EP2936007A1 - Dispositif magnétocalorique à pompe continue - Google Patents

Dispositif magnétocalorique à pompe continue

Info

Publication number
EP2936007A1
EP2936007A1 EP13799164.2A EP13799164A EP2936007A1 EP 2936007 A1 EP2936007 A1 EP 2936007A1 EP 13799164 A EP13799164 A EP 13799164A EP 2936007 A1 EP2936007 A1 EP 2936007A1
Authority
EP
European Patent Office
Prior art keywords
regenerator housing
axial direction
pair
heat
heat pump
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Withdrawn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
EP13799164.2A
Other languages
German (de)
English (en)
Inventor
Michael Alexander BENEDICT
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.)
Haier US Appliance Solutions Inc
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of EP2936007A1 publication Critical patent/EP2936007A1/fr
Withdrawn legal-status Critical Current

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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B21/00—Machines, plants or systems, using electric or magnetic effects
    • 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
    • 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
    • F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
    • F25B2321/002—Details of machines, plants or systems, using electric or magnetic effects by using magneto-caloric effects
    • F25B2321/0021—Details of machines, plants or systems, using electric or magnetic effects by using magneto-caloric effects with a static fixed magnet
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Definitions

  • the subject matter of the present disclosure relates generally to a heat pump system that uses magneto caloric materials to exchange heat with a circulating heat transfer fluid.
  • Conventional refrigeration technology typically utilizes a heat pump that relies on compression and expansion of a fluid refrigerant to receive and reject heat in a cyclic manner so as to effect a desired temperature change or i.e. transfer heat energy from one location to another.
  • This cycle can be used to provide e.g., for the receiving of heat from a refrigeration compartment and the rejecting of such heat to the environment or a location that is external to the compartment.
  • Other applications include air conditioning of residential or commercial structures.
  • a variety of different fluid refrigerants have been developed that can be used with the heat pump in such systems.
  • Magneto caloric materials i.e. materials that exhibit the magneto caloric effect - provide a potential alternative to fluid refrigerants for heat pump applications.
  • MCMs Magneto caloric materials
  • the magnetic moments of an MCM will become more ordered under an increasing, externally applied magnetic field and cause the MCM to generate heat.
  • MCM magneto caloric material
  • the ambient conditions under which a heat pump may be needed can vary substantially.
  • ambient temperatures can range from below freezing to over 90 °F.
  • Some MCMs are capable of accepting and generating heat only within a much narrower temperature range than presented by such ambient conditions.
  • a heat pump system that can address certain challenges such as those identified above would be useful.
  • Such a heat pump system that can also be used in e.g., a refrigerator appliance would also be useful.
  • the present invention provides a heat pump system having magneto caloric material positioned in a continuously rotating regenerator.
  • the magneto caloric material is staged so that as the regenerator is rotated, a portion of the material is cycled in and out of a magnetic field in a continuous manner.
  • a heat transfer fluid is circulated through the magneto caloric material simultaneously along at least two paths to provide for the transfer of heat both to and from the material in a cyclic manner.
  • the magneto caloric material may include zones having different temperature ranges of responsiveness to the magnetic field.
  • An appliance using a heat pump system based on magneto caloric material is also provided.
  • the heat pump may also be used in other applications for heating, cooling, or both.
  • the present invention provides a heat pump system that includes a regenerator housing defining a circumferential direction and rotatable about an axial direction, the axial direction extending between a first end and a second end of the regenerator housing.
  • the regenerator housing includes a plurality of chambers with each chamber extending longitudinally along the axial direction between a pair of openings.
  • the plurality of chambers are arranged proximate to each other along the circumferential direction.
  • a plurality of stages are provide with each stage comprising magneto caloric material positioned within one of the plurality of chambers and extending along the axial direction.
  • This exemplary embodiment further includes a pair of valves with a first valve attached to the first end of the regenerator housing and a second valve attached to the second end of the regenerator housing.
  • the first valve and second valve each include a plurality of apertures spaced apart from each other along the circumferential direction with each aperture positioned adjacent to one of the pair of openings of one of the plurality of chambers.
