EP3073218A1 - Condenseur à microcanaux refroidi par eau - Google Patents

Condenseur à microcanaux refroidi par eau Download PDF

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Publication number
EP3073218A1
EP3073218A1 EP16160017.6A EP16160017A EP3073218A1 EP 3073218 A1 EP3073218 A1 EP 3073218A1 EP 16160017 A EP16160017 A EP 16160017A EP 3073218 A1 EP3073218 A1 EP 3073218A1
Authority
EP
European Patent Office
Prior art keywords
condenser
outer shell
microchannel
microchannel coil
coil
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.)
Withdrawn
Application number
EP16160017.6A
Other languages
German (de)
English (en)
Inventor
Steve Pfister
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.)
Heatcraft Refrigeration Products LLC
Original Assignee
Heatcraft Refrigeration Products LLC
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 Heatcraft Refrigeration Products LLC filed Critical Heatcraft Refrigeration Products LLC
Publication of EP3073218A1 publication Critical patent/EP3073218A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • 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
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • F28D21/0005—Recuperative heat exchangers the heat being recuperated from exhaust gases for domestic or space-heating systems
    • F28D21/0007—Water heaters
    • 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
    • F28D7/08—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 being otherwise bent, e.g. in a serpentine or zig-zag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/046—Condensers with refrigerant heat exchange tubes positioned inside or around a vessel containing water or pcm to cool the refrigerant gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/07—Details of compressors or related parts
    • F25B2400/075—Details of compressors or related parts with parallel compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/23—Separators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F28D2021/007—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2260/00—Heat exchangers or heat exchange elements having special size, e.g. microstructures
    • F28F2260/02—Heat exchangers or heat exchange elements having special size, e.g. microstructures having microchannels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates

