recent years Years ago, air conditioning was already established as standard equipment. Such air conditioners include typically one over a compressor driven cooling circuit, in which a refrigerant fluid in succession through a condenser, an expansion valve and an evaporator guided becomes. The cold provided in the evaporator can be interposed a heat exchanger circuit or immediately above air passing through it is conveyed into the passenger compartment. The compressor is usually mechanically over the drive unit of the vehicle is driven.
  • After in recent years too so-called auxiliary heating systems are increasingly used it turned out that on Market is also in high demand for Stand air conditioning exists, as is currently almost exclusively the case in Truck sector can be found. Among those that are mainly found in the truck sector solutions is usually excess present in driving operation Cold out the refrigeration cycle saved. For this purpose u. a. a heater is known the over a secondary molecule rice with the cooling circuit over one heat exchangers communicates. However, storing cold mostly requires a big Volume and can therefore difficult to implement in the car sector. Furthermore is one Storage of cold problematic in terms of time, since known cold stores have neither can save for a long time still over a longer one Period.
  • According to an internal status of Technique of the applicant was therefore attempted to air condition the stand by means of the refrigeration circuit present by the air conditioning system, at which the compressor can be driven electrically. For electrical The vehicle battery can then be used to supply the compressor that only allows a limited cooling time and on the other hand that Risk entails that after the air conditioning required the operating voltage required for starting is no longer available.
  • The US 5,678,410 A discloses a vehicle air conditioning system for a vehicle, with a refrigeration circuit containing at least one compressor, the compressor being electrically driven and being connected to a fuel cell. which is fed from a fuel reservoir, which the. Releases fuel depending on the heat introduced via an integrated heat exchanger.
  • The object of the present invention is to provide an air conditioning system, in particular a parking cooler for a vehicle, which has a self-regeneration function without the need for active components such as the heat exchanger circuit with pump according to the US patent 5,678,410 A. would be required. In particular, a direct response to the ambient temperature should be possible.
  • Another object of the invention is to design an "air conditioner in such a way that at high ambient temperatures provided high cooling capacities become. Finally It is still another object of the invention to provide an air conditioner to develop in such a way that a stand air conditioning practically independent of vehicle downtimes can be realized.
  • According to the invention, this object is achieved by a Air conditioning system with the features of claim 1 solved. preferred embodiments are in the dependent claims Are defined.
  • According to the invention, an air conditioning system, in particular a parking cooler for a vehicle, is proposed which has a refrigeration circuit containing at least one compressor, the compressor being able to be driven electrically. The compressor is connected to a fuel cell, which is fed from a fuel reservoir, which, depending on a direct heat input, releases the fuel into the reservoir. In other words , at a certain ambient air temperature level of the reservoir, sufficient fuel is released to be able to ignite the fuel cell, so that in a state in which no air conditioning is required and when starting the air conditioning, virtually no energy and no separate units are required. As a result, if there are higher ambient air temperatures, the heat incidence in the reservoir will be higher, thus giving off more fuel, e.g. B. by evaporation, and thus provide more electrical power for the compressor, so that finally a stronger air conditioning takes place on the vehicle side. In other words, the system according to the invention can virtually self-regulate the parking air conditioning of a vehicle in which the reservoir serves as a temperature control element.
  • The air conditioning system advantageously comprises at least a device that the heat incidence can steer into the reservoir and / or bring heat into the reservoir can. Through controlled or active heat input into the reservoir can thus support self-regulation, taking the principles that of heat dependent Air conditioning is maintained.
  • The device may include an electric heater, particularly a Peltier-type electric heater. If e.g. B. in the reservoir a certain fuel vapor pressure is present, this is increased by the introduction of heat by means of an electric heater, so that more fuel is supplied from the reservoir to the fuel cell, which in turn generates more electrical power as previously mentioned and thus provides more cooling for the vehicle interior. So-called. Peltier elements make it possible to provide both heat and cold. Therefore, if such Peltier elements are used to introduce heat into the reservoir, the cooling capacity that arises at another point can also be used to air-condition the passenger compartment.
  • The heat in the reservoir can be supportive can also be controlled or induced by means of a fluid application. For this purpose it is possible the fuel reservoir with a fluid circuit in heat exchanging Bring relationship so that on the one hand Warmth in brought the reservoir and on the other hand cold from the fuel reservoir can be removed.
  • An air application device is advantageous intended. The air application device can do this on the one hand serve to directly flow around the fuel reservoir with air, so that a stronger heat transfer takes place, or a heat exchanger of a fluid circuit assigned to the fuel reservoir. Here too air exposure serves to introduce heat into the reservoir and on the other hand, cold out to drain the reservoir for air conditioning purposes.
