US20140202661A1 - Thermal storage evaporator and system - Google Patents
Thermal storage evaporator and system Download PDFInfo
- Publication number
- US20140202661A1 US20140202661A1 US13/748,968 US201313748968A US2014202661A1 US 20140202661 A1 US20140202661 A1 US 20140202661A1 US 201313748968 A US201313748968 A US 201313748968A US 2014202661 A1 US2014202661 A1 US 2014202661A1
- Authority
- US
- United States
- Prior art keywords
- fluid
- thermal energy
- evaporator core
- air
- fluid source
- 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.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/0008—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00321—Heat exchangers for air-conditioning devices
- B60H1/00328—Heat exchangers for air-conditioning devices of the liquid-air type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00321—Heat exchangers for air-conditioning devices
- B60H1/00335—Heat exchangers for air-conditioning devices of the gas-air type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00492—Heating, cooling or ventilating [HVAC] devices comprising regenerative heating or cooling means, e.g. heat accumulators
- B60H1/005—Regenerative cooling means, e.g. cold accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
- F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
- F28D1/0435—Combination of units extending one behind the other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
- F28D2021/0071—Evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
- F28F1/128—Fins with openings, e.g. louvered fins
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Definitions
- the invention relates to a climate control system for a vehicle and more particularly to a heating, ventilating, and air conditioning system of a vehicle having a thermal storage evaporator disposed therein.
- a vehicle typically includes a climate control system which maintains a temperature within a passenger compartment of the vehicle at a comfortable level by providing heating, cooling, and ventilation. Comfort is maintained in the passenger compartment by an integrated mechanism referred to in the art as a heating, ventilating and air conditioning (HVAC) system.
- HVAC heating, ventilating and air conditioning
- the HVAC system conditions air flowing therethrough and distributes the conditioned air throughout the passenger compartment.
- a compressor of a refrigeration system provides a flow of a fluid having a desired temperature to an evaporator disposed in the HVAC system to condition the air.
- the compressor is generally driven by a fuel-powered engine of the vehicle.
- vehicles having improved fuel economy over the fuel-powered engine and other vehicles are quickly becoming more popular as a cost of traditional fuel increases.
- the improved fuel economy is due to known technologies such as regenerative braking, electric motor assist, and engine-off operation.
- the technologies improve fuel economy, accessories powered by the fuel-powered engine no longer operate when the fuel-powered engine is not in operation.
- One major accessory that does not operate is the compressor of the refrigeration system. Therefore, without the use of the compressor, the evaporator disposed in the HVAC system does not condition the air flowing therethrough and the temperature of the passenger compartment increases to a point above a desired temperature.
- thermal energy exchanger disposed in the HVAC system to condition the air flowing therethrough when the fuel-powered engine is not in operation.
- thermal energy exchanger also referred to as a cold accumulator
- the cold accumulator includes a phase change material, also referred to as a cold accumulating material, disposed therein.
- the cold accumulating material absorbs heat from the air when the fuel-powered engine is not in operation.
- the cold accumulating material is then recharged by the conditioned air flowing from the cooling heat exchanger when the fuel-powered engine is in operation.
- a thermal energy exchanger having a phase change material disposed therein.
- the phase change material of the thermal energy exchanger conditions a flow of air through the HVAC system when the fuel-powered engine of the vehicle is not in operation.
- the phase change material is charged by a flow of a fluid from the refrigeration system therethrough.
- thermo energy exchanger for an HVAC system having a coolant circulating in at least a portion thereof, wherein an effectiveness and efficiency thereof are maximized, has surprisingly been discovered.
- a control module for a heating, ventilating, and air conditioning system comprises: a housing having an air flow conduit formed therein; an evaporator core disposed in the air flow conduit, at least a portion of the evaporator core configured to receive a first fluid from a first fluid source therein; and an internal thermal energy exchanger disposed in the air flow conduit downstream of the at least a portion the evaporator core and upstream of a blend door disposed in the air flow conduit, the internal thermal energy exchanger configured to receive a second fluid from a second fluid source therein, wherein the first fluid and the second fluid are different fluid types.
- a control module for a heating, ventilating, and air conditioning system comprises: a housing having an air flow conduit formed therein; and an evaporator core having a plurality of layers disposed in the air flow conduit, wherein at least one of the layers is configured to receive a first fluid from a first fluid source therein and at least another one of the layers is configured to receive a second fluid from a second fluid source therein, wherein the first fluid and the second fluid are different fluid types.
- a control module for a heating, ventilating, and air conditioning system comprises: a housing having an air flow conduit formed therein; an evaporator core disposed in the air flow conduit, the evaporator core configured to receive a first fluid from a first fluid source therein; and an internal thermal energy exchanger disposed in the air flow conduit downstream and spaced apart from the evaporator core and upstream of a blend door disposed in the air flow conduit, the internal thermal energy exchanger configured to receive a second fluid from a second fluid source therein, wherein the first fluid is a refrigerant and the second fluid is a coolant.
- FIG. 1 is a schematic flow diagram of an HVAC system including a fragmentary sectional view of an HVAC module having an evaporator core disposed therein according to an embodiment of the invention and showing the evaporator core in fluid communication with a first fluid source and a second fluid source, wherein the second fluid source is a fluid reservoir;
- FIG. 2 is a schematic perspective view of the evaporator core illustrated in FIG. 1 showing a portion of two layers of the evaporator core cutaway;
- FIG. 3 is a schematic flow diagram of an HVAC system including a fragmentary sectional view of an HVAC module having an evaporator core disposed therein according to an embodiment of the invention and showing the evaporator core in fluid communication with a first fluid source and a second fluid source, wherein the second fluid source is an external thermal energy exchanger;
- FIG. 4 is a schematic flow diagram of an HVAC system including a fragmentary sectional view of an HVAC module having an evaporator core disposed therein according to another embodiment of the invention and showing a layer of the evaporator core spaced apart from adjacent layers thereof;
- FIG. 5 is a schematic flow diagram of an HVAC system including a fragmentary sectional view of an HVAC module having an evaporator core and an internal thermal energy exchanger disposed therein according to another embodiment of the invention.
- FIG. 1 shows a heating, ventilating, and air conditioning (HVAC) system 10 according to an embodiment of the invention.
- HVAC heating, ventilating, and air conditioning
- the HVAC system 10 typically provides heating, ventilation, and air conditioning for a passenger compartment of a vehicle (not shown).
- the HVAC system 10 includes a control module 12 to control at least a temperature of the passenger compartment.
- the module 12 illustrated includes a hollow main housing 14 with an air flow conduit 15 formed therein.
- the housing 14 includes an inlet section 16 , a mixing and conditioning section 18 , and an outlet and distribution section (not shown).
- an air inlet 22 is formed in the inlet section 16 .
- the air inlet 22 is in fluid communication with a supply of air (not shown).
- the supply of air can be provided from outside of the vehicle, recirculated from the passenger compartment of the vehicle, or a mixture of the two, for example.
- the inlet section 16 is adapted to receive a blower wheel (not shown) therein to cause air to flow through the air inlet 22 .
- a filter (not shown) can be provided upstream, in, or downstream of the inlet section 16 in respect of a direction of flow through the module 12 if desired.
- the mixing and conditioning section 18 of the housing 14 is configured to receive an evaporator core 24 and a heater core 28 therein. As shown, at least a portion of the mixing and conditioning section 18 is divided into a first passage 30 and a second passage 32 .
- the evaporator core 24 is disposed upstream of a selectively positionable blend door 34 in respect of the direction of flow through the module 12 and the heater core 28 is disposed in the second passage 32 downstream of the blend door 34 in respect of the direction of flow through the module 12 .
- a filter (not shown) can also be provided upstream of the evaporator core 24 in respect of the direction of flow through the module 12 , if desired.
- the evaporator core 24 of the present invention is a multi-layer louvered-fin thermal energy exchanger.
- the evaporator core 24 has a first layer 40 , a second layer 42 , and a third layer 44 arranged substantially perpendicular to the direction of flow through the module 12 . Additional or fewer layers than shown can be employed as desired.
- the layers 40 , 42 , 44 are arranged so the second layer 42 is disposed downstream of the first layer 40 and upstream of the third layer 44 in respect of the direction of flow through the module 12 . It is understood, however, that the layers 40 , 42 , 44 can be arranged as desired.
- the layers 40 , 42 , 44 can be bonded together by any suitable method as desired such as brazing and welding, for example.
- Each of the layers 40 , 42 , 44 of the evaporator core 24 includes an upper first fluid manifold 46 , 48 , 50 and a lower second fluid manifold 52 , 54 , 56 , respectively.
- a plurality of first tubes 58 extends between the fluid manifolds 46 , 52 of the first layer 40 .
- a plurality of second tubes 60 extends between the fluid manifolds 48 , 54 of the second layer 42 .
- a plurality of third tubes 62 extends between the fluid manifolds 50 , 56 of the third layer 44 .
- each of the first upper fluid manifolds 46 , 48 , 50 is an inlet manifold which distributes the fluid into at least a portion of the respective tubes 58 , 60 , 62 and each of the second lower fluid manifolds 52 , 54 , 56 is an outlet manifold which collects the fluid from at least a portion of the respective tubes 58 , 60 , 62 .