Definitions

  • the present application and the resultant patent relate generally to refrigeration systems and more particularly relate to cascade refrigeration systems with a water cooled, microchannel condenser for use with a high side ammonia based cooling cycle.
  • Cascade refrigeration systems generally include a first side cooling cycle, or a high side, and a second side cooling cycle, or a low side cooling cycle.
  • the two cooling cycles interface through a common heat exchanger, i.e ., a cascade evaporator-condenser.
  • the cascade refrigeration system may provide cooling at very low temperatures in a highly efficient manner.
  • the present application and the resulting patent thus provide a condenser for a cascade refrigeration system.
  • the condenser may include an outer shell, a microchannel coil, an ammonia refrigerant flowing through the microchannel coil, and a water based coolant flowing through the outer shell for heat exchange with the ammonia refrigerant.
  • the present invention also provides a condenser for a cascade refrigeration system, comprising: an outer shell; and a microchannel coil; wherein: the microchannel coil comprises means for connecting to a source of an ammonia refrigerant for flowing through the microchannel coil; and the outer shell comprises means for connecting to a source of a water based coolant for flowing through the outer shell for heat exchange with the ammonia refrigerant.
  • the microchannel coil may be provided at least partially within the outer shell.
  • the present application and the resultant patent further provide herein a cascade refrigeration system.
  • the cascade refrigeration system may include a low side cycle and a high side cycle.
  • the high side cycle may include a water cooled, microchannel heat exchanger.
  • the water cooled, microchannel heat exchanger may comprise an outer shell and a microchannel coil therein.
  • the outer shell may comprise a plate like shape or a cylinder like shape.
  • the cascade outer shell comprises a shell fluid inlet and a shell fluid outlet.
  • the microchannel coil may comprise aluminum.
  • the microchannel coil may comprise a microchannel fluid inlet and a microchannel fluid outlet.
  • the present application and the resultant patent further provide herein a cascade refrigeration system.
  • the cascade refrigeration system may include a low side cycle comprising a carbon dioxide refrigerant and a high side cycle comprising an ammonia refrigerant.
  • the high side cycle may comprise a water cooled condenser with a microchannel coil therein.
  • the present invention also provides a method of refrigeration, comprising: providing a condenser having an outer shell and a microchannel coil; wherein: an ammonia refrigerant flows through the microchannel coil; and a water based coolant flows through the outer shell for heat exchange with the ammonia refrigerant.
  • Fig. 1 shows an example of a cascade refrigeration system 100.
  • the cascade refrigeration system 100 may be used to cool any type of enclosure for use in, for example, supermarkets, cold storage, and the like.
  • the cascade refrigeration system 100 also may be applicable to heating, ventilation, air conditioning, and/or different types of commercial or industrial applications.
  • the overall cascade refrigeration system 100 may have any suitable size, shape, configuration, or capacity.
  • the cascade refrigeration system may include a first side or a high side cycle 110 and a second side or a low side cycle 120.
  • the high side cycle 110 may include one or more high side compressors 130, a high side condenser 140, and a high side expansion valve 150. Additional components also may be used herein.
  • the high side cycle 110 may include a flow of a natural refrigerant 160.
  • the natural refrigerant 160 may include a flow of ammonia 170.
  • Other types of refrigerants may be used herein.
  • the high side cycle 110 and the components therein may have any suitable size, shape, configuration, or capacity. Other components and other configurations may be used herein.
  • the high side condenser 140 typically may be a brazed plate heat exchanger, a copper tube and aluminum fin heat exchanger, and the like.
  • the high side condenser 140 may be water cooled via a flow of water 180 and/or glycol based mixtures.
  • Such known condensers may have a limited operating temperature gradient.
  • the low side cycle 120 may include one or more low side compressors 190, a low side vapor separator tank 200, a medium temperature loop 210, and a low temperature loop 220.
  • the medium temperature loop 210 may include a pump 230 and one or more medium temperature evaporators 240.
  • the low temperature loop 220 may include a low side expansion valve 250 and one or more low temperature evaporators 260. Additional components also may be used herein.
  • the low side cycle 120 may include a natural refrigerant 160 in the form of a flow of carbon dioxide 270 and the like. Other types of refrigerants may be used herein.
  • the components of the low side cycle 120 may have any suitable size, shape, configuration, or capacity. Other components and other configurations may be used herein.
  • the two cycles 110, 120 may interface through a cascade evaporator/condenser 280.
  • the respective flows of refrigerant 170, 270 may exchange heat via the cascade evaporator/condenser 280.
  • the cascade evaporator/condenser 280 may have any suitable size, shape, configuration, or capacity. Other components and other configurations may be used herein.
  • the flow of ammonia 170 may be compressed by the high side compressor 130 and condensed in the high side condenser 140.
  • the flow of ammonia 170 may pass through the high side expansion valve 150 and exchange heat in the cascade evaporator/condenser 280.
  • the carbon dioxide refrigerant 270 may be compressed by the low side compressor 190 and pass through the cascade evaporator/condenser 280 to exchange heat therein.
  • the carbon dioxide refrigerant 270 may be separated in the vapor separator tank 200 and passed through the medium temperature loop 210 and the low temperature loop 220. The respective refrigeration cycles may then repeat herein.
  • Figs. 2-4 show an example of a water cooled, microchannel condenser 300.
  • the water cooled, microchannel condenser 300 may include an outer shell 310.
  • the outer shell 310 may take a plate like or a clam shell-like appearance 315. Other shapes and configurations may be used herein.
  • the outer shell 310 may define an interior fluid space 320 therein.
  • the water cooled, microchannel condenser 300 also may include a microchannel coil 330.
  • the microchannel coil 330 may be made out of aluminum and/or alloys thereof in whole or in part for good heat exchange therethrough.
  • the microchannel coil 330 may extend through the outer shell 310 and into the interior fluid space 320.
  • the microchannel coil 330 may be considered to "float" within the interior fluid space 320.
  • the water cooled, microchannel condenser 300 may include a shell fluid inlet 340 and a shell fluid outlet 350.
  • the shell fluid inlet 340 and the shelf fluid outlet 350 may be in communication with the interior fluid space 320.
  • a number of web flow diverters 360 may be positioned within the interior fluid space 320 so as to promote the agitation of the fluid therein.
  • the water cooled, microchannel condenser 300 may include a microchannel fluid inlet 370 and a microchannel fluid outlet 380.
  • the microchannel fluid inlet 370 and the microchannel fluid outlet 380 may be in communication with the microchannel coil 330.
  • the water cooled, microchannel condenser 300, and the components thereof, may have any suitable size, shape, configuration, or capacity. Other components and other configurations may be used herein.
  • the flow of ammonia 170 flows to the water cooled, microchannel condenser 300 via the high side compressors 130.
  • the flow of ammonia 170 enters via the microchannel fluid inlet 370, passes through the microchannel coil 330 within the interior fluid space 320, and exits via the microchannel fluid outlet 380.
  • the flow of water or other coolant enters the water cooled, microchannel condenser 300 via the shell fluid inlet 340.
  • the water 180 fills the interior fluid space 220 and exchanges heat with the flow of ammonia 170 within the microchannel coil 330.
  • the web flow diverters 360 may cause turbulence therein for enhanced heat transfer.
  • the flow of water 180 then exits the interior fluid space 320 via the microchannel fluid outlet 380.
  • the flow of water 180 may be reused or recycled as appropriate.
  • Fig. 5 shows an alternative embodiment of a water cooled, microchannel condenser 400 as may be described herein.
  • an outer shell 410 may take more of a cylinder like shape 420 and the like.
  • the outer shell 410 may take other shapes and sizes.
  • the cylinder 420 defines the interior fluid space 320 for the microchannel coil 330 as well as the associated inlets 340, 370 and outlets 350, 380.
  • Other components and other configurations may be used herein.
  • the use of the water cooled, microchannel condensers 300, 400 may provide improved efficiency for the overall cascade refrigeration system 100.
  • the use of the microchannel coil 330 provides an ammonia charge reduction as compared to conventional condensers given the reduced cross-sectional area therein.
  • the microchannel coil 330 may provide higher overall operating temperature gradients given the use of the aluminum. The improved efficiency with the lower ammonia charge thus may provide for an overall cost advantage herein.
  • a flow of carbon dioxide or other refrigerants may be used herein. If carbon dioxide is used, the microchannel coil 330 may be used but not called a condenser. Rather, the microchannel coil 330 may be positioned within the outer shell 310 in what may be described as a fluid (carbon dioxide and the like) to fluid (water and the like) heat exchanger. Other components and other configurations may be used herein.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Sorption Type Refrigeration Machines (AREA)
EP16160017.6A 2015-03-11 2016-03-11 Condenseur à microcanaux refroidi par eau Withdrawn EP3073218A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14/644,265 US20160265814A1 (en) 2015-03-11 2015-03-11 Water Cooled Microchannel Condenser

