WO2012071202A2 - Groupe frigorifique avec échangeur thermique résistant à la corrosion - Google Patents

Groupe frigorifique avec échangeur thermique résistant à la corrosion Download PDF

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Publication number
WO2012071202A2
WO2012071202A2 PCT/US2011/060535 US2011060535W WO2012071202A2 WO 2012071202 A2 WO2012071202 A2 WO 2012071202A2 US 2011060535 W US2011060535 W US 2011060535W WO 2012071202 A2 WO2012071202 A2 WO 2012071202A2
Authority
WO
WIPO (PCT)
Prior art keywords
refrigeration unit
heat exchange
tube
heat
heat exchanger
Prior art date
Application number
PCT/US2011/060535
Other languages
English (en)
Other versions
WO2012071202A3 (fr
Inventor
Michael F. Taras
Mark J. Perkovich
Original Assignee
Carrier Corporation
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 Carrier Corporation filed Critical Carrier Corporation
Priority to EP11784915.8A priority Critical patent/EP2643644B1/fr
Priority to SG2013039912A priority patent/SG190390A1/en
Priority to US13/989,080 priority patent/US20130233524A1/en
Priority to DK11784915T priority patent/DK2643644T3/da
Priority to CN201180056599.5A priority patent/CN103221762B/zh
Publication of WO2012071202A2 publication Critical patent/WO2012071202A2/fr
Publication of WO2012071202A3 publication Critical patent/WO2012071202A3/fr

Links

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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/003—Transport containers
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • F25D19/003—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors with respect to movable containers
    • 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
    • F28D1/0233—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 air flow channels
    • F28D1/024—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 air flow channels with an air driving element
    • 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
    • F28D1/047—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 the conduits being bent, e.g. in a serpentine or zig-zag
    • 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
    • F28F1/24—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 and extending transversely
    • F28F1/32—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 and extending transversely the means having portions engaging further tubular elements
    • 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
    • F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2500/00—Problems to be solved
    • F25D2500/02—Geometry problems