- Each of the tubes 58 , 60 , 62 is provided with louvered fins 64 formed thereon.
- the fins 64 abut an outer surface of the tubes 58 , 60 , 62 for enhancing thermal energy transfer of the evaporate core 24 .
- Each of the fins 64 defines an air space 68 extending between the tubes 58 , 60 , 62 .
- the tubes 58 , 60 , 62 of the evaporator core 24 can further include a plurality of internal fins (not shown) formed on an inner surface thereof. The internal fins further enhance the transfer of thermal energy of the evaporator core 24 . It is understood, however, that the evaporator core 24 can be constructed as a finless thermal energy exchanger if desired.
- the layers 40 , 42 of the evaporator core 24 are in fluid communication with a first fluid source 70 via a conduit 72 .
- the first fluid source 70 includes a compressor 74 to cause a first fluid to circulate therein.
- Each of the layers 40 , 42 is configured to receive a flow of the first fluid from the first fluid source 70 therein.
- the first fluid absorbs thermal energy to condition the air flowing through the HVAC module 12 when a fuel-powered engine of the vehicle, and thereby the compressor 74 , is in operation.
- the first fluid source 70 is a refrigeration circuit
- the first fluid is a refrigerant such as R134a, HFO-1234yf, AC-5, AC-6, and CO 2 , for example.
- a valve 76 can be disposed in the conduit 72 to selectively militate against the flow of the first fluid therethrough.
- the HVAC system 10 includes an internal thermal energy exchanger in fluid communication with a second fluid source 80 via a conduit 82 .
- the second fluid source 80 includes a pump 84 (e.g. an electrical coolant pump) to cause a second fluid to circulate through the internal thermal energy exchanger.
- the internal thermal energy exchanger is the layer 44 of the evaporator core 24 .
- the layer 44 is configured to receive a flow of the second fluid from the second fluid source 80 therein.
- the second fluid absorbs or releases thermal energy to condition the air flowing through the HVAC module 12 .
- a valve 86 can be disposed in the conduit 82 to selectively militate against the flow of the second fluid therethrough.
- the second fluid source 80 is a fluid reservoir containing a phase change material (PCM) therein.
- PCM phase change material
- the phase change material can be any suitable material that melts and solidifies at predetermined temperatures and is capable of storing and releasing thermal energy such as organic, inorganic, eutectic and ionic liquids (e.g. a paraffin, a paraffin wax, an alcohol, water, a polygycol, a glycol), and the like, or any combination thereof, for example.
- the phase change material can also be impregnated with a thermally conductive material such as graphite powder, for example, to further enhance the transfer of thermal energy.
- the second fluid source 80 is a fluid reservoir containing a coolant therein.
- the second fluid source 80 is a fluid reservoir containing a phase change material coolant such as CryoSolplus, for example, therein.
- the second fluid source 80 is an external thermal energy exchanger (e.g. a shell and tube heat exchanger, a chiller, etc.) in fluid communication with at least one other system 90 of the vehicle via a conduit 92 . It is understood that the external thermal energy exchanger may include a phase change material disposed therein if desired.
- the layers 40 , 44 of the evaporator core 24 are in fluid communication with the first fluid source 70 via the conduit 72 and configured to receive the flow of the first fluid therein.
- the layer 42 of the evaporator core 24 is in fluid communication with the second fluid source 80 via the conduit 82 and configured to receive the flow of the second fluid from the second fluid source 80 therein.
- only the layer 40 of the evaporator core 24 is in fluid communication with the first fluid source 70 via the conduit 72 and configured to receive the flow of the first fluid therein.
- the layers 42 , 44 of the evaporator core 24 are in fluid communication with the second fluid source 80 via the conduit 82 and configured to receive the flow of the second fluid from the second fluid source 80 therein.
- the heater core 28 is in fluid communication with a third fluid source 94 via a conduit 96 .
- the heater core 28 is configured to receive a flow of a third fluid from the third fluid source 94 therein.
- the third fluid source 94 can be any conventional source of heated fluid such as the fuel-powered engine or a battery system of the vehicle, for example, and the third fluid can be any conventional fluid such as a phase change material, a coolant, or a phase change material coolant, for example.
- a valve 98 can be disposed in the conduit 96 to selectively militate against the flow of the third fluid therethrough.
- the heater core 28 is configured to facilitate a release of thermal energy from the third fluid to heat the air flowing therethrough when the fuel-powered engine of the vehicle is in operation.
- FIG. 4 shows an alternative embodiment of the HVAC system 10 illustrated in FIGS. 1-3 .
- Structure similar to that illustrated in FIGS. 1-3 includes the same reference numeral and a prime (′) symbol for clarity.
- the HVAC system 10 ′ is substantially similar to the HVAC system 10 , except a layer 44 ′, which is the internal thermal energy exchanger in fluid communication with the second fluid source 80 ′, of the evaporator core 24 ′ is spaced apart from the layers 40 ′, 42 ′ of the evaporator core 24 ′.
- HVAC system 10 including the thermal energy exchanger 26 is substantially similar to the operation of the HVAC system 10 ′. For simplicity, only the operation of the HVAC system 10 including the thermal energy exchanger 26 is described hereinafter.
- the HVAC system 10 conditions air by heating or cooling the air, and providing the conditioned air to the passenger compartment of the vehicle. Air from the supply of air is received in the inlet section 16 of the housing 14 in the air inlet 22 and flows through the housing 14 of the module 12 .
- the blend door 34 is positioned in one of a first position permitting air from the evaporator core 24 to only flow into the first passage 30 , a second position permitting the air from the evaporator core 24 to only flow into the second passage 32 , and an intermediate position permitting the air from the evaporator core 24 to flow through both the first passage 30 and the second passage 32 .
- the blend door 34 is positioned either in the second position permitting the air from the evaporator core 24 to only flow into the second passage 32 and through the heater core 28 or in the intermediate position permitting the air from the evaporator core 24 to flow through the first passage 30 and the second passage 32 and through the heater core 28 .
- the blend door 34 is positioned in one of the first position permitting the air from the evaporator core 24 to only flow into the first passage 30 , the second position permitting the air from the evaporator core 24 to only flow into the second passage 32 , and the intermediate position permitting the air from the evaporator core 24 to flow through both the first passage 30 and/or the second passage 32 .
- the first fluid from the first fluid source 70 circulates through the conduit 72 to the layers 40 , 42 as shown in FIG. 1 , the layers 40 , 44 , or only the layer 40 of the evaporator core 24 .
- the second fluid from the second fluid source 80 circulates through the conduit 82 to the layer 44 as shown in FIG. 1 , the layer 42 , or both the layers 42 , 44 of the evaporator core 24 . Accordingly, the air from the inlet section 16 flows into the evaporator core 24 where the air is cooled to a desired temperature by a transfer of thermal energy from the air to the first fluid from the first fluid source 70 .
- the conditioned air As the conditioned air flows through the evaporator core 24 , the conditioned air absorbs thermal energy from the second fluid. The transfer of thermal energy from the second fluid to the conditioned air cools the second fluid, and thereby the phase change material, the coolant, the phase change material coolant, or any combination thereof in the second fluid source 80 . The conditioned air then exits the evaporator core 24 and is selectively permitted by the blend door 34 to flow through the first passage 30 and/or the second passage 32 .
- the first fluid from the first fluid source 70 circulates through the conduit 72 to the layers 40 , 42 as shown in FIG. 1 , the layers 40 , 44 , or only the layer 40 of the evaporator core 24 .
- the pump 84 is not in operation or the valve 86 is closed to militate against the circulation of the second fluid from the second fluid source 80 through the conduit 82 to the layer 44 as shown in FIG. 1 , the layer 42 , or both the layers 42 , 44 of the evaporator core 24 .
- the air from the inlet section 16 flows into the evaporator core 24 where the air is cooled to a desired temperature by a transfer of thermal energy from the air to the first fluid from the first fluid source 70 .
- the conditioned air then exits the evaporator core 24 and is selectively permitted by the blend door 34 to flow through the first passage 30 and/or the second passage 32 .
- the first fluid from the first fluid source 70 does not circulate through the conduit 72 to the layers 40 , 42 as shown in FIG. 1 , the layers 40 , 44 , or only the layer 40 of the evaporator core 24 .
- the pump 84 causes the second fluid from the second fluid source 80 to circulate through the conduit 82 to the layer 44 as shown in FIG. 1 , the layer 42 , or both the layers 42 , 44 of the evaporator core 24 .
- the air from the inlet section 16 flows into the evaporator core 24 where the air is cooled to a desired temperature by a transfer of thermal energy from the air to the second fluid from the second fluid source 80 .
- the conditioned air then exits the evaporator core 24 and is selectively permitted by the blend door 34 to flow through the first passage 30 and/or the second passage 32 .
- the first fluid from the first fluid source 70 does not circulate through the conduit 72 to the layers 40 , 42 as shown in FIG. 1 , the layers 40 , 44 , or only the layer 40 of the evaporator core 24 .