  • a magnetic element is positioned proximate to the regenerator housing and extends along the axial direction. The magnetic element creates a magnetic field and is positioned so that a subset of the plurality of stages are moved in and out of the magnetic field as the regenerator housing is rotated about the axial direction.
  • This exemplary system also includes a pair of seals with a first seal positioned adjacent to the first valve and a second seal adjacent to the second valve such that the regenerator housing and the pair of valves are rotatable relative to the pair of seals.
  • the first seal and the second seal each include a pair of ports positioned in an opposing manner relative to each other and also positioned so that each port can selectively align with at least one of the pair of openings of the plurality of chambers as the regenerator housing is rotated about the axial direction.
  • the present invention provides a refrigerator appliance that includes a compartment for the storage of food items; a first heat exchanger for the removal of heat from the compartment; a second heat exchanger for the delivery of heat removed by the first heat exchanger to a location external of the refrigerator appliance
  • the heat pump further includes a regenerator housing defining a circumferential direction and rotatable about an axial direction, the axial direction extending between a first end and a second end of the regenerator housing.
  • the regenerator housing includes a plurality of chambers with each chamber extending longitudinally along the axial direction between a pair of openings. The plurality of chambers are arranged proximate to each other along the circumferential direction.
  • a plurality of stages are provided with each stage including magneto caloric material positioned within one of the plurality of chambers and extending along the axial direction.
  • a pair of valves includes a first valve attached to the first end of the regenerator housing and a second valve attached to the second end of the regenerator housing.
  • the first valve and second valve each include a plurality of apertures spaced apart from each other along the circumferential direction with each aperture positioned adjacent to one of the pair of openings of one of the plurality of chambers.
  • a magnetic element is positioned proximate to the regenerator housing and extends along the axial direction. The magnetic element creates a magnetic field. The magnetic element is positioned so that a subset of the plurality of stages are moved within the magnetic field as the regenerator housing is rotated about the axial direction.
  • a pair of seals are provided with a first seal positioned adjacent to the first valve and a second seal positioned adjacent to the second valve such that the regenerator housing and the pair of valves are rotatable relative to the pair of seals.
  • the first seal includes the first inlet port and the first outlet port.
  • the second seal includes the second inlet port and a second outlet port. The first inlet port and the first outlet port are positioned in an opposing manner about the first seal and second inlet port and the second outlet port are positioned in an opposing manner about the second seal.
  • the first inlet port and the second outlet port are positioned for fluid communication with the pair of openings of at least one chamber at a time as the regenerator housing is rotated about the axial direction so that heat transfer fluid from the first heat exchanger may receive heat from the stage of magneto caloric material located in the at least one chamber.
  • the second inlet port and the first outlet port are positioned for fluid communication with the pair of openings of at least one other chamber at a time as the regenerator housing is rotated about the axial direction so that heat transfer fluid from the second heat exchanger may deliver heat to the magneto caloric material in the at least one other chamber.
  • FIG. 1 provides an exemplary embodiment of a refrigerator appliance of the present invention.
  • FIG. 2 is a schematic illustration of an exemplary heat pump system of the present invention positioned in an exemplary refrigerator with a machinery compartment and a refrigerated compartment.
  • FIG. 3 provides a perspective view of an exemplary heat pump of the present invention.
  • FIG. 4 is an exploded view of the exemplary heat pump of FIG. 3.
  • FIG. 5 is a cross-sectional view of the exemplary heat pump of FIG. 3.
  • FIG. 6 is perspective view of the exemplary heat pump of FIG. 3. Seals located at the ends of a regenerator housing have been removed for purposes of further explanation of this exemplary embodiment of the invention as set forth below.
  • FIG. 7 is a schematic representation of various steps in the use of a stage of the heat pump of FIG. 3.
  • refrigerator appliance 10 is depicted as an upright refrigerator having a cabinet or casing 12 that defines a number of internal storage compartments or chilled chambers.
  • refrigerator appliance 10 includes upper fresh-food compartments 14 having doors 16 and lower freezer compartment 18 having upper drawer 20 and lower drawer 22.
  • the drawers 20, 22 are "pull-out" type drawers in that they can be manually moved into and out of the freezer compartment 18 on suitable slide mechanisms.