Definitions

  • This invention relates generally to refrigeration units and gas cooler/condenser heat exchangers and, more particularly, to improving condensate drainage and corrosion durability on gas cooler/condenser heat exchangers of transport refrigeration units.
  • Perishable goods are commonly transported in a controlled environment within an enclosed space such as an insulated cargo box of a truck, trailer, container, or intermodal container.
  • a refrigeration system also known as a transport refrigeration unit, is used in operative association with the enclosed space within the cargo box for controlling the temperature of the air within the enclosed space within a desired temperature range selected for the particular type of perishable goods stowed within the cargo box.
  • the refrigeration unit is mounted to a wall of the cargo box, typically to the forward end of the cargo box, opposite the doors to the cargo box which at typically at the rear of the cargo box.
  • the refrigeration unit includes a refrigerant compressor and condenser disposed externally of the cargo box and an evaporator disposed within the enclosed space of the cargo box, the compressor, condenser and evaporator being connected in a refrigerant circuit in series refrigerant flow relationship.
  • air to be cooled is drawn from within the enclosed space, passes through an evaporator in heat exchange relationship with the refrigerant vapor passing through the heat exchange tubes of the evaporator, and then supplied back to the enclosed space.
  • the refrigerant vapor having traversed the evaporator is compressed in the compressor to a high temperature, high pressure vapor and then passed through the condenser which functions as a refrigerant heat rejection heat exchanger wherein the high temperature refrigerant vapor passes is heat exchange relationship with cooler air, typically ambient air, or water/glycol solution.
  • the condenser includes a standard round tube plate fin (RTPF) heat exchanger having an array of round tubes penetrating a pack of spaced plate fins.
  • RTPF round tube plate fin
  • a plurality of round tubes are inserted through holes in the plates of the fin pack so as to extend longitudinally through the plates of the fin pack and a pair of tube sheets disposed at opposite ends of the fin pack.
  • the ends of the round tubes penetrating the tube sheets are connected by tube bends or return bends to form one or more refrigerant flow circuits through heat exchanger.
  • the condenser heat exchanger is arranged with the round tubes extended longitudinally in a generally horizontal direction and the fin plates extend in a generally vertical plane.
  • the fin plates are generally flat plates or wavy plates and may include louvers or other fin enhancements to improve air-side heat transfer performance.
  • a transport refrigeration unit which having a refrigerant heat rejection heat exchanger (condenser/gas cooler) that promotes adequate water drainage and corrosion durability.
  • the refrigerant heat rejection heat exchanger includes a wraparound finned tube coil extending along the periphery of an associated condenser/gas cooler fan.
  • the wraparound finned tube coil has a plurality of heat exchange tube loops and a plurality of plate fins mounted to the plurality of heat exchange tube loops.
  • Each heat exchange tube loop is formed by a plurality of linear tube segments or a plurality of hairpin tubes connected by return bends, with each linear tube segment extending longitudinally at an inclination angle with respect to vertical of at least 20 degrees.
  • each linear tube segment extends longitudinally at an inclination angle in the range from at least 20 degrees to 90 degrees.
  • Each heat exchange loop may have a generally square configuration, a generally rhombus-like configuration, a generally hexagon-like configuration or other configuration without any significant length of vertically extending tube segments.
  • the fins may be flat plate fins or wavy plate fins, with or without further airside heat transfer enhancements such as louvers, offsets or the like.
  • FIG. 1 is a perspective view of a refrigerated transport container, equipped with a refrigeration unit, with a portion of the side wall and ceiling removed;
  • FIG. 2 is an elevation view of the front of the refrigeration unit mounted to the forward wall of the container of FIG. 1 with the condenser/gas cooler module exposed;
  • FIG. 3 is a perspective view of an exemplary embodiment of the refrigerant heat rejection heat exchanger (condenser/gas cooler) disclosed herein;
  • FIG. 4 is an elevation view taken generally along line 4-4 of FIG. 3;
  • FIG. 5 is a plan view taken generally along line 5-5 of FIG. 4;
  • FIG. 6 is a diagrammatic view illustrating an exemplary shape of a single heat exchange tube loop of the wraparound finned tube heat exchanger disclosed herein;
  • FIG. 7 is a diagrammatic view illustrating another exemplary shape of a single heat exchange tube loop of the wraparound finned tube heat exchanger disclosed herein;
  • FIG. 8 is an enlarged view of the right hand bend area 8-8 of FIG. 6;
  • FIG. 9 is a diagrammatic view illustrating an exemplary embodiment of a single circular heat exchanger loop of the wraparound finned tube heat exchanger disclosed herein;
  • FIG.10 is a diagrammatic view illustrating an exemplary embodiment of a single oval heat exchanger loop of the wraparound finned tube heat exchanger disclosed herein.
  • FIG. 1 of the drawing there is depicted an exemplary embodiment of a refrigerated cargo container, generally referenced 10.
  • the cargo container 10 has an insulated box-like structure formed of a forward or front wall 12, a back or rear wall 14, a pair of opposed sidewalls 13 and 15, a ceiling 16 and a floor 18.
  • the box-like structure defines a cargo space 11 in which the bins, cartons or pallets of cargo 100 being transported are stacked on the floor 18.
  • the rear wall 14 is provided with one or more doors (not shown) through which access to the cargo space may be had for loading the cargo 18 into the container 10. When the doors are closed, a substantially air-tight, sealed cargo space is established within the container 10 which prevents inside air from escaping the cargo space 11.
  • a refrigeration unit 20 is mounted to a wall of the container 10.
  • the refrigeration unit 20 is received in an opening in the forward wall 12 of the container 10 and mounted around its perimeter to the forward wall 12 of the container 10, for example as depicted in FIG. 1, for conditioning the air within the refrigerated chamber 11, i.e. the cargo space of the container 10.
  • the refrigeration unit 20 includes a compressor 22 with an associated compressor drive motor and a condenser/gas cooler module 24 isolated from the cargo space 11 , and an evaporator module operatively associated with the cargo space 11 defined within the container 10.