- the pump 84 of the second fluid source 80 is not in operation or the valve 86 is closed to militate against the circulation of the second fluid from the second fluid source 80 through the conduit 82 to the layer 44 as shown in FIG. 1 , the layer 42 , or both the layers 42 , 44 of the evaporator core 24 .
- the air from the inlet section 16 flows through the evaporator core 24 and the internal thermal energy exchanger 144 where a temperature of the air is relatively unaffected.
- the unconditioned air then exits the evaporator core 24 and is selectively permitted by the blend door 34 to flow through the first passage 30 and/or the second passage 32 through the heater core 28 to be heated to a desired temperature.
- the first fluid from the first fluid source 70 does not circulate through the conduit 72 to the layers 40 , 42 as shown in FIG. 1 , the layers 40 , 44 , or only the layer 40 of the evaporator core 24 .
- the pump 84 causes the second fluid from the second fluid source 80 to circulate through the conduit 82 to the layer 44 as shown in FIG. 1 , the layer 42 , or both the layers 42 , 44 of the evaporator core 24 .
- the air from the inlet section 16 flows into the evaporator core 24 where the air is heated to a desired temperature by a transfer of thermal energy from the second fluid from the second fluid source 80 to the air flowing through the evaporator core 24 .
- the conditioned air then exits the evaporator core 24 and is selectively permitted by the blend door 34 to flow through the first passage 30 and/or the second passage 32 through the heater core 28 to be further heated to a desired temperature.
- the first fluid from the first fluid source 70 does not circulate through the conduit 72 to the layers 40 , 42 as shown in FIG. 1 , the layers 40 , 44 , or only the layer 40 of the evaporator core 24 .
- the pump 84 causes the second fluid from the second fluid source 80 to circulate through the conduit 82 to the layer 44 as shown in FIG. 1 , the layer 42 , or both the layers 42 , 44 of the evaporator core 24 . Accordingly, a re-circulated air from a passenger compartment of the vehicle flow through the inlet section 16 and into the evaporator core 24 .
- the re-circulated air transfers thermal energy to the second fluid.
- the transfer of thermal energy from the re-circulated air to the second fluid heats the second fluid, and thereby the phase change material, the coolant, the phase change material coolant, or any combination thereof in the second fluid source 80 .
- the re-circulated air then exits the evaporator core 24 and is selectively permitted by the blend door 34 to flow through the first passage 30 and/or the second passage 32 .
- FIG. 5 shows another an alternative embodiment of the HVAC system 10 illustrated in FIGS. 1-4 .
- Structure similar to that illustrated in FIGS. 1-4 includes the same reference numeral and a double prime (′′) symbol for clarity.
- the HVAC system 10 ′′ is substantially similar to the HVAC system 10 , except an internal thermal energy exchanger 144 is in fluid communication with the second fluid source 80 ′′ instead of the evaporator core 24 ′′.
- the evaporator core 24 ′′ of the present invention is a multi-layer louvered-fin thermal energy exchanger.
- the evaporator core 24 ′′ has a first layer 40 ′′, a second layer 42 ′′, and a third layer 44 ′′ arranged substantially perpendicular to the direction of flow through a module 12 ′′. Additional or fewer layers than shown can be employed as desired.
- the layers 40 ′′, 42 ′′, 44 ′′ are arranged so the second layer 42 ′′ is disposed downstream of the first layer 40 ′′ and upstream of the third layer 44 ′′ in respect of the direction of flow through the module 12 ′′. It is understood, however, that the layers 40 ′′, 42 ′′, 44 ′′ can be arranged as desired.
- the layers 40 ′′, 42 ′′, 44 ′′ can be bonded together by any suitable method as desired such as brazing and welding, for example.
- the layers 40 ′′, 42 ′′, 44 ′′ of the evaporator core 24 ′′, shown in FIG. 5 are in fluid communication with a first fluid source 70 ′′ via a conduit 72 ′′.
- the first fluid source 70 ′′ includes a compressor 74 ′′ to cause a first fluid to circulate therein.
- Each of the layers 40 ′′, 42 ′′, 44 ′′ is configured to receive a flow of the first fluid from the first fluid source 70 ′′ therein.
- the first fluid absorbs thermal energy to condition the air flowing through the HVAC module 12 ′′ when a fuel-powered engine of the vehicle, and thereby the compressor 74 ′′, is in operation.
- the first fluid source 70 ′′ is a refrigeration circuit
- the first fluid is a refrigerant such as R134a, HFO-1234yf, AC-5, AC-6, and CO 2 , for example.
- a valve 76 ′′ can be disposed in the conduit 72 ′′ to selectively militate against the flow of the first fluid therethrough.
- the internal thermal energy exchanger 144 of the HVAC system 10 ′′ is disposed downstream and spaced apart from the evaporator core 24 ′′ and upstream of a blend door 34 ′′.
- the thermal energy exchanger 144 can be any conventional thermal energy exchanger as desired such as a multi-layer louvered-fin thermal energy exchanger, for example.
- the thermal energy exchanger is in fluid communication with a second fluid source 80 ′′ via a conduit 82 ′′.
- the second fluid source 80 ′′ includes a pump 84 ′′ (e.g. an electrical coolant pump) to cause a second fluid to circulate through the internal thermal energy exchanger 144 .
- the internal thermal energy exchanger 144 is configured to receive a flow of the second fluid from the second fluid source 80 ′′ therein.
- the second fluid absorbs or releases thermal energy to condition the air flowing through the HVAC module 12 ′′.
- a valve 86 ′′ can be disposed in the conduit 82 ′′ to selectively militate against the flow of the second fluid therethrough.
- the second fluid source 80 ′′ is a fluid reservoir containing a phase change material (PCM) therein.
- PCM phase change material
- the phase change material can be any suitable material that melts and solidifies at predetermined temperatures and is capable of storing and releasing thermal energy such as organic, inorganic, eutectic and ionic liquids (e.g. a paraffin, a paraffin wax, an alcohol, water, a polygycol, a glycol), and the like, or any combination thereof, for example.
- the phase change material can also be impregnated with a thermally conductive material such as graphite powder, for example, to further enhance the transfer of thermal energy.
- the second fluid source 80 ′′ is a fluid reservoir containing a coolant therein.
- the second fluid source 80 ′′ is a fluid reservoir containing a phase change material coolant such as CryoSolplus, for example, therein.
- the second fluid source 80 ′′ is an external thermal energy exchanger (e.g. a shell and tube heat exchanger, a chiller, etc.) in fluid communication with at least one other system 90 ′′ of the vehicle via a conduit 92 ′′. It is understood that the external thermal energy exchanger may include a phase change material disposed therein if desired.
- the heater core 28 ′′ is in fluid communication with a third fluid source 94 ′′ via a conduit 96 ′′.
- the heater core 28 ′′ is configured to receive a flow of a third fluid from the third fluid source 94 ′′ therein.
- the third fluid source 94 ′′ can be any conventional source of heated fluid such as the fuel-powered engine or a battery system of the vehicle, for example, and the third fluid can be any conventional fluid such as a phase change material, a coolant, or a phase change material coolant, for example.
- a valve 98 ′′ can be disposed in the conduit 96 ′′ to selectively militate against the flow of the third fluid therethrough.
- the heater core 28 ′′ is configured to facilitate a release of thermal energy from the third fluid to heat the air flowing therethrough when the fuel-powered engine of the vehicle is in operation.
- the HVAC system 10 conditions air by heating or cooling the air, and providing the conditioned air to the passenger compartment of the vehicle. Air from the supply of air is received in housing 14 ′′ and flows through the module 12 ′′.
- the blend door 34 ′′ is positioned in one of a first position permitting air from the evaporator core 24 ′′ and the thermal energy exchanger 144 to only flow into the first passage 30 ′′, a second position permitting the air from the evaporator core 24 ′′ and the thermal energy exchanger 144 to only flow into the second passage 32 ′′, and an intermediate position permitting the air from the evaporator core 24 ′′ and the thermal energy exchanger 144 to flow through both the first passage 30 ′′ and the second passage 32 ′′.
- the blend door 34 ′′ is positioned either in the second position permitting the air from the evaporator core 24 ′′ and the thermal energy exchanger 144 to only flow into the second passage 32 ′′ and through the heater core 28 ′′ or in the intermediate position permitting the air from the evaporator core 24 ′′ and the thermal energy exchanger 144 to flow through the first passage 30 ′′ and the second passage 32 ′′ and through the heater core 28 ′′.
- the blend door 34 ′′ is positioned in one of the first position permitting the air from the evaporator core 24 ′′ and the thermal energy exchanger 144 to only flow into the first passage 30 ′′, the second position permitting the air from the evaporator core 24 ′′ and the thermal energy exchanger 144 to only flow into the second passage 32 ′′, and the intermediate position permitting the air from the evaporator core 24 ′′ and the thermal energy exchanger 144 to flow through both the first passage 30 ′′ and/or the second passage 32 ′′.
- the first fluid from the first fluid source 70 ′′ circulates through the conduit 72 ′′ to the layers 40 ′′, 42 ′′, 44 ′′ of the evaporator core 24 ′′.