  • Refrigerator 10 is provided by way of example only. Other configurations for a refrigerator appliance may be used as well including appliances with only freezer compartments, only chilled compartments, or other combinations thereof different from that shown in FIG. 1.
  • the heat pump and heat pump system of the present invention is not limited to appliances and may be used in other applications as well such as e.g., air-conditioning, electronics cooling devices, and others.
  • the use of a heat pump to provide cooling within a refrigerator is provided by way of example herein, the present invention may also be used to provide for heating applications as well.
  • FIG. 2 is a schematic view of another exemplary embodiment of a refrigerator appliance 10 including a refrigeration compartment 30 and a machinery compartment 40.
  • machinery compartment 30 includes a heat pump system 52 having a first heat exchanger 32 positioned in the refrigeration compartment 30 for the removal of heat therefrom.
  • a heat transfer fluid such as e.g., an aqueous solution, flowing within first heat exchanger 32 receives heat from the refrigeration compartment 30 thereby cooling its contents.
  • a fan 38 may be used to provide for a flow of air across first heat exchanger 32 to improve the rate of heat transfer from the refrigeration compartment 30.
  • the heat transfer fluid flows out of first heat exchanger 32 by line 44 to heat pump 100.
  • the heat transfer fluid receives additional heat from magneto caloric material (MCM) in heat pump 100 and carries this heat by line 48 to pump 42 and then to second heat exchanger 34. Heat is released to the environment, machinery compartment 40, and/or other location external to refrigeration compartment 30 using second heat exchanger 34.
  • a fan 36 may be used to create a flow of air across second heat exchanger 34 and thereby improve the rate of heat transfer to the environment.
  • Pump 42 connected into line 48 causes the heat transfer fluid to recirculate in heat pump system 52.
  • Motor 28 is in mechanical communication with heat pump 100 as will further described.
  • Heat pump system 52 is provided by way of example only. Other configurations of heat pump system 52 may be used as well. For example, lines 44, 46, 48, and 50 provide fluid communication between the various components of the heat pump system 52 but other heat transfer fluid recirculation loops with different lines and connections may also be employed. For example, pump 42 can also be positioned at other locations or on other lines in system 52. Still other configurations of heat pump system 52 may be used as well.
  • FIGS. 3, 4, 5, and 6 depict various views of an exemplary heat pump 100 of the present invention.
  • Heat pump 100 includes a regenerator housing 102 that extends longitudinally along an axial direction between a first end 118 and a second end 120.
  • the axial direction is defined by axis A-A about which regenerator housing 102 rotates.
  • a radial direction R is defined by a radius extending orthogonally from the axis of rotation A-A (FIG. 5).
  • a circumferential direction is indicated by arrows C.
  • Regenerator housing 102 defines a plurality of chambers 104 that extend longitudinally along the axial direction defined by axis A-A. Chambers 104 are positioned proximate or adjacent to each other along circumferential direction C. Each chamber 104 includes a pair of openings 106 and 108 positioned at opposing ends 1 18 and 120 of regenerator housing 102.
  • Heat pump 100 also includes a plurality of stages 112 that include MCM. Each stage 112 is located in one of the chambers 104 and extends along the axial direction. For the exemplary embodiment shown in the figures, heat pump 100 includes eight stages 112 positioned adjacent to each other along the circumferential direction as shown and extending longitudinally along the axial direction. As will be understood by one of skill in the art using the teachings disclosed herein, a different number of stages 112 other than eight may be used as well.
  • a pair of valves 114 and 116 are attached to regenerator housing 102 and rotate therewith along circumferential direction C. More particularly, a first valve 114 is attached to first end 118 and a second valve 116 is attached to second end 120.
  • Each valve 114 and 116 includes a plurality of apertures 122 and 124, respectively.
  • apertures 122 and 124 are configured as circumferentially-extending slots that are spaced apart along circumferential direction C.
  • Each aperture 122 is positioned adjacent to a respective opening 106 of a chamber 104.
  • Each aperture 124 is positioned adjacent to a respective opening 108 of a chamber 104.
  • a heat transfer fluid may flow into a chamber 104 through a respective aperture 122 and opening 106 so as to flow through the MCM in a respective stage 112 and then exit through opening 108 and aperture 124.
  • a reverse path can be used for flow of the heat transfer fluid in the opposite direction through the stage 112 of a given chamber 104.
  • Regenerator housing 102 defines a cavity 128 that is positioned radially inward of the plurality of chambers 104 and extends along the axial direction between first end 118 and second end 120.
  • a magnetic element 126 is positioned within cavity 128 and, for this exemplary embodiment, extends along the axial direction between first end 118 and second end 120. Magnetic element 126 provides a magnetic field that is directed radially outward as indicated by arrows M in FIG. 5.