Publications (1)

Publication Number Publication Date
EP3073218A1 true EP3073218A1 (fr) 2016-09-28

Family

ID=55752147

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16160017.6A Withdrawn EP3073218A1 (fr) 2015-03-11 2016-03-11 Condenseur à microcanaux refroidi par eau

Country Status (5)

Country Link
US (1) US20160265814A1 (fr)
EP (1) EP3073218A1 (fr)
CN (1) CN105972848A (fr)
AU (1) AU2016200845A1 (fr)
BR (1) BR102016005257A2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106642809A (zh) * 2016-12-28 2017-05-10 江苏康泰热交换设备工程有限公司 微通道热管采暖方法及装置
CL2016003386A1 (es) * 2016-12-29 2018-09-21 Dictuc S A 20% Equipo recuperador de aromas desde cubas fermentativas
US10648701B2 (en) 2018-02-06 2020-05-12 Thermo Fisher Scientific (Asheville) Llc Refrigeration systems and methods using water-cooled condenser and additional water cooling
JP7189423B2 (ja) * 2018-10-02 2022-12-14 ダイキン工業株式会社 冷凍サイクル装置
EP3862656B1 (fr) 2018-10-02 2024-06-05 Daikin Industries, Ltd. Dispositif à cycle frigorifique
WO2020071299A1 (fr) * 2018-10-02 2020-04-09 ダイキン工業株式会社 Dispositif à cycle frigorifique
JP7505748B2 (ja) * 2020-07-22 2024-06-25 中山エンジニヤリング株式会社 熱交換器
CN111928538B (zh) * 2020-08-10 2025-06-24 珠海格力电器股份有限公司 微通道换热器、空调器、热泵系统
CN116085878A (zh) * 2021-11-08 2023-05-09 广东美的暖通设备有限公司 电控盒以及空调外机