- the second fluid from the second fluid source 80 ′′ circulates through the conduit 82 ′′ to the internal thermal energy exchanger 144 . Accordingly, the air from the inlet section 16 ′′ flows into the evaporator core 24 ′′ where the air is cooled to a desired temperature by a transfer of thermal energy from the air to the first fluid from the first fluid source 70 ′′.
- the conditioned air then flows from the evaporator core 24 ′′ to the internal thermal energy exchanger 144 .
- the conditioned air absorbs thermal energy from the second fluid.
- the transfer of thermal energy from the second fluid to the conditioned air cools the second fluid, and thereby the phase change material, the coolant, the phase change material coolant, or any combination thereof in the second fluid source 80 ′′.
- the conditioned air then exits the internal thermal energy exchanger 144 and is selectively permitted by the blend door 34 ′′ to flow through the first passage 30 ′′ and/or the second passage 32 ′′.
- the first fluid from the first fluid source 70 ′′ circulates through the conduit 72 ′′ to the layers 40 ′′, 42 ′′, 44 ′′ of the evaporator core 24 ′′.
- the pump 84 ′′ of the second fluid source 80 ′′ is not in operation or the valve 86 ′′ is closed to militate against the circulation of the second fluid from the second fluid source 80 ′′ through the conduit 82 ′′ to the internal thermal energy exchanger 144 .
- the air from the inlet section 16 ′′ flows into the evaporator core 24 ′′ where the air is cooled to a desired temperature by a transfer of thermal energy from the air to the first fluid from the first fluid source 70 ′′.
- the conditioned air then flows from the evaporator core 24 ′′ to the internal thermal energy exchanger 144 .
- the temperature of the conditioned air is relatively unaffected.
- the conditioned air then exits the internal thermal energy exchanger 144 and is selectively permitted by the blend door 34 ′′ to flow through the first passage 30 ′′ and/or the second passage 32 ′′.
- the first fluid from the first fluid source 70 ′′ does not circulate through the conduit 72 ′′ to the layers 40 ′′, 42 ′′, 44 ′′ of the evaporator core 24 ′′.
- the pump 84 ′′ causes the second fluid from the second fluid source 80 ′′ to circulate through the conduit 82 ′′ to the internal thermal energy exchanger 144 .
- the air from the inlet section 16 ′′ flows through the evaporator core 24 ′′ where a temperature of the air is relatively unaffected. The air then flows from the evaporator core 24 ′′ to the internal thermal energy exchanger 144 .
- the air As the air flows through the internal thermal energy exchanger 144 , the air is cooled to a desired temperature by a transfer of thermal energy from the air to the second fluid from the second fluid source 80 ′′. The conditioned air then exits the thermal energy exchanger 144 and is selectively permitted by the blend door 34 ′′ to flow through the first passage 30 ′′ and/or the second passage 32 ′′.
- the first fluid from the first fluid source 70 ′′ does not circulate through the conduit 72 ′′ to the layers 40 ′′, 42 ′′, 44 ′′ of the evaporator core 24 ′′.
- the pump 84 ′′ of the second fluid source 80 ′′ is not in operation or the valve 86 ′′ is closed to militate against the circulation of the second fluid from the second fluid source 80 ′′ through the conduit 82 ′′ to the internal thermal energy exchanger 144 . Accordingly, the air from the inlet section 16 ′′ flows through the evaporator core 24 ′′ and the internal thermal energy exchanger 144 where a temperature of the air is relatively unaffected.
- the unconditioned air then exits the evaporator 24 ′′ and the internal thermal energy exchanger 144 and is selectively permitted by the blend door 34 ′′ to flow through the first passage 30 ′′ and/or the second passage 32 ′′ through the heater core 28 ′′ to be heated to a desired temperature.
- the first fluid from the first fluid source 70 ′′ does not circulate through the conduit 72 ′′ to the layers 40 ′′, 42 ′′, 44 ′′ of the evaporator core 24 ′′.
- the pump 84 ′′ causes the second fluid from the second fluid source 80 ′′ to circulate through the conduit 82 ′′ to the internal thermal energy exchanger 144 . Accordingly, the air from the inlet section 16 ′′ flows through the evaporator core 24 ′′ where a temperature of the air is relatively unaffected.
- the air then flows from the evaporator core 24 ′′ to the internal thermal energy exchanger 144 .
- the air As the air flows through the internal thermal energy exchanger 144 , the air is heated to a desired temperature by a transfer of thermal energy from the second fluid from the second fluid source 80 ′′ to the air flowing through the internal thermal energy exchanger 144 .
- the conditioned air then exits the internal thermal energy exchanger 144 and is selectively permitted by the blend door 34 ′′ to flow through the first passage 30 ′′ and/or the second passage 32 ′′ through the heater core 28 ′′ to be further heated to a desired temperature.
- the first fluid from the first fluid source 70 ′′ does not circulate through the conduit 72 ′′ to the layers 40 ′′, 42 ′′, 44 ′′ of the evaporator core 24 ′′.
- the pump 84 ′′ causes the second fluid from the second fluid source 80 ′′ to circulate through the conduit 82 ′′ to the internal thermal energy exchanger 144 . Accordingly, a re-circulated air from a passenger compartment of the vehicle flow through the inlet section 16 ′′ and into the evaporator core 24 ′′ where a temperature of the air is relatively unaffected.
- the re-circulated air then flows from the evaporator core 24 ′′ to the internal thermal energy exchanger 144 .
- the re-circulated air transfers thermal energy to the second fluid.
- the transfer of thermal energy from the re-circulated air to the second fluid heats the second fluid, and thereby the phase change material, the coolant, the phase change material coolant, or any combination thereof in the second fluid source 80 ′′.
- the re-circulated air then exits the internal thermal energy exchanger 144 and is selectively permitted by the blend door 34 ′′ to flow through the first passage 30 ′′ and/or the second passage 32 ′′.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
- The invention relates to a climate control system for a vehicle and more particularly to a heating, ventilating, and air conditioning system of a vehicle having a thermal storage evaporator disposed therein.
- A vehicle typically includes a climate control system which maintains a temperature within a passenger compartment of the vehicle at a comfortable level by providing heating, cooling, and ventilation. Comfort is maintained in the passenger compartment by an integrated mechanism referred to in the art as a heating, ventilating and air conditioning (HVAC) system. The HVAC system conditions air flowing therethrough and distributes the conditioned air throughout the passenger compartment.
- Typically, a compressor of a refrigeration system provides a flow of a fluid having a desired temperature to an evaporator disposed in the HVAC system to condition the air. The compressor is generally driven by a fuel-powered engine of the vehicle. However, in recent years, vehicles having improved fuel economy over the fuel-powered engine and other vehicles are quickly becoming more popular as a cost of traditional fuel increases. The improved fuel economy is due to known technologies such as regenerative braking, electric motor assist, and engine-off operation. Although the technologies improve fuel economy, accessories powered by the fuel-powered engine no longer operate when the fuel-powered engine is not in operation. One major accessory that does not operate is the compressor of the refrigeration system. Therefore, without the use of the compressor, the evaporator disposed in the HVAC system does not condition the air flowing therethrough and the temperature of the passenger compartment increases to a point above a desired temperature.
- Accordingly, vehicle manufacturers have used a thermal energy exchanger disposed in the HVAC system to condition the air flowing therethrough when the fuel-powered engine is not in operation. One such thermal energy exchanger, also referred to as a cold accumulator, is described in U.S. Pat. No. 6,854,513 entitled VEHICLE AIR CONDITIONING SYSTEM WITH COLD ACCUMULATOR, hereby incorporated herein by reference in its entirety. The cold accumulator includes a phase change material, also referred to as a cold accumulating material, disposed therein. The cold accumulating material absorbs heat from the air when the fuel-powered engine is not in operation. The cold accumulating material is then recharged by the conditioned air flowing from the cooling heat exchanger when the fuel-powered engine is in operation.
- In U.S. Pat. No. 6,691,527 entitled AIR-CONDITIONER FOR A MOTOR VEHICLE, hereby incorporated herein by reference in its entirety, a thermal energy exchanger is disclosed having a phase change material disposed therein. The phase change material of the thermal energy exchanger conditions a flow of air through the HVAC system when the fuel-powered engine of the vehicle is not in operation. The phase change material is charged by a flow of a fluid from the refrigeration system therethrough.
- While the prior art HVAC systems perform adequately, it is desirable to produce a thermal energy exchanger for an HVAC system having a coolant circulating in at least a portion thereof, wherein an effectiveness and efficiency thereof are maximized.
- In concordance and agreement with the present invention, a thermal energy exchanger for an HVAC system having a coolant circulating in at least a portion thereof, wherein an effectiveness and efficiency thereof are maximized, has surprisingly been discovered.
- In one embodiment, a control module for a heating, ventilating, and air conditioning system, comprises: a housing having an air flow conduit formed therein; an evaporator core disposed in the air flow conduit, at least a portion of the evaporator core configured to receive a first fluid from a first fluid source therein; and an internal thermal energy exchanger disposed in the air flow conduit downstream of the at least a portion the evaporator core and upstream of a blend door disposed in the air flow conduit, the internal thermal energy exchanger configured to receive a second fluid from a second fluid source therein, wherein the first fluid and the second fluid are different fluid types.