  • the positioning and configuration of magnetic element 126 is such that only a subset of the plurality of stages 112 is within magnetic field M at any one time. For example, as shown in FIG. 5, stages 112a and 112e are partially within the magnetic field while stages 112b, 112c, and 112d are fully within the magnetic field M created by magnetic element 126. Conversely, the magnetic element 126 is configured and positioned so that stages 112f, 112g, and 112h are completely or substantially out of the magnetic field created by magnetic element 126. However, as regenerator housing 102 is continuously rotated along the circumferential direction as shown by arrow W, the subset of stages 112 within the magnetic field will continuously change as some stages 112 will enter magnetic field M and others will exit.
  • a pair of seals 136 and 138 is provided with the seals positioned in an opposing manner at the first end 118 and second end 120 of regenerator housing 102.
  • First seal 136 has a first inlet port 140 and a first outlet port 142 and is positioned adjacent to first valve 114.
  • ports 140 and 142 are positioned 180 degrees apart about the circumferential direction C of first seal 114.
  • ports 140 and 142 may be positioned within a range of about 170 degrees to about 190 degrees about the circumferential direction C as well.
  • First valve 114 and regenerator housing 102 are rotatable relative to first seal 136.
  • Ports 140 and 142 are connected with lines 44 and 46 (FIG. 1), respectively. As such, the rotation of regenerator housing 102 about axis A-A sequentially places lines 44 and 46 in fluid communication with at least two stages 112 of MCM at any one time as will be further described.
  • Second seal 138 has a second inlet port 144 and a second outlet port 146 and is positioned adjacent to second valve 116. As shown, ports 144 and 146 are positioned 180 degrees apart about the circumferential direction C of second seal 116. However, other configurations may be used. For example, ports 144 and 146 may be positioned within a range of about 170 degrees to about 190 degrees about the circumferential direction C as well. Second valve 116 and regenerator housing 102 are rotatable relative to second seal 138. Ports 144 and 146 are connected with lines 50 and 48 (FIG. 1), respectively.
  • regenerator housing 102 sequentially places lines 48 and 50 in fluid communication with at least two stages 112 of MCM at any one time as will be further described.
  • lines 46 and 50 will each be in fluid communication with at least one stage 112 while lines 44 and 48 will also be in fluid communication with at least one other stage 112 located about 180 degrees away along the circumferential direction.
  • FIG. 7 illustrates an exemplary method of the present invention using a schematic representation of stage 112 of MCM in regenerator housing 102 as it rotates in the direction of arrow W between positions 1 through 8 as shown in FIG. 6.
  • stage 112 is fully within magnetic field M, which causes the magnetic moments of the material to orient and the MCM to heat as part of the magneto caloric effect. Ordering of the magnetic field is created and maintained as stage 112 is rotated sequentially through positions 2, 3, and then 4 (FIG. 6) as regenerator housing 102 is rotated in the direction of arrow W.
  • the heat transfer fluid dwells in the MCM of stage 112 and, therefore, is heated. More specifically, the heat transfer fluid does not flow through stage 112 because the openings 106,108, 122, and 124 corresponding to stage 112 in positions 2, 3, and 4 are not aligned with any of the ports 140, 142, 144, or 146.
  • step 202 as regenerator housing 102 continues to rotate in the direction of arrow W, stage 112 will eventually reach position 5. As shown in FIGS. 3 and 6, at position 5 the heat transfer fluid can flow through the material as first inlet port 140 is now aligned with an opening 122 in first valve 114 and an opening 106 at the first end 118 of stage 112 while second outlet port 146 is aligned with an opening 124 in second valve 116 at the second end 120 of stage 112. As indicated by arrow QH-OUT, heat transfer fluid in stage 112, now heated by the MCM, can travel out of regenerator housing 102 and along line 48 to the second heat exchanger 34.
  • heat transfer fluid from first heat exchanger 32 flows into stage 112 from line 44 when stage 112 is at position 5. Because heat transfer fluid from the first heat exchanger 32 is relatively cooler than the MCM in stage 112, the MCM will lose heat to the heat transfer fluid.
  • stage 112 is moved sequentially through positions 6, 7, and 8 where stage 112 is completely or substantially out of magnetic field M.
  • the absence or lessening of the magnetic field is such that the magnetic moments of the material become disordered and the MCM absorbs heat as part of the magneto caloric effect.
  • the heat transfer fluid dwells in the MCM of stage 112 and, therefore, is cooled by losing heat to the MCM as the magnetic moments disorder.
  • the heat transfer fluid does not flow through stage 112 because the openings 106, 108, 122, and 124 corresponding to stage 112 when in positions 6, 7, and 8 are not aligned with any of the ports 140, 142, 144, or 146.