  • In a preferred embodiment comprises the establishment means that thermal insulation of the reservoir change. This can e.g. B. simply by a fixed or variable surface enlargement of the Reservoirs are made or even by the properties of an insulation changed be, e.g. B. by means of a vacuum pump, which is a vacuum of the insulation increase and can lower. With vacuum insulation, the heat incidence at higher Vacuum should be lower, leaving the fuel reservoir delivers less fuel to the fuel cell, so that on the vehicle side less cooling capacity to disposal stands.
  • As already mentioned several times the device for controlling and / or introducing the into the reservoir warmth also be exploited to cold used for this purpose of air conditioning a passenger compartment be, e.g. B. as pre-cooling the one to be cooled by the evaporator Air.
  • Between the fuel cell and the fuel reservoir is advantageously a fuel and / or locking device provided in addition to the indirect Control over the temperature a direct intervention z. B. in an emergency situation Locking enabled.
  • It is advantageous between the Fuel cell and the fuel reservoir a heat exchanger provided that enables to use cold contained in the fuel reservoir.
  • It is further preferred that between electrical power control of the fuel cell and the compressor for the Fuel cell is provided. With this configuration, the Condition of the fuel reservoir at least partially via the Fuel cell controlled or regulated. If e.g. B. on the vehicle side less cooling capacity required is to be realized with the electrical power of the fuel cell could, due to the heat into the fuel reservoir, could through the electrical power control the pressure in the reservoir can be increased so at least in the short term less fuel is released from the fuel reservoir.
  • In a preferred embodiment the reservoir is a low or low temperature storage, in particular for hydrogen. Low temperature storage as well as low temperature storage show in that for the present application critical temperature range advantageous Response. A particularly preferred memory is therefore its maximum response at the usual ambient air temperature levels demonstrate. Exemplary could a store can be provided which evaporates fuel at approx. -30 ° C or releases. Those skilled in the art will recognize that, of course, besides the temperature, the pressure design in the reservoir also plays an important role plays. The pressure changes in the area, however, are only peripheral and one Control or regulation of stationary air conditioning by means of pressure control in the reservoir is generally possible and can also be used as a support are, however, currently due to their complexity hardly considered.
  • Although the fuel reservoir too a liquid gas storage, such as B. could be an LH2 memory, it is for security reasons Considerations currently prefer that the reservoir has a hydride storage, in particular comprises a metal hydride storage. With such stores become gas molecules at intermediate grids stored with corresponding temperature and / or pressure changes can be released from the hydride. In other words, it works similar to a hydride storage like a sponge. However, it should be noted that although a hydride storage It is currently particularly preferred that liquid gas solutions can also be advantageous if z. B. there are very long air conditioning times, or if very high volume vehicle spaces are to be air-conditioned.
  • Furthermore, it is preferred that the compressor can optionally be operated mechanically and / or via a vehicle circuit. In other words, the compressor of the refrigeration circuit, e.g. B. while driving, also on the drive unit of the Vehicle or, via the vehicle's alternator can be operated with an associated battery.
  • Finally, it is preferred that the fuel cell optional air heating provides, in particular by means of a cooling circuit for the fuel cell and / or an electric heater powered by the fuel cell. The electric heater can e.g. B. in the form of a PTC heater be trained. By the possible warming On the one hand, air can fine-tune the passenger compartment supplied Air can be achieved, and on the other hand, with the appropriate design the entire vehicle heating using the waste heat from the fuel cell and the available provided electrical heating, optionally by the waste heat of the Traction z. B. supported the internal combustion engine, are provided.
  • Further advantages and features of the present invention will become apparent from the following detailed description of some currently purely illustrative preferred embodiments with reference to the accompanying drawings, in which the 1 to 8th represent schematic representations of preferred embodiments of an air conditioning system according to the invention.
  • In 1 An air conditioning system for a vehicle is shown, which according to the invention can also be operated as stationary air conditioning. The air conditioning system comprises a refrigeration circuit in a classic manner 10 , The refrigerant of the refrigeration cycle 10 is via a compressor 12 driven, passes through a capacitor 11 , which can optionally be acted upon by a fan and by a relaxation device 13 , e.g. B. in the form of a throttle valve. Then the refrigerant is in the evaporator 14 evaporates so that the cold that arises there can be removed into the passenger compartment by means of a fan. After the evaporator 14 the refrigerant is returned to the compressor 12 guided. As shown the compressor 12 mechanically via traction, e.g. B. the internal combustion engine of the vehicle. In addition, the compressor 12 but also via an electric motor 8th are driven, either by the vehicle electrical system or a fuel cell 20 can be fed.
  • The fuel cell 20 is about the line 4 with oxygen and over the line 2 fueled. The fuel line 2 is in the embodiment shown with a steep valve 6 provided, which can regulate or block the throughput of fuel. At the other end of the fuel line 2 is a fuel reservoir 30 provided which releases the fuel depending on the incidence of heat in the reservoir. The reservoir can serve as an example 30 be a low temperature hydride loaded with hydrogen. The low-temperature hydride represents a bond between hydrogen and one or more other chemical elements of a metallic character, with hydrogen atoms being embedded at interstitial sites. When the temperature of this hydride is warmed to above –30 ° C by the environment, the hydrogen escapes in gaseous form and is thus available to the fuel cell for the generation of electrical current.
  • For cooling the fuel cell 20 is a heat exchanger circuit in the embodiment shown 90 provided that can be used for air heating by means of an assigned heat exchanger. The heated air can then be supplied via an optional electric heater 99 , in the embodiment shown in the form of a PTC heating register, are reheated in order to contribute to the temperature of the passenger compartment.
  • In 2 a second preferred embodiment of an air conditioning system according to the invention is shown. Components that correspond to one another are provided with corresponding reference symbols and are not explained again in detail for the sake of clarity. At the in 2 shown embodiment passes through the fuel that the reservoir 30 due to heat, leaves a heat exchanger 18 , in which the cold contained in the fuel can be dissipated. On the one hand, the fuel is thus subjected to suitable combustion conditions for the fuel cell 20 placed, and on the other g ewonnene refrigerant can be exemplified by a heat exchanger 17 in the refrigeration cycle 10 be introduced. One skilled in the art should recognize that, of course, the heat exchanger 17 could be designed as an air heat exchanger if a pre-cooling of the air is desired, which is then by the evaporator 14 of the refrigeration cycle 10 should kick. Alternatively, separate rooms or containers in the vehicle can also be cooled in this way.
  • In 3 Another preferred embodiment of the air conditioning system according to the invention is shown, in which an additional heat incidence in the reservoir 30 via a heat exchanger circuit 60 he follows. The heat exchanger circuit 60 contains a fluid delivery 60 which is the fluid of the heat exchange circuit 60 through the heat exchanger 62 and through the reservoir 30 promotes. The fluid of the heat exchange circuit 60 stands with the reservoir 30 in a heat-exchanging relationship, so that on the one hand the temperature in the reservoir 30 is increased, and that from the reservoir 30 extracted cold in the heat exchanger 62 by air impingement by the fan 50 can be discharged into the passenger compartment, with subsequent flow through the evaporator 14 of the refrigeration cycle 10 , Alternatively, separate rooms or containers in the vehicle can also be cooled in this way.
  • At the in 4 embodiment shown, which is essentially that of 3 corresponds, gives the heat exchanger 62 those from the reservoir 30 removed cold to the cooling circuit 10 off so that on the evaporator 14 there is a lower inlet temperature level, so that the total available cooling capacity is increased.
  • At the in 5 Embodiment shown can the heat in the reservoir 30 be controlled or regulated by means of air. For this purpose is a fan 50 adjacent to the reservoir 30 provided the ambient air to the reservoir 30 directed. The heat transfer between the ambient air and the reservoir 30 is to increase the reservoir 30 provided with an enlarged surface. This enlarged surface is created by lamellar-shaped temperature control bodies 70 achieved. After the ambient air from the fan 50 applied to the reservoir 30 has passed and cooled from the reservoir, it becomes the evaporator 14 of the refrigeration cycle 10 directed to then enter the passenger compartment after cooling down.
  • In 6 air conditioning is essentially that of 1 shown accordingly, but with the reservoir 30 with vacuum insulation 32 is surrounded. By providing vacuum insulation, the direct incidence of heat can be reduced. This configuration is such. B. particularly advantageous for liquid hydrogen reservoirs, due to the extremely low boiling point of hydrogen. In order to be able to regulate the heat, the insulation is 32 with a. vacuum pump 70 coupled, depending on the desired cooling capacity, the vacuum in the insulation 32 can increase or decrease and thus indirectly controls the heat in the reservoir. This configuration could, for. B. also apply to a system in which the reservoir 30 is designed for liquefied natural gas (LPG).
  • At the in 7 The embodiment shown is the reservoir 30 a Peltier element as an electric heater 40 assigned. The Peltier element 40 generated in the illustrated. Embodiment to the reservoir 30 directed surface heat and cold on the side facing away from the reservoir. By heating with the Peltier-Eleinentes 40 heat can enter the reservoir 30 can be increased in accordance with the air conditioning requirements, while the cold occurring on the other side of the Peltier element can serve, for example, for pre-cooling the air that is passed through the evaporator 14 of the refrigeration cycle 10 to be cooled.
  • In 8th Finally, a last preferred embodiment of an air conditioning system according to the invention is shown, which is practically the one in 1 shown embodiment corresponds. However, it is between the fuel cell 20 and the compressor 12 an electrical power control 16 provided that on the one hand can limit the electrical power of the fuel cell and thus reduces the delivery of fuel from the fuel reservoir. On the other hand, the electrical power control 16 an electrical heating resistor 40 in the reservoir 30 act to achieve heating within the reservoir so that the rate of fuel ejection from the reservoir 30 and thus the achievable cooling capacity is increased.
  • In summary, it can be said that by means of the air conditioning system according to the invention stand air conditioning enables that both long service life with air conditioning and without Air conditioning with subsequent Air conditioning enables. After the air conditioning is dependent from the direct incidence of heat into the reservoir and therefore usually is from the ambient temperature, there is some degree of self-regulation. In addition to the advantageous self-regulation, it follows that in the Fuel stored cold or cold generated during the release of fuel is also used can be.
  • Although the present invention previously complete. and in detail with reference to some currently preferred embodiments has been described, those skilled in the art should recognize that various changes and modifications are possible within the scope of the attached claims. In particular, those skilled in the art should recognize that individual features of an embodiment Can be combined and / or exchanged as desired with other features of other design IDs are. Schießlich is to be mentioned that this Reservoir as refillable or can also be designed as an exchangeable reservoir.

Claims (14)

  1. Air conditioning system, in particular parking cooler for a vehicle, with at least one compressor ( 12 ) containing cooling circuit ( 10 ); wherein the compressor can be driven electrically, and with a fuel cell ( 20 ) connected from a fuel reservoir ( 30 ) which feeds the fuel depending on the direct incidence of heat in the reservoir ( 30 ) issues.
  2. Air conditioning system according to claim 1, characterized in that at least one device ( 40 ; 50 ; 60 ; 70 ) is provided to prevent heat from entering the reservoir ( 30 ) to control and / or heat, in particular controllable, into the reservoir ( 30 ) bring to.
  3. Air conditioning system according to claim 2, characterized in that the device ( 40 . 50 . 60 . 70 ) an electric heating device ( 40 ), in particular comprises an electrical heating device of the Peltier type.
  4. Air conditioning system according to claim 2 or 3, characterized in that the device ( 40 . 50 . 60 . 70 ) a fluid loading device ( 60 ), esp especially a heat exchanger circuit coupled to the reservoir ( 60 ) includes.
  5. Air conditioning system according to one of claims 3 to 4, characterized in that the device ( 40 . 50 . 60 . 70 ) an air pressurization device ( 50 ) includes the reservoir ( 30 ) and / or a part ( 62 ) of the fluid loading device ( 60 ) to apply air.
  6. Air conditioning system according to one of claims 2 to 5, characterized in that the device ( 40 . 50 . 60 . 70 ) An institution ( 70 ) which includes thermal insulation ( 32 ) of the reservoir ( 30 ) changed.
  7. Air conditioning system according to one of claims 2 to 6, characterized in that the device ( 40 . 50 . 60 . 70 ) generates cold that can be used for air conditioning and / or from the reservoir ( 30 ) leads away.
  8. Air conditioning system according to one of the preceding claims, characterized in that between the fuel cell ( 20 ) and the fuel reservoir ( 30 ) a fuel control and / or blocking device ( 6 ) is provided.
  9. Air conditioning system according to one of the preceding claims, characterized in that between the fuel cell ( 20 ) and the fuel reservoir ( 30 ) a heat exchanger ( 18 ) is provided.
  10. Air conditioning system according to one of the preceding claims, characterized in that between the fuel cell ( 20 ) and the compressor ( 12 ) an electrical power control ( 16 ) for the fuel cell ( 20 ) is provided.
  11. Air conditioning system according to one of the preceding claims, characterized in that the reservoir ( 30 ) is a low or low temperature storage, especially for hydrogen.
  12. Air conditioning system according to claim 11, characterized in that the reservoir ( 30 ) comprises a hydride storage, in particular a metal hydride storage.
  13. Air conditioning system according to one of the preceding claims, characterized in that the compressor ( 12 ) can optionally be operated mechanically and / or via a vehicle circuit, in particular in stationary operation.
  14. Air conditioning system according to one of the preceding claims, characterized in that the fuel cell ( 20 ) provides optional air heating, especially by means of a cooling circuit ( 90 ) for the fuel cell ( 20 ) and / or an electric heating device fed by the fuel cell, in particular a PTC heating device ( 99 ).
DE19927518A 1999-06-16 1999-06-16 stationary air conditioning Expired - Fee Related DE19927518B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19927518A DE19927518B4 (en) 1999-06-16 1999-06-16 stationary air conditioning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19927518A DE19927518B4 (en) 1999-06-16 1999-06-16 stationary air conditioning

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DE19927518A1 DE19927518A1 (en) 2001-01-18
DE19927518B4 true DE19927518B4 (en) 2004-02-12

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