- In another embodiment, a control module for a heating, ventilating, and air conditioning system, comprises: a housing having an air flow conduit formed therein; and an evaporator core having a plurality of layers disposed in the air flow conduit, wherein at least one of the layers is configured to receive a first fluid from a first fluid source therein and at least another one of the layers is configured to receive a second fluid from a second fluid source therein, wherein the first fluid and the second fluid are different fluid types.
- In yet another embodiment, a control module for a heating, ventilating, and air conditioning system, comprises: a housing having an air flow conduit formed therein; an evaporator core disposed in the air flow conduit, the evaporator core configured to receive a first fluid from a first fluid source therein; and an internal thermal energy exchanger disposed in the air flow conduit downstream and spaced apart from the evaporator core and upstream of a blend door disposed in the air flow conduit, the internal thermal energy exchanger configured to receive a second fluid from a second fluid source therein, wherein the first fluid is a refrigerant and the second fluid is a coolant.
- The above, as well as other objects and advantages of the invention, will become readily apparent to those skilled in the art from reading the following detailed description of various embodiments of the invention when considered in the light of the accompanying drawings in which:
-
FIG. 1 is a schematic flow diagram of an HVAC system including a fragmentary sectional view of an HVAC module having an evaporator core disposed therein according to an embodiment of the invention and showing the evaporator core in fluid communication with a first fluid source and a second fluid source, wherein the second fluid source is a fluid reservoir; -
FIG. 2 is a schematic perspective view of the evaporator core illustrated inFIG. 1 showing a portion of two layers of the evaporator core cutaway; -
FIG. 3 is a schematic flow diagram of an HVAC system including a fragmentary sectional view of an HVAC module having an evaporator core disposed therein according to an embodiment of the invention and showing the evaporator core in fluid communication with a first fluid source and a second fluid source, wherein the second fluid source is an external thermal energy exchanger; -
FIG. 4 is a schematic flow diagram of an HVAC system including a fragmentary sectional view of an HVAC module having an evaporator core disposed therein according to another embodiment of the invention and showing a layer of the evaporator core spaced apart from adjacent layers thereof; and -
FIG. 5 is a schematic flow diagram of an HVAC system including a fragmentary sectional view of an HVAC module having an evaporator core and an internal thermal energy exchanger disposed therein according to another embodiment of the invention. - The following detailed description and appended drawings describe and illustrate various exemplary embodiments of the invention. The description and drawings serve to enable one skilled in the art to make and use the invention, and are not intended to limit the scope of the invention in any manner.
-
FIG. 1 shows a heating, ventilating, and air conditioning (HVAC)system 10 according to an embodiment of the invention. TheHVAC system 10 typically provides heating, ventilation, and air conditioning for a passenger compartment of a vehicle (not shown). TheHVAC system 10 includes acontrol module 12 to control at least a temperature of the passenger compartment. - The
module 12 illustrated includes a hollowmain housing 14 with anair flow conduit 15 formed therein. Thehousing 14 includes aninlet section 16, a mixing andconditioning section 18, and an outlet and distribution section (not shown). In the embodiment shown, anair inlet 22 is formed in theinlet section 16. Theair inlet 22 is in fluid communication with a supply of air (not shown). The supply of air can be provided from outside of the vehicle, recirculated from the passenger compartment of the vehicle, or a mixture of the two, for example. Theinlet section 16 is adapted to receive a blower wheel (not shown) therein to cause air to flow through theair inlet 22. A filter (not shown) can be provided upstream, in, or downstream of theinlet section 16 in respect of a direction of flow through themodule 12 if desired. - The mixing and
conditioning section 18 of thehousing 14 is configured to receive anevaporator core 24 and aheater core 28 therein. As shown, at least a portion of the mixing andconditioning section 18 is divided into afirst passage 30 and asecond passage 32. In particular embodiments, theevaporator core 24 is disposed upstream of a selectivelypositionable blend door 34 in respect of the direction of flow through themodule 12 and theheater core 28 is disposed in thesecond passage 32 downstream of theblend door 34 in respect of the direction of flow through themodule 12. A filter (not shown) can also be provided upstream of theevaporator core 24 in respect of the direction of flow through themodule 12, if desired. - The
evaporator core 24 of the present invention, shown inFIGS. 1-2 , is a multi-layer louvered-fin thermal energy exchanger. In a non-limiting example, theevaporator core 24 has afirst layer 40, asecond layer 42, and athird layer 44 arranged substantially perpendicular to the direction of flow through themodule 12. Additional or fewer layers than shown can be employed as desired. Thelayers second layer 42 is disposed downstream of thefirst layer 40 and upstream of thethird layer 44 in respect of the direction of flow through themodule 12. It is understood, however, that thelayers layers - Each of the
layers evaporator core 24 includes an upperfirst fluid manifold second fluid manifold first tubes 58 extends between thefluid manifolds first layer 40. A plurality ofsecond tubes 60 extends between thefluid manifolds second layer 42. A plurality ofthird tubes 62 extends between thefluid manifolds third layer 44. In particular embodiments, each of the first upper fluid manifolds 46, 48, 50 is an inlet manifold which distributes the fluid into at least a portion of therespective tubes lower fluid manifolds respective tubes - Each of the
tubes louvered fins 64 formed thereon. Thefins 64 abut an outer surface of thetubes core 24. Each of thefins 64 defines anair space 68 extending between thetubes tubes evaporator core 24 can further include a plurality of internal fins (not shown) formed on an inner surface thereof. The internal fins further enhance the transfer of thermal energy of theevaporator core 24. It is understood, however, that theevaporator core 24 can be constructed as a finless thermal energy exchanger if desired. - In a particular embodiment, the
layers evaporator core 24, shown inFIG. 1 , are in fluid communication with a firstfluid source 70 via aconduit 72. The firstfluid source 70 includes acompressor 74 to cause a first fluid to circulate therein. Each of thelayers fluid source 70 therein. The first fluid absorbs thermal energy to condition the air flowing through theHVAC module 12 when a fuel-powered engine of the vehicle, and thereby thecompressor 74, is in operation. As a non-limiting example, the firstfluid source 70 is a refrigeration circuit, and the first fluid is a refrigerant such as R134a, HFO-1234yf, AC-5, AC-6, and CO2, for example. Avalve 76 can be disposed in theconduit 72 to selectively militate against the flow of the first fluid therethrough. - In certain embodiments, the
HVAC system 10 includes an internal thermal energy exchanger in fluid communication with a secondfluid source 80 via aconduit 82. The secondfluid source 80 includes a pump 84 (e.g. an electrical coolant pump) to cause a second fluid to circulate through the internal thermal energy exchanger. As illustrated, the internal thermal energy exchanger is thelayer 44 of theevaporator core 24. Thelayer 44 is configured to receive a flow of the second fluid from the secondfluid source 80 therein. The second fluid absorbs or releases thermal energy to condition the air flowing through theHVAC module 12. Avalve 86 can be disposed in theconduit 82 to selectively militate against the flow of the second fluid therethrough. As a non-limiting example, the secondfluid source 80 is a fluid reservoir containing a phase change material (PCM) therein. Those skilled in the art will appreciate that the phase change material can be any suitable material that melts and solidifies at predetermined temperatures and is capable of storing and releasing thermal energy such as organic, inorganic, eutectic and ionic liquids (e.g. a paraffin, a paraffin wax, an alcohol, water, a polygycol, a glycol), and the like, or any combination thereof, for example. The phase change material can also be impregnated with a thermally conductive material such as graphite powder, for example, to further enhance the transfer of thermal energy. As another non-limiting example, the secondfluid source 80 is a fluid reservoir containing a coolant therein. As another non-limiting example, the secondfluid source 80 is a fluid reservoir containing a phase change material coolant such as CryoSolplus, for example, therein. As yet another non-limiting example shown inFIG. 3 , the secondfluid source 80 is an external thermal energy exchanger (e.g. a shell and tube heat exchanger, a chiller, etc.) in fluid communication with at least oneother system 90 of the vehicle via aconduit 92. It is understood that the external thermal energy exchanger may include a phase change material disposed therein if desired. - In another particular embodiment, the
layers evaporator core 24 are in fluid communication with the firstfluid source 70 via theconduit 72 and configured to receive the flow of the first fluid therein. On the other hand, thelayer 42 of theevaporator core 24 is in fluid communication with the secondfluid source 80 via theconduit 82 and configured to receive the flow of the second fluid from the secondfluid source 80 therein. - In yet another particular embodiment, only the