  • stage 112 will eventually reach position 1.
  • the heat transfer fluid in stage 112 can flow through the material as second inlet port 144 is now aligned with an opening 124 in second valve 116 and an opening 108 at the second end 120 while first outlet port 142 is aligned with an opening 122 in first valve 114 and opening 106 at first end 118.
  • heat transfer fluid in stage 112, now cooled by the MCM can travel out of regenerator housing 102 and along line 46 to the first heat exchanger 32.
  • heat transfer fluid from second heat exchanger 34 flows into stage 112 from line 50 when stage 112 is at position 5. Because heat transfer fluid from the second heat exchanger 34 is relatively warmer than the MCM in stage 112 at position 5, the MCM will lose some of its heat to the heat transfer fluid. The heat transfer fluid now travels along line 46 to the first heat exchanger 32 to receive heat and cool the refrigeration compartment 30.
  • regenerator housing 102 As regenerator housing 102 is rotated continuously, the above described process of placing stage 112 in and out of magnetic field M is repeated. Additionally, the size of magnetic field M and regenerator housing 102 are such that a subset of the plurality of stages 112 is within the magnetic field at any given time during rotation. Similarly, a subset of the plurality of stages 112 are outside (or substantially outside) of the magnetic field at any given time during rotation. Additionally, at any given time, there are at least two stages 112 through which the heat transfer fluid is flowing while the other stages remain in a dwell mode. More specifically, while one stage 112 is losing heat through the flow of heat transfer fluid at position 5, another stage 112 is receiving heat from the flowing heat transfer fluid at position 1, while all remaining stages 112 are in dwell mode. As such, the system can be operated continuously to provide a continuous recirculation of heat transfer fluid in heat pump system 52 as stages 112 are each sequentially rotated through positions 1 through 8.
  • each valve could be provided within two inlet ports and two outlet ports so that heat transfer fluid flows through at least four stages 112 at any particular point in time.
  • regenerator housing 102, valves 122 and 124, and/or seals 136 and 138 could be constructed so that e.g., at least two stages are in fluid communication with an inlet port and outlet port at any one time.
  • Other configurations may be used as well.
  • stage 112 includes MCM extending along the axial direction of flow.
  • the MCM may be constructed from a single magneto caloric material or may include multiple different magneto caloric materials.
  • appliance 10 may be used in an application where the ambient temperature changes over a substantial range.
  • a specific magneto caloric material may exhibit the magneto caloric effect over only a much narrower temperature range.
  • each stage 112 can be provided with zones 152, 154, 156, 158, 160, and 162 of different magneto caloric materials.
  • Each such zone includes an MCM that exhibits the magneto caloric effect at a different temperature or a different temperature range than an adjacent zone along the axial direction of stage 112.
  • zone 152 may exhibit the magnet caloric effect at a temperature less than the temperature at which zone 154 exhibits the magnet caloric effect, which may be less than such temperature for zone 156, and so on.
  • Other configurations may be used as well.
  • magnetic element 126 is constructed in the shape of an arc from a plurality of magnets 130 arranged in a Halbach array for this exemplary embodiment. More specifically, magnets 130 are arranged so that magnetic element 126 provides a magnetic field M located radially outward of magnetic element 126 and towards regenerator housing 102 while minimal or no magnetic field is located radially- inward towards the axis of rotation A-A. Magnetic field M may be aligned in a curve or arc shape. A variety of other configurations may be used as well for magnetic element 126 and/or its resulting magnetic field.
  • magnetic element 126 could be constructed from a first plurality of magnets positioned in cavity 128 in a Halbach array that directs the field outwardly while a second plurality of magnetics is positioned radially outward of regenerator housing 102 and arranged to provide a magnetic field that is located radially inward to the regenerator housing 102.
  • magnetic element 128 could be constructed from a plurality of magnets positioned radially outward of regenerator housing 102 and arranged to provide a magnetic field that is located radially inward towards the regenerator housing 102.
  • Other configurations of magnetic element 128 may be provided as well. For example, coils instead of magnets may be used to create the magnetic field desired.
  • the arc created by magnetic element 128 provides a magnetic field extending circumferentially about 180 degrees.
  • the arc created by magnetic element 128 provides a magnetic field extending circumferentially in a range of about 170 degrees to about 190 degrees.
  • a motor 28 is in mechanical communication with regenerator housing 102 and provides for rotation of housing 102 about axis A-A.
  • motor 28 may be connected directly with housing 102 by a shaft or indirectly through a gear box. Other configurations may be used as well.