  • the evaporator module includes a pair of evaporator fans 26 disposed within an upper portion of the refrigeration unit in air flow communication with the interior volume of the cargo box 11 and an evaporator heat exchanger (not shown) having a plurality of refrigerant conveying tubes through which refrigerant vapor flowing through the refrigeration circuit of the refrigeration unit 20 passes in heat exchange relationship with air to be cooled that is drawn from within cargo space 11 by the evaporator fans 26, passed over the evaporator heat exchanger surface and supplied back to the cargo space.
  • the condenser/gas cooler module 24 includes a condenser fan 28 and a refrigerant heat rejection heat exchanger 30 mounted in the forward section of the refrigeration unit 20 external to the cargo space 11.
  • the refrigerant heat rejection heat exchanger 30 may function either as a condenser or as a gas cooler.
  • the refrigerant heat rejection heat exchanger functions as condenser, that is to condense the high temperature, high pressure refrigerant vapor passing therethrough to a high pressure, lower temperature refrigerant liquid.
  • the refrigerant heat rejection heat exchanger In refrigeration units wherein the refrigerant heat rejection heat exchanger is a component of a refrigerant vapor compression system operating in a transcritical cycle, the refrigerant heat rejection heat exchanger functions only as a gas cooler, that is to cool, but not condense, the high temperature, high pressure refrigerant vapor passing there through to a high pressure, lower temperature refrigerant vapor.
  • the refrigerant heat rejection heat exchanger 30 comprises a finned tube heat exchanger that wraps around the condenser fan 28.
  • the wraparound finned tube coil 32 has a plurality of heat exchange tube loops 34 and a plurality of plate fins 40 mounted to the plurality of heat exchange tube loops 34.
  • the fins 40 may be flat plate fins or wavy plate fins, as depicted in FIG. 5, with or without further airside heat transfer enhancements, such as louvers, offsets, corrugations or the like.
  • the wraparound finned tube coil 32 may have any several tube rows, typically from two to twelve, with at least one tube loop 34, typically two to four, per row.
  • the wraparound finned tube heat exchanger 32 has five tube rows with three heat exchange tube loops 34 per row.
  • the condenser fan 28 draws ambient outdoor air through the refrigerant heat rejection heat exchanger 30 behind the front panel 21 (incoming air flow in direction of arrows) and discharges that air back into the outdoor environment through and an opening 23 the front panel 21 of the refrigeration unit 20 about the condenser/gas cooler fan 28.
  • the position of the fan 28 relative to the condenser/gas cooler 30 is not limiting of the invention. Both configurations with fan 28 positioned upstream or downstream of the condenser/gas cooler may be employed, however the latter arrangement is thermodynamically more effective.
  • each heat exchange tube loop 34 is formed by a plurality of linear tube segments or hairpins 36 connected by return bends 38.
  • Each heat exchange tube loop 34 may be formed of a continuous heat exchange tube 40 extending between a pair of tube sheets 42 and 44.
  • the ends of the heat exchange tubes 40 penetrating each tube sheet 42 and 44 may be interconnected by U-bends (not shown) to form one or more refrigerant flow circuits, as desired, through the heat exchanger 30 in a manner well- known to those skilled in the art.
  • each heat exchange tube loop 34 the heat exchange tube 40 is bent as appropriate to delineate a desired shape.
  • the heat exchange tube loop 34 may take the shape of a parallelogram, such as illustrated in the exemplary embodiment depicted in FIG. 6, the heat exchange tube loop 34 is formed by bending the heat exchange tube 40 to delineate a generally square (rhombus with equal included angles) shape extending between tube sheets 42 and 44.
  • the heat exchange tube loop 34 may delineate other shapes also, for example such as in the exemplary embodiment depicted in FIG. 7, where the heat exchange tube loop 34 is formed by bending the heat exchange tube 40 to delineate a generally hexagonal shape extending between the tube sheets 42 and 44.
  • the heat exchange tube loop 34 may also be formed as a non- linear tube loop having, for example, a generally circular configuration such as illustrated in FIG. 9 or a generally oval confirmation such as illustrated in FIG. 10.
  • each linear tube segment 36 of each heat exchange loop 34 extends longitudinally at an inclination angle, ⁇ , with respect to vertical, V, of at least 20 degrees.
  • each linear tube segment extends longitudinally at an inclination angle in the range from at least 20 degrees up to and including 90 degrees, which represents a horizontally extending tube segment.
  • the angle of indication, ⁇ is measured as the interior included angle between the longitudinal axis of the linear tube segment 36 and a vertical axis, V.
  • the plate fins 40 would extend generally horizontally which would in no way promote drainage of water from the within surface and, in the case of wavy plate fins, allow
  • heat rejection heat exchanger construction can comprise more than one heat rejection heat exchanger.
  • condenser/gas cooler and intercooler as well as condenser/gas cooler and radiator can be integrated in a single module and formed (bent) at the same time.
  • the former configurations may be utilized in high efficiency systems and the latter designs applied in the HVAC&R systems driven by the engine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un groupe frigorifique de transport qui comporte un échangeur thermique à rejet de chaleur de fluide frigorigène (condenseur/refroidisseur de gaz) qui favorise un écoulement des eaux et une résistance à la corrosion. Un serpentin tubulaire à ailettes enveloppant comporte une pluralité de boucles tubulaires d'échange thermique et une pluralité d'ailettes-plaques montées sur la pluralité de boucles tubulaires d'échange thermique. Chaque boucle tubulaire d'échange thermique est constituée d'une pluralité de segments tubulaires linéaires ou segments tubulaires en épingle à cheveux reliés par des coudes à 180°, chaque segment tubulaire linéaire ou de segment tubulaire en épingle à cheveux s'étendant longitudinalement sous un angle d'inclinaison par rapport à la verticale d'au moins 20 degrés.
PCT/US2011/060535 2010-11-24 2011-11-14 Groupe frigorifique avec échangeur thermique résistant à la corrosion WO2012071202A2 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP11784915.8A EP2643644B1 (fr) 2010-11-24 2011-11-14 Groupe frigorifique avec échangeur thermique résistant à la corrosion
SG2013039912A SG190390A1 (en) 2010-11-24 2011-11-14 Refrigeration unit with corrosion durable heat exchanger
US13/989,080 US20130233524A1 (en) 2010-11-24 2011-11-14 Refrigeration Unit With Corrosion Durable Heat Exchanger
DK11784915T DK2643644T3 (da) 2010-11-24 2011-11-14 Køleenhed med korrosionsbestandig varmeveksler
CN201180056599.5A CN103221762B (zh) 2010-11-24 2011-11-14 具有耐腐蚀的热交换器的制冷单元