layer 40 of theevaporator core 24 is in fluid communication with the firstfluid source 70 via theconduit 72 and configured to receive the flow of the first fluid therein. Thelayers evaporator core 24 are in fluid communication with the secondfluid source 80 via theconduit 82 and configured to receive the flow of the second fluid from the secondfluid source 80 therein. - As shown, the
heater core 28 is in fluid communication with a thirdfluid source 94 via aconduit 96. Theheater core 28 is configured to receive a flow of a third fluid from the thirdfluid source 94 therein. The thirdfluid source 94 can be any conventional source of heated fluid such as the fuel-powered engine or a battery system of the vehicle, for example, and the third fluid can be any conventional fluid such as a phase change material, a coolant, or a phase change material coolant, for example. Avalve 98 can be disposed in theconduit 96 to selectively militate against the flow of the third fluid therethrough. Theheater core 28 is configured to facilitate a release of thermal energy from the third fluid to heat the air flowing therethrough when the fuel-powered engine of the vehicle is in operation. -
FIG. 4 shows an alternative embodiment of theHVAC system 10 illustrated inFIGS. 1-3 . Structure similar to that illustrated inFIGS. 1-3 includes the same reference numeral and a prime (′) symbol for clarity. InFIG. 4 , theHVAC system 10′ is substantially similar to theHVAC system 10, except alayer 44′, which is the internal thermal energy exchanger in fluid communication with the secondfluid source 80′, of theevaporator core 24′ is spaced apart from thelayers 40′, 42′ of theevaporator core 24′. - It is understood that the operation of the
HVAC system 10 including the thermal energy exchanger 26 is substantially similar to the operation of theHVAC system 10′. For simplicity, only the operation of theHVAC system 10 including the thermal energy exchanger 26 is described hereinafter. - In operation, the
HVAC system 10 conditions air by heating or cooling the air, and providing the conditioned air to the passenger compartment of the vehicle. Air from the supply of air is received in theinlet section 16 of thehousing 14 in theair inlet 22 and flows through thehousing 14 of themodule 12. - In a cooling mode or an engine-off cooling mode of the
HVAC system 10, theblend door 34 is positioned in one of a first position permitting air from theevaporator core 24 to only flow into thefirst passage 30, a second position permitting the air from theevaporator core 24 to only flow into thesecond passage 32, and an intermediate position permitting the air from theevaporator core 24 to flow through both thefirst passage 30 and thesecond passage 32. In a heating mode or an engine-off heating mode of theHVAC system 10, theblend door 34 is positioned either in the second position permitting the air from theevaporator core 24 to only flow into thesecond passage 32 and through theheater core 28 or in the intermediate position permitting the air from theevaporator core 24 to flow through thefirst passage 30 and thesecond passage 32 and through theheater core 28. In an internal thermal energy exchanger charge mode or a re-circulation heating mode of theHVAC system 10, theblend door 34 is positioned in one of the first position permitting the air from theevaporator core 24 to only flow into thefirst passage 30, the second position permitting the air from theevaporator core 24 to only flow into thesecond passage 32, and the intermediate position permitting the air from theevaporator core 24 to flow through both thefirst passage 30 and/or thesecond passage 32. - When the fuel-powered engine of the vehicle is in operation and the
HVAC system 10 is the cooling mode or the internal thermal energy exchanger charge mode, the first fluid from the firstfluid source 70 circulates through theconduit 72 to thelayers FIG. 1 , thelayers layer 40 of theevaporator core 24. Additionally, the second fluid from the secondfluid source 80 circulates through theconduit 82 to thelayer 44 as shown inFIG. 1 , thelayer 42, or both thelayers evaporator core 24. Accordingly, the air from theinlet section 16 flows into theevaporator core 24 where the air is cooled to a desired temperature by a transfer of thermal energy from the air to the first fluid from the firstfluid source 70. As the conditioned air flows through theevaporator core 24, the conditioned air absorbs thermal energy from the second fluid. The transfer of thermal energy from the second fluid to the conditioned air cools the second fluid, and thereby the phase change material, the coolant, the phase change material coolant, or any combination thereof in the secondfluid source 80. The conditioned air then exits theevaporator core 24 and is selectively permitted by theblend door 34 to flow through thefirst passage 30 and/or thesecond passage 32. - In other certain embodiments, when the fuel-powered engine of the vehicle is in operation and the
HVAC system 10 is in the cooling mode, the first fluid from the firstfluid source 70 circulates through theconduit 72 to thelayers FIG. 1 , thelayers layer 40 of theevaporator core 24. However, thepump 84 is not in operation or thevalve 86 is closed to militate against the circulation of the second fluid from the secondfluid source 80 through theconduit 82 to thelayer 44 as shown inFIG. 1 , thelayer 42, or both thelayers evaporator core 24. Accordingly, the air from theinlet section 16 flows into theevaporator core 24 where the air is cooled to a desired temperature by a transfer of thermal energy from the air to the first fluid from the firstfluid source 70. The conditioned air then exits theevaporator core 24 and is selectively permitted by theblend door 34 to flow through thefirst passage 30 and/or thesecond passage 32. - When the fuel-powered engine of the vehicle is not in operation and the
HVAC system 10 is in the engine-off cooling mode, the first fluid from the firstfluid source 70 does not circulate through theconduit 72 to thelayers FIG. 1 , thelayers layer 40 of theevaporator core 24. However, thepump 84 causes the second fluid from the secondfluid source 80 to circulate through theconduit 82 to thelayer 44 as shown inFIG. 1 , thelayer 42, or both thelayers evaporator core 24. Accordingly, the air from theinlet section 16 flows into theevaporator core 24 where the air is cooled to a desired temperature by a transfer of thermal energy from the air to the second fluid from the secondfluid source 80. The conditioned air then exits theevaporator core 24 and is selectively permitted by theblend door 34 to flow through thefirst passage 30 and/or thesecond passage 32. - When the fuel-powered engine of the vehicle is in operation and the
HVAC system 10 is in the heating mode, the first fluid from the firstfluid source 70 does not circulate through theconduit 72 to thelayers FIG. 1 , thelayers layer 40 of theevaporator core 24. Similarly, thepump 84 of the secondfluid source 80 is not in operation or thevalve 86 is closed to militate against the circulation of the second fluid from the secondfluid source 80 through theconduit 82 to thelayer 44 as shown inFIG. 1 , thelayer 42, or both thelayers evaporator core 24. Accordingly, the air from theinlet section 16 flows through theevaporator core 24 and the internalthermal energy exchanger 144 where a temperature of the air is relatively unaffected. The unconditioned air then exits theevaporator core 24 and is selectively permitted by theblend door 34 to flow through thefirst passage 30 and/or thesecond passage 32 through theheater core 28 to be heated to a desired temperature. - In other certain embodiments, when the fuel-powered engine of the vehicle is in operation and the
HVAC system 10 is in the heating mode or the fuel-powered engine of the vehicle is not in operation and theHVAC system 10 is in the engine-off heating mode, the first fluid from the firstfluid source 70 does not circulate through theconduit 72 to thelayers FIG. 1 , thelayers layer 40 of theevaporator core 24. However, thepump 84 causes the second fluid from the secondfluid source 80 to circulate through theconduit 82 to thelayer 44 as shown inFIG. 1 , thelayer 42, or both thelayers evaporator core 24. Accordingly, the air from theinlet section 16 flows into theevaporator core 24 where the air is heated to a desired temperature by a transfer of thermal energy from the second fluid from the secondfluid source 80 to the air flowing through theevaporator core 24. The conditioned air then exits theevaporator core 24 and is selectively permitted by theblend door 34 to flow through thefirst passage 30 and/or thesecond passage 32 through theheater core 28 to be further heated to a desired temperature. - When the fuel-powered engine of the vehicle is in operation and the
HVAC system 10 is in the recirculation heating mode or the internal thermal energy exchanger charge mode, the first fluid from the firstfluid source 70 does not circulate through theconduit 72 to thelayers FIG. 1 , thelayers layer 40 of theevaporator core 24. However, thepump 84 causes the second fluid from the secondfluid source 80 to circulate through theconduit 82 to thelayer 44 as shown inFIG. 1 , thelayer 42, or both thelayers evaporator core 24. Accordingly, a re-circulated air from a passenger compartment of the vehicle flow through theinlet section 16 and into theevaporator core 24. As the re-circulated air flows through theevaporator core 24, the re-circulated air transfers thermal energy to the second fluid. The transfer of thermal energy from the re-circulated air to the second fluid heats the second fluid, and thereby the phase change material, the coolant, the phase change material coolant, or any combination thereof in the secondfluid source 80. The re-circulated air then exits theevaporator core 24 and is selectively permitted by theblend door 34 to flow through thefirst passage 30 and/or thesecond passage 32. -
FIG. 5 shows another an alternative embodiment of theHVAC system 10 illustrated inFIGS. 1-4 . Structure similar to that illustrated inFIGS. 1-4 includes the same reference numeral and a double prime (″) symbol for clarity. InFIG. 5 , theHVAC system 10″ is substantially similar to theHVAC system 10, except an internalthermal energy exchanger 144 is in fluid communication with the secondfluid source 80″ instead of theevaporator core 24″. - The