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  • 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)
  • Hard Magnetic Materials (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

La présente invention concerne un système de pompe à chaleur présentant un matériau magnétocalorique positionné dans un régénérateur en rotation continue (102). Le matériau magnétocalorique est étagé, de sorte que lorsque le régénérateur est mis en rotation, une partie du matériau est mise en cycle dans et hors d'un champ magnétique de manière continue. Un fluide de transfert de chaleur est mis en circulation dans le matériau magnétocalorique simultanément le long d'au moins deux voies (44/48, 50/46) afin d'assurer le transfert de chaleur aussi bien vers que depuis le matériau, de manière cyclique. Le matériau magnétocalorique peut comporter des zones présentant différentes plages de température de réactivité au champ magnétique. La présente invention concerne également un appareil qui utilise un système de pompe à chaleur basé sur le matériau magnétocalorique.
EP13799164.2A 2012-12-19 2013-11-18 Dispositif magnétocalorique à pompe continue Withdrawn EP2936007A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/719,395 US20140165594A1 (en) 2012-12-19 2012-12-19 Magneto caloric device with continuous pump
PCT/US2013/070518 WO2014099199A1 (fr) 2012-12-19 2013-11-18 Dispositif magnétocalorique à pompe continue

Publications (1)

Publication Number Publication Date
EP2936007A1 true EP2936007A1 (fr) 2015-10-28

Family

ID=49684093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13799164.2A Withdrawn EP2936007A1 (fr) 2012-12-19 2013-11-18 Dispositif magnétocalorique à pompe continue

Country Status (7)

Country Link
US (1) US20140165594A1 (fr)
EP (1) EP2936007A1 (fr)
KR (1) KR20150096743A (fr)
CN (1) CN104870911B (fr)
CA (1) CA2893874A1 (fr)
MX (1) MX2015007963A (fr)
WO (1) WO2014099199A1 (fr)