Citations (8)

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JPS58106394A (ja) * 1981-12-18 1983-06-24 Hitachi Ltd 熱交換器
EP1394482A2 (fr) * 2002-08-30 2004-03-03 KKW Kulmbacher Klimageräte-Werk GmbH Installation de pompe à chaleur
WO2009013180A1 (fr) * 2007-07-23 2009-01-29 M.T.A. S.P.A. Echangeur de chaleur pourvu de minicanaux et/ou de microcanaux
US20120151950A1 (en) * 2010-12-15 2012-06-21 Grundfos Holding A/S Heat transfer system
US20130091891A1 (en) * 2010-11-17 2013-04-18 Hill Phoenix, Inc. Cascade refrigeration system with modular ammonia chiller units
EP2708833A1 (fr) * 2012-09-14 2014-03-19 Hitachi Appliances, Inc. Système de réfrigération en cascade
US20140124171A1 (en) * 2011-06-27 2014-05-08 Carrier Corporation Micro-port shell and tube heat exchanger
EP2829818A2 (fr) * 2013-07-26 2015-01-28 GD Midea Heating & Ventilating Equipment Co., Ltd. Chauffe-eau de pompe à chaleur

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KR20110074970A (ko) * 2008-07-31 2011-07-05 조지아 테크 리서치 코포레이션 마이크로스케일 열 또는 열 및 물질 전달 시스템
US20120087088A1 (en) * 2008-08-05 2012-04-12 Pipeline Micro, Inc. Microscale heat transfer systems
US20110252826A1 (en) * 2010-04-14 2011-10-20 A. Epstein & Sons International, Inc. Cascading energy system
US9541311B2 (en) * 2010-11-17 2017-01-10 Hill Phoenix, Inc. Cascade refrigeration system with modular ammonia chiller units
US8345445B2 (en) * 2010-11-23 2013-01-01 Tyco Electronics Corporation Heat sink assembly for a pluggable module
US9038389B2 (en) * 2012-06-26 2015-05-26 Harris Corporation Hybrid thermal cycle with independent refrigeration loop

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58106394A (ja) * 1981-12-18 1983-06-24 Hitachi Ltd 熱交換器
EP1394482A2 (fr) * 2002-08-30 2004-03-03 KKW Kulmbacher Klimageräte-Werk GmbH Installation de pompe à chaleur
WO2009013180A1 (fr) * 2007-07-23 2009-01-29 M.T.A. S.P.A. Echangeur de chaleur pourvu de minicanaux et/ou de microcanaux
US20130091891A1 (en) * 2010-11-17 2013-04-18 Hill Phoenix, Inc. Cascade refrigeration system with modular ammonia chiller units
US20120151950A1 (en) * 2010-12-15 2012-06-21 Grundfos Holding A/S Heat transfer system
US20140124171A1 (en) * 2011-06-27 2014-05-08 Carrier Corporation Micro-port shell and tube heat exchanger
EP2708833A1 (fr) * 2012-09-14 2014-03-19 Hitachi Appliances, Inc. Système de réfrigération en cascade
EP2829818A2 (fr) * 2013-07-26 2015-01-28 GD Midea Heating & Ventilating Equipment Co., Ltd. Chauffe-eau de pompe à chaleur

Also Published As

Publication number Publication date
US20160265814A1 (en) 2016-09-15
BR102016005257A2 (pt) 2016-09-13
CN105972848A (zh) 2016-09-28
AU2016200845A1 (en) 2016-09-29

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