evaporator core 24″ of the present invention, shown inFIG. 5 , is a multi-layer louvered-fin thermal energy exchanger. In a non-limiting example, theevaporator core 24″ has afirst layer 40″, asecond layer 42″, and athird layer 44″ arranged substantially perpendicular to the direction of flow through amodule 12″. Additional or fewer layers than shown can be employed as desired. Thelayers 40″, 42″, 44″ are arranged so thesecond layer 42″ is disposed downstream of thefirst layer 40″ and upstream of thethird layer 44″ in respect of the direction of flow through themodule 12″. It is understood, however, that thelayers 40″, 42″, 44″ can be arranged as desired. Thelayers 40″, 42″, 44″ can be bonded together by any suitable method as desired such as brazing and welding, for example. - The
layers 40″, 42″, 44″ of theevaporator core 24″, shown inFIG. 5 , are in fluid communication with a firstfluid source 70″ via aconduit 72″. The firstfluid source 70″ includes acompressor 74″ to cause a first fluid to circulate therein. Each of thelayers 40″, 42″, 44″ is configured to receive a flow of the first fluid from the firstfluid source 70″ therein. The first fluid absorbs thermal energy to condition the air flowing through theHVAC module 12″ when a fuel-powered engine of the vehicle, and thereby thecompressor 74″, is in operation. As a non-limiting example, the firstfluid source 70″ is a refrigeration circuit, and the first fluid is a refrigerant such as R134a, HFO-1234yf, AC-5, AC-6, and CO2, for example. Avalve 76″ can be disposed in theconduit 72″ to selectively militate against the flow of the first fluid therethrough. - As shown, the internal
thermal energy exchanger 144 of theHVAC system 10″ is disposed downstream and spaced apart from theevaporator core 24″ and upstream of ablend door 34″. Thethermal energy exchanger 144 can be any conventional thermal energy exchanger as desired such as a multi-layer louvered-fin thermal energy exchanger, for example. The thermal energy exchanger is in fluid communication with a secondfluid source 80″ via aconduit 82″. The secondfluid source 80″ includes apump 84″ (e.g. an electrical coolant pump) to cause a second fluid to circulate through the internalthermal energy exchanger 144. As illustrated, the internalthermal energy exchanger 144 is configured to receive a flow of the second fluid from the secondfluid source 80″ therein. The second fluid absorbs or releases thermal energy to condition the air flowing through theHVAC module 12″. Avalve 86″ can be disposed in theconduit 82″ to selectively militate against the flow of the second fluid therethrough. As a non-limiting example, the secondfluid source 80″ is a fluid reservoir containing a phase change material (PCM) therein. Those skilled in the art will appreciate that the phase change material can be any suitable material that melts and solidifies at predetermined temperatures and is capable of storing and releasing thermal energy such as organic, inorganic, eutectic and ionic liquids (e.g. a paraffin, a paraffin wax, an alcohol, water, a polygycol, a glycol), and the like, or any combination thereof, for example. The phase change material can also be impregnated with a thermally conductive material such as graphite powder, for example, to further enhance the transfer of thermal energy. As another non-limiting example, the secondfluid source 80″ is a fluid reservoir containing a coolant therein. As another non-limiting example, the secondfluid source 80″ is a fluid reservoir containing a phase change material coolant such as CryoSolplus, for example, therein. As yet another non-limiting example, the secondfluid source 80″ is an external thermal energy exchanger (e.g. a shell and tube heat exchanger, a chiller, etc.) in fluid communication with at least oneother system 90″ of the vehicle via aconduit 92″. It is understood that the external thermal energy exchanger may include a phase change material disposed therein if desired. - As shown, the
heater core 28″ is in fluid communication with a thirdfluid source 94″ via aconduit 96″. Theheater core 28″ is configured to receive a flow of a third fluid from the thirdfluid source 94″ therein. The thirdfluid source 94″ can be any conventional source of heated fluid such as the fuel-powered engine or a battery system of the vehicle, for example, and the third fluid can be any conventional fluid such as a phase change material, a coolant, or a phase change material coolant, for example. Avalve 98″ can be disposed in theconduit 96″ to selectively militate against the flow of the third fluid therethrough. Theheater core 28″ is configured to facilitate a release of thermal energy from the third fluid to heat the air flowing therethrough when the fuel-powered engine of the vehicle is in operation. - In operation, the
HVAC system 10″ conditions air by heating or cooling the air, and providing the conditioned air to the passenger compartment of the vehicle. Air from the supply of air is received inhousing 14″ and flows through themodule 12″. - In a cooling mode or an engine-off cooling mode of the
HVAC system 10″, theblend door 34″ is positioned in one of a first position permitting air from theevaporator core 24″ and thethermal energy exchanger 144 to only flow into thefirst passage 30″, a second position permitting the air from theevaporator core 24″ and thethermal energy exchanger 144 to only flow into thesecond passage 32″, and an intermediate position permitting the air from theevaporator core 24″ and thethermal energy exchanger 144 to flow through both thefirst passage 30″ and thesecond passage 32″. In a heating mode or an engine-off heating mode of theHVAC system 10″, theblend door 34″ is positioned either in the second position permitting the air from theevaporator core 24″ and thethermal energy exchanger 144 to only flow into thesecond passage 32″ and through theheater core 28″ or in the intermediate position permitting the air from theevaporator core 24″ and thethermal energy exchanger 144 to flow through thefirst passage 30″ and thesecond passage 32″ and through theheater core 28″. In an internal thermal energy exchanger charge mode or a recirculation heating mode of theHVAC system 10″, theblend door 34″ is positioned in one of the first position permitting the air from theevaporator core 24″ and thethermal energy exchanger 144 to only flow into thefirst passage 30″, the second position permitting the air from theevaporator core 24″ and thethermal energy exchanger 144 to only flow into thesecond passage 32″, and the intermediate position permitting the air from theevaporator core 24″ and thethermal energy exchanger 144 to flow through both thefirst passage 30″ and/or thesecond passage 32″. - When the fuel-powered engine of the vehicle is in operation and the
HVAC system 10″ is in the cooling mode or the internal thermal energy exchanger charge mode, the first fluid from the firstfluid source 70″ circulates through theconduit 72″ to thelayers 40″, 42″, 44″ of theevaporator core 24″. Additionally, the second fluid from the secondfluid source 80″ circulates through theconduit 82″ to the internalthermal energy exchanger 144. Accordingly, the air from theinlet section 16″ flows into theevaporator core 24″ where the air is cooled to a desired temperature by a transfer of thermal energy from the air to the first fluid from the firstfluid source 70″. The conditioned air then flows from theevaporator core 24″ to the internalthermal energy exchanger 144. As the conditioned air flows through the internalthermal energy exchanger 144, the conditioned air absorbs thermal energy from the second fluid. The transfer of thermal energy from the second fluid to the conditioned air cools the second fluid, and thereby the phase change material, the coolant, the phase change material coolant, or any combination thereof in the secondfluid source 80″. The conditioned air then exits the internalthermal energy exchanger 144 and is selectively permitted by theblend door 34″ to flow through thefirst passage 30″ and/or thesecond passage 32″. - In other certain embodiments, when the fuel-powered engine of the vehicle is in operation and the
HVAC system 10″ is operating in the cooling mode, the first fluid from the firstfluid source 70″ circulates through theconduit 72″ to thelayers 40″, 42″, 44″ of theevaporator core 24″. However, thepump 84″ of the secondfluid source 80″ is not in operation or thevalve 86″ is closed to militate against the circulation of the second fluid from the secondfluid source 80″ through theconduit 82″ to the internalthermal energy exchanger 144. Accordingly, the air from theinlet section 16″ flows into theevaporator core 24″ where the air is cooled to a desired temperature by a transfer of thermal energy from the air to the first fluid from the firstfluid source 70″. The conditioned air then flows from theevaporator core 24″ to the internalthermal energy exchanger 144. As the conditioned air flows through the internalthermal energy exchanger 144, the temperature of the conditioned air is relatively unaffected. The conditioned air then exits the internalthermal energy exchanger 144 and is selectively permitted by theblend door 34″ to flow through thefirst passage 30″ and/or thesecond passage 32″. - When the fuel-powered engine of the vehicle is not in operation and the
HVAC system 10″ is in the engine-off cooling mode, the first fluid from the firstfluid source 70″ does not circulate through theconduit 72″ to thelayers 40″, 42″, 44″ of theevaporator core 24″. However, thepump 84″ causes the second fluid from the secondfluid source 80″ to circulate through theconduit 82″ to the internalthermal energy exchanger 144. Accordingly, the air from theinlet section 16″ flows through theevaporator core 24″ where a temperature of the air is relatively unaffected. The air then flows from theevaporator core 24″ to the internalthermal energy exchanger 144. As the air flows through the internalthermal energy exchanger 144, the air is cooled to a desired temperature by a transfer of thermal energy from the air to the second fluid from the secondfluid source 80″. The conditioned air then exits thethermal energy exchanger 144 and is selectively permitted by theblend door 34″ to flow through thefirst passage 30″ and/or thesecond passage 32″. - When the fuel-powered engine of the vehicle is in operation and the