Families Citing this family (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9625185B2 (en) 2013-04-16 2017-04-18 Haier Us Appliance Solutions, Inc. Heat pump with magneto caloric materials and variable magnetic field strength
US9377221B2 (en) * 2013-07-24 2016-06-28 General Electric Company Variable heat pump using magneto caloric materials
WO2015017230A1 (fr) 2013-08-02 2015-02-05 General Electric Company Ensembles magnéto-caloriques
US9851128B2 (en) 2014-04-22 2017-12-26 Haier Us Appliance Solutions, Inc. Magneto caloric heat pump
US9797630B2 (en) 2014-06-17 2017-10-24 Haier Us Appliance Solutions, Inc. Heat pump with restorative operation for magneto caloric material
US10254020B2 (en) 2015-01-22 2019-04-09 Haier Us Appliance Solutions, Inc. Regenerator including magneto caloric material with channels for the flow of heat transfer fluid
US9631843B2 (en) 2015-02-13 2017-04-25 Haier Us Appliance Solutions, Inc. Magnetic device for magneto caloric heat pump regenerator
JP2018533717A (ja) 2015-11-13 2018-11-15 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ 磁気熱量ヒートポンプ、冷却装置及びそれらの操作方法
FR3050517B1 (fr) * 2016-04-20 2018-04-27 Cooltech Applications Procede pour refroidir ou chauffer un fluide dans une enceinte thermique au moyen d'un generateur thermique magnetocalorique et installation thermique mettant en oeuvre ledit procede
US10541070B2 (en) 2016-04-25 2020-01-21 Haier Us Appliance Solutions, Inc. Method for forming a bed of stabilized magneto-caloric material
US10299655B2 (en) * 2016-05-16 2019-05-28 General Electric Company Caloric heat pump dishwasher appliance
US10274231B2 (en) 2016-07-19 2019-04-30 Haier Us Appliance Solutions, Inc. Caloric heat pump system
US10006673B2 (en) 2016-07-19 2018-06-26 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10006672B2 (en) 2016-07-19 2018-06-26 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10006675B2 (en) 2016-07-19 2018-06-26 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10281177B2 (en) 2016-07-19 2019-05-07 Haier Us Appliance Solutions, Inc. Caloric heat pump system
US10006674B2 (en) 2016-07-19 2018-06-26 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10047979B2 (en) 2016-07-19 2018-08-14 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US9869493B1 (en) 2016-07-19 2018-01-16 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10047980B2 (en) 2016-07-19 2018-08-14 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10222101B2 (en) 2016-07-19 2019-03-05 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10295227B2 (en) 2016-07-19 2019-05-21 Haier Us Appliance Solutions, Inc. Caloric heat pump system
US9915448B2 (en) 2016-07-19 2018-03-13 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10443585B2 (en) 2016-08-26 2019-10-15 Haier Us Appliance Solutions, Inc. Pump for a heat pump system
US9857106B1 (en) 2016-10-10 2018-01-02 Haier Us Appliance Solutions, Inc. Heat pump valve assembly
US9857105B1 (en) 2016-10-10 2018-01-02 Haier Us Appliance Solutions, Inc. Heat pump with a compliant seal
US10386096B2 (en) 2016-12-06 2019-08-20 Haier Us Appliance Solutions, Inc. Magnet assembly for a magneto-caloric heat pump
US10288326B2 (en) 2016-12-06 2019-05-14 Haier Us Appliance Solutions, Inc. Conduction heat pump
US10527325B2 (en) 2017-03-28 2020-01-07 Haier Us Appliance Solutions, Inc. Refrigerator appliance
US11009282B2 (en) 2017-03-28 2021-05-18 Haier Us Appliance Solutions, Inc. Refrigerator appliance with a caloric heat pump
US10451320B2 (en) 2017-05-25 2019-10-22 Haier Us Appliance Solutions, Inc. Refrigerator appliance with water condensing features
WO2018232143A1 (fr) * 2017-06-16 2018-12-20 Carrier Corporation Réponse ferroïque par application d'un champ conjugué
US10451322B2 (en) 2017-07-19 2019-10-22 Haier Us Appliance Solutions, Inc. Refrigerator appliance with a caloric heat pump
US10422555B2 (en) 2017-07-19 2019-09-24 Haier Us Appliance Solutions, Inc. Refrigerator appliance with a caloric heat pump
US10520229B2 (en) 2017-11-14 2019-12-31 Haier Us Appliance Solutions, Inc. Caloric heat pump for an appliance
US10823464B2 (en) * 2017-12-12 2020-11-03 Haier Us Appliance Solutions, Inc. Elasto-caloric heat pump system
US11022348B2 (en) * 2017-12-12 2021-06-01 Haier Us Appliance Solutions, Inc. Caloric heat pump for an appliance
CN108413675B (zh) * 2018-02-25 2021-01-05 中科磁凌（北京）科技有限公司 一种基于磁制冷的模块化冰箱
US10782051B2 (en) 2018-04-18 2020-09-22 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly
US10648704B2 (en) 2018-04-18 2020-05-12 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly
US10648705B2 (en) 2018-04-18 2020-05-12 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly
US10551095B2 (en) 2018-04-18 2020-02-04 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly
US10876770B2 (en) 2018-04-18 2020-12-29 Haier Us Appliance Solutions, Inc. Method for operating an elasto-caloric heat pump with variable pre-strain
US10557649B2 (en) 2018-04-18 2020-02-11 Haier Us Appliance Solutions, Inc. Variable temperature magneto-caloric thermal diode assembly
US10648706B2 (en) 2018-04-18 2020-05-12 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly with an axially pinned magneto-caloric cylinder
US10830506B2 (en) 2018-04-18 2020-11-10 Haier Us Appliance Solutions, Inc. Variable speed magneto-caloric thermal diode assembly
US10641539B2 (en) 2018-04-18 2020-05-05 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly
US11054176B2 (en) 2018-05-10 2021-07-06 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly with a modular magnet system
US11015842B2 (en) 2018-05-10 2021-05-25 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly with radial polarity alignment
US10989449B2 (en) 2018-05-10 2021-04-27 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly with radial supports
US11092364B2 (en) 2018-07-17 2021-08-17 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly with a heat transfer fluid circuit
US10684044B2 (en) 2018-07-17 2020-06-16 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly with a rotating heat exchanger
US11193697B2 (en) 2019-01-08 2021-12-07 Haier Us Appliance Solutions, Inc. Fan speed control method for caloric heat pump systems
US11274860B2 (en) 2019-01-08 2022-03-15 Haier Us Appliance Solutions, Inc. Mechano-caloric stage with inner and outer sleeves
US11168926B2 (en) 2019-01-08 2021-11-09 Haier Us Appliance Solutions, Inc. Leveraged mechano-caloric heat pump
US11149994B2 (en) 2019-01-08 2021-10-19 Haier Us Appliance Solutions, Inc. Uneven flow valve for a caloric regenerator
US11112146B2 (en) 2019-02-12 2021-09-07 Haier Us Appliance Solutions, Inc. Heat pump and cascaded caloric regenerator assembly
US11015843B2 (en) 2019-05-29 2021-05-25 Haier Us Appliance Solutions, Inc. Caloric heat pump hydraulic system
CN111380242B (zh) * 2020-03-20 2020-11-13 中国科学院理化技术研究所 减小退磁效应的主动式磁回热器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4549155A (en) * 1982-09-20 1985-10-22 The United States Of America As Represented By The United States Department Of Energy Permanent magnet multipole with adjustable strength
ATE362084T1 (de) * 2000-08-09 2007-06-15 Astronautics Corp Magnetisches kältegerät mit drehbett
JP4921891B2 (ja) * 2006-08-24 2012-04-25 中部電力株式会社 磁気冷凍装置
DK2188577T3 (en) * 2007-08-17 2016-11-28 The Technical Univ Of Denmark Cooling device and cooling process
US8209988B2 (en) * 2008-09-24 2012-07-03 Husssmann Corporation Magnetic refrigeration device
CN101979937B (zh) * 2010-10-15 2012-05-23 西安交通大学 一种旋转式磁制冷装置及其应用
US20130300243A1 (en) * 2012-05-11 2013-11-14 Jacek F. Gieras High power density permanent magnet machine
US10465951B2 (en) * 2013-01-10 2019-11-05 Haier Us Appliance Solutions, Inc. Magneto caloric heat pump with variable magnetization

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2014099199A1 *

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KR20150096743A (ko) 2015-08-25
MX2015007963A (es) 2015-10-08
CA2893874A1 (fr) 2014-06-26
CN104870911A (zh) 2015-08-26
US20140165594A1 (en) 2014-06-19
CN104870911B (zh) 2017-06-30
WO2014099199A1 (fr) 2014-06-26

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