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41681510P 2010-11-24 2010-11-24
US61/416,815 2010-11-24

Publications (2)

Publication Number Publication Date
WO2012071202A2 true WO2012071202A2 (fr) 2012-05-31
WO2012071202A3 WO2012071202A3 (fr) 2012-11-08

Family

ID=44993962

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/060535 WO2012071202A2 (fr) 2010-11-24 2011-11-14 Groupe frigorifique avec échangeur thermique résistant à la corrosion

Country Status (6)

Country Link
US (1) US20130233524A1 (fr)
EP (1) EP2643644B1 (fr)
CN (1) CN103221762B (fr)
DK (1) DK2643644T3 (fr)
SG (1) SG190390A1 (fr)
WO (1) WO2012071202A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015198639A (ja) * 2014-03-31 2015-11-12 ダイキン工業株式会社 混合ガス供給装置及びコンテナ用冷凍装置
JP5862737B1 (ja) * 2014-09-16 2016-02-16 ダイキン工業株式会社 コンテナ用冷凍装置
EP3526527B1 (fr) 2016-10-12 2021-02-24 Carrier Corporation Récipient de stockage réfrigéré
SG11202012506VA (en) 2018-11-12 2021-05-28 Carrier Corp Compact heat exchanger assembly for a refrigeration system
EP3686525A1 (fr) * 2019-01-25 2020-07-29 Carrier Corporation Bobine réfrigérante autoventilée

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US623348A (en) * 1899-04-18 Fan-blower heating apparatus
US1553093A (en) * 1920-05-10 1925-09-08 Arthur B Modine Radiator
US2252064A (en) * 1938-10-22 1941-08-12 Jr Edward S Cornell Heat exchange unit and system
US2363974A (en) * 1943-08-02 1944-11-28 Advance Mfg Inc Mounting for refrigerating apparatus and the like
US2694553A (en) * 1951-01-04 1954-11-16 Trane Co Refrigeration apparatus for railroad cars
US3759321A (en) * 1971-10-22 1973-09-18 Singer Co Condenser coil apparatus
US4550694A (en) * 1984-05-11 1985-11-05 Evans Cooling Associates Process and apparatus for cooling internal combustion engines
US5538075A (en) * 1988-05-02 1996-07-23 Eubank Manufacturing Enterprises, Inc. Arcuate tubular evaporator heat exchanger
NO915127D0 (no) * 1991-12-27 1991-12-27 Sinvent As Kompresjonsanordning med variabelt volum
US5660050A (en) * 1995-07-10 1997-08-26 Russell Coil Company Refrigeration condenser, receiver subcooler system
US20050279127A1 (en) * 2004-06-18 2005-12-22 Tao Jia Integrated heat exchanger for use in a refrigeration system
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ITPD20050132A1 (it) * 2005-05-11 2006-11-12 Costan Spa Procedimento per raffreddare la co2 in un impianto frigorifero ed uno scambiatore di calore a batteria alettata per realizzare tale procedimento
EP2087296A4 (fr) * 2006-11-08 2012-04-25 Carrier Corp Pompe à chaleur avec refroidisseur intermédiaire
RU2010129958A (ru) * 2007-12-18 2012-01-27 Эй-ХИТ ЭЛЛАЙД ХИТ ИКСЧЕНДЖ ТЕКНОЛОДЖИ АГ (DE) Модульная теплообменная система

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Also Published As

Publication number Publication date
EP2643644B1 (fr) 2019-07-31
CN103221762B (zh) 2016-10-19
DK2643644T3 (da) 2019-11-04
CN103221762A (zh) 2013-07-24
WO2012071202A3 (fr) 2012-11-08
US20130233524A1 (en) 2013-09-12
EP2643644A2 (fr) 2013-10-02
SG190390A1 (en) 2013-06-28

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