HVAC system 10″ is in the heating mode, the first fluid from the firstfluid source 70″ does not circulate through theconduit 72″ to thelayers 40″, 42″, 44″ of theevaporator core 24″. Similarly, thepump 84″ of the secondfluid source 80″ is not in operation or thevalve 86″ is closed to militate against the circulation of the second fluid from the secondfluid source 80″ through theconduit 82″ to the internalthermal energy exchanger 144. Accordingly, the air from theinlet section 16″ flows through theevaporator core 24″ and the internalthermal energy exchanger 144 where a temperature of the air is relatively unaffected. The unconditioned air then exits theevaporator 24″ and the internalthermal energy exchanger 144 and is selectively permitted by theblend door 34″ to flow through thefirst passage 30″ and/or thesecond passage 32″ through theheater core 28″ to be heated to a desired temperature. - In other certain embodiments, when the fuel-powered engine of the vehicle is in operation and the
HVAC system 10″ is in the heating mode or the fuel-powered engine of the vehicle is not in operation and theHVAC system 10″ is in the engine-off heating mode, the first fluid from the firstfluid source 70″ does not circulate through theconduit 72″ to thelayers 40″, 42″, 44″ of theevaporator core 24″. However, thepump 84″ causes the second fluid from the secondfluid source 80″ to circulate through theconduit 82″ to the internalthermal energy exchanger 144. Accordingly, the air from theinlet section 16″ flows through theevaporator core 24″ where a temperature of the air is relatively unaffected. The air then flows from theevaporator core 24″ to the internalthermal energy exchanger 144. As the air flows through the internalthermal energy exchanger 144, the air is heated to a desired temperature by a transfer of thermal energy from the second fluid from the secondfluid source 80″ to the air flowing through the internalthermal energy exchanger 144. The conditioned air then exits the internalthermal energy exchanger 144 and is selectively permitted by theblend door 34″ to flow through thefirst passage 30″ and/or thesecond passage 32″ through theheater core 28″ to be further heated to a desired temperature. - When the fuel-powered engine of the vehicle is in operation and the
HVAC system 10″ is in the recirculation heating mode or the internal thermal energy exchanger charge mode, the first fluid from the firstfluid source 70″ does not circulate through theconduit 72″ to thelayers 40″, 42″, 44″ of theevaporator core 24″. However, thepump 84″ causes the second fluid from the secondfluid source 80″ to circulate through theconduit 82″ to the internalthermal energy exchanger 144. Accordingly, a re-circulated air from a passenger compartment of the vehicle flow through theinlet section 16″ and into theevaporator core 24″ where a temperature of the air is relatively unaffected. The re-circulated air then flows from theevaporator core 24″ to the internalthermal energy exchanger 144. As the air flows through the internalthermal energy exchanger 144, the re-circulated air transfers thermal energy to the second fluid. The transfer of thermal energy from the re-circulated air to the second fluid heats the second fluid, and thereby the phase change material, the coolant, the phase change material coolant, or any combination thereof in the secondfluid source 80″. The re-circulated air then exits the internalthermal energy exchanger 144 and is selectively permitted by theblend door 34″ to flow through thefirst passage 30″ and/or thesecond passage 32″. - From the foregoing description, one ordinarily skilled in the art can easily ascertain the essential characteristics of this invention and, without departing from the spirit and scope thereof, can make various changes and modifications to the invention to adapt it to various usages and conditions.
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/748,968 US20140202661A1 (en) | 2013-01-24 | 2013-01-24 | Thermal storage evaporator and system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/748,968 US20140202661A1 (en) | 2013-01-24 | 2013-01-24 | Thermal storage evaporator and system |
Publications (1)
Publication Number | Publication Date |
---|---|
US20140202661A1 true US20140202661A1 (en) | 2014-07-24 |
Family
ID=51206805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/748,968 Abandoned US20140202661A1 (en) | 2013-01-24 | 2013-01-24 | Thermal storage evaporator and system |
Country Status (1)
Country | Link |
---|---|
US (1) | US20140202661A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140216684A1 (en) * | 2013-02-01 | 2014-08-07 | Visteon Global Technologies, Inc. | Heating, ventilating, and air conditioning system with an exhaust gas thermal energy exchanger |
JP2018002114A (en) * | 2016-07-08 | 2018-01-11 | 株式会社デンソー | Cold storage heat exchanger and air conditioning unit |
US20190178534A1 (en) * | 2016-08-09 | 2019-06-13 | Rep Ip Ag | Transport container |
WO2022093669A3 (en) * | 2020-08-24 | 2022-08-04 | Alley Tony | Multiple channel heat exchanger |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5953926A (en) * | 1997-08-05 | 1999-09-21 | Tennessee Valley Authority | Heating, cooling, and dehumidifying system with energy recovery |
US20020002837A1 (en) * | 2000-05-26 | 2002-01-10 | Yuichi Shirota | Vehicle air conditioning system with cold accumulator |
US6540015B1 (en) * | 1999-09-16 | 2003-04-01 | Denso Corporation | Heat exchanger and method for manufacturing the same |
US20060037349A1 (en) * | 2004-08-17 | 2006-02-23 | Lg Electronics Inc. | Cogeneration system and method for controlling the same |
US20070039714A1 (en) * | 2003-10-21 | 2007-02-22 | Didier Loup | Heat exchanger using a storage fluid |
-
2013
- 2013-01-24 US US13/748,968 patent/US20140202661A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5953926A (en) * | 1997-08-05 | 1999-09-21 | Tennessee Valley Authority | Heating, cooling, and dehumidifying system with energy recovery |
US6540015B1 (en) * | 1999-09-16 | 2003-04-01 | Denso Corporation | Heat exchanger and method for manufacturing the same |
US20020002837A1 (en) * | 2000-05-26 | 2002-01-10 | Yuichi Shirota | Vehicle air conditioning system with cold accumulator |
US6854513B2 (en) * | 2000-05-26 | 2005-02-15 | Denso Corporation | Vehicle air conditioning system with cold accumulator |
US20070039714A1 (en) * | 2003-10-21 | 2007-02-22 | Didier Loup | Heat exchanger using a storage fluid |
US20060037349A1 (en) * | 2004-08-17 | 2006-02-23 | Lg Electronics Inc. | Cogeneration system and method for controlling the same |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140216684A1 (en) * | 2013-02-01 | 2014-08-07 | Visteon Global Technologies, Inc. | Heating, ventilating, and air conditioning system with an exhaust gas thermal energy exchanger |
JP2018002114A (en) * | 2016-07-08 | 2018-01-11 | 株式会社デンソー | Cold storage heat exchanger and air conditioning unit |
US20190178534A1 (en) * | 2016-08-09 | 2019-06-13 | Rep Ip Ag | Transport container |
US11920832B2 (en) * | 2016-08-09 | 2024-03-05 | Rep Ip Ag | Transport container |
WO2022093669A3 (en) * | 2020-08-24 | 2022-08-04 | Alley Tony | Multiple channel heat exchanger |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20140208793A1 (en) | Integrated hot and cold storage systems linked to heat pump | |
US20090211732A1 (en) | Thermal energy exchanger for a heating, ventilating, and air conditioning system | |
US9242530B2 (en) | Heat exchanger with phase change material manifolds | |
US9109841B2 (en) | Air to refrigerant heat exchanger with phase change material | |
US20140208794A1 (en) | Thermal energy exchanger with heat pipe | |
US8336319B2 (en) | Thermal management system with dual mode coolant loops | |
US8613200B2 (en) | Heater-cooler with bithermal thermoelectric device | |
CN103998267B (en) | Heat-exchange system | |
US11173769B2 (en) | Thermal management system for vehicle | |
JP5962556B2 (en) | Thermal management system for vehicles | |
US10308095B2 (en) | Heating, ventilation, and air conditioning system for vehicle | |
JP5626194B2 (en) | Heat exchange system | |
US10131205B2 (en) | Climate control system | |
US20110214838A1 (en) | Vehicle air conditioner | |
KR102474341B1 (en) | Heat pump system for a vehicle | |
US9821630B2 (en) | Modular air conditioning system | |
CN111347934B (en) | Thermal management system and method for fuel cell vehicle | |
US20090188266A1 (en) | Heating, ventilating, and air conditioning system having a thermal energy exchanger | |
CN109477696B (en) | Equipment temperature adjusting device | |
CN109455059B (en) | Heat pump air conditioner and heat management system integrating water-cooled condenser and water-cooled evaporator | |
US20140209278A1 (en) | Thermal energy storage system with heat pump, reduced heater core, and integrated battery cooling and heating | |
US20140202661A1 (en) | Thermal storage evaporator and system | |
JP2011143911A (en) | Vehicular air-conditioning unit and vehicular air-conditioning system | |
US20090191804A1 (en) | Heating, ventilating, and air conditioning system having a thermal energy exchanger | |
US20140216684A1 (en) | Heating, ventilating, and air conditioning system with an exhaust gas thermal energy exchanger |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: VISTEON GLOBAL TECHNOLOGIES, INC., MICHIGAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GOENKA, LAKHI NANDLAL;REEL/FRAME:029874/0551 Effective date: 20130121 |
|
AS | Assignment |
Owner name: HALLA VISTEON CLIMATE CONTROL CORPORATION, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VISTEON GLOBAL TECHNOLOGIES, INC.;REEL/FRAME:034476/0358 Effective date: 20130131 |
|
AS | Assignment |
Owner name: HANON SYSTEMS, KOREA, REPUBLIC OF Free format text: CHANGE OF NAME;ASSIGNOR:HALLA VISTEON CLIMATE CONTROL CORPORATION;REEL/FRAME:037007/0103 Effective date: 20150728 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |