US20170045258A1 - Active Regenerative Heating and Cooling - Google Patents

Active Regenerative Heating and Cooling Download PDF

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Publication number
US20170045258A1
US20170045258A1 US15/305,807 US201415305807A US2017045258A1 US 20170045258 A1 US20170045258 A1 US 20170045258A1 US 201415305807 A US201415305807 A US 201415305807A US 2017045258 A1 US2017045258 A1 US 2017045258A1
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United States
Prior art keywords
fluid
control
regenerator device
regenerator
pump
Prior art date
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Abandoned
Application number
US15/305,807
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English (en)
Inventor
Subramanyaravi Annapragada
Ulf J. Jonsson
Thomas D. Radcliff
Andrzej Ernest Kuczek
John P. Wesson
Neal R. Herring
Stuart S. Ochs
Yinshan Feng
Mikhail B. Gorbounov
Ram Ranjan
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Carrier Corp
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United Technologies Corp
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Assigned to UNITED TECHNOLOGIES CORPORATION reassignment UNITED TECHNOLOGIES CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FENG, YINSHAN, GORBOUNOV, MIKHAIL B., JONSSON, ULF J., Ranjan, Ram, ANNAPRAGADA, SUBRAMANYARAVI, HERRING, NEAL R., KUCZEK, ANDRZEJ ERNEST, OCHS, STUART S., RADCLIFF, THOMAS D., WESSON, JOHN P.
Publication of US20170045258A1 publication Critical patent/US20170045258A1/en
Assigned to RAYTHEON TECHNOLOGIES CORPORATION reassignment RAYTHEON TECHNOLOGIES CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: UNITED TECHNOLOGIES CORPORATION
Assigned to CARRIER CORPORATION reassignment CARRIER CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RAYTHEON TECHNOLOGIES CORPORATION
Abandoned legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • F24F11/0009—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • 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
    • F28D17/00—Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles
    • F28D17/04—Distributing arrangements for the heat-exchange media
    • 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
    • F28D21/0014—Recuperative heat exchangers the heat being recuperated from waste air or from vapors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/1458—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification using regenerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/0001—Control or safety arrangements for ventilation
    • F24F2011/0002—Control or safety arrangements for ventilation for admittance of outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F2012/008—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air cyclic routing supply and exhaust air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/147—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with both heat and humidity transfer between supplied and exhausted air
    • 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
    • F25B2321/001—Details of machines, plants or systems, using electric or magnetic effects by using electro-caloric effects
    • 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]
    • 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]
    • Y02B30/56—Heat recovery units

Definitions

  • Heat pumps based on field-active heating/cooling processes such as the magnetocaloric, electrocaloric, and thermoelastic effect have the potential to replace traditional refrigerant-based heating, ventilation, and air-conditioning (HVAC) systems.
  • An electrocaloric effect-based device in particular may result in a totally solid state device needing no moving pans to deliver a high coefficient of performance (COP) and capacity. Because the stated effects provide relatively small temperature lifts, regeneration in the form of a regenerative heat exchanger may be applied to increase lift to levels needed for environmental control.
  • a field-active material heats up and cools down almost reversibly as an applied field is cycled.
  • the alternately created heating or cooling in the material needs to be transferred to either the indoor or outdoor space in a synchronous fashion based on whether cooling or heating in the space is required.
  • One means of performing this thermal switching function is to translate the working fluid into and out of the active element. The fluid is translated completely through the unit if the temperature lift is adequate for the application, while it is translated only partially through the unit if regeneration is needed to increase the lift. In this case the moving air serves the function of regenerative heat storage.
  • the active device whether subject to compete or partial fluid translation, is referred to herein as a regenerator.
  • This invention describes means to control the motion of the working fluid in a regenerator in a synchronous manner.
  • An embodiment is directed to a method comprising: obtaining a specification comprising at least one requirement associated with a heating, ventilation, and air-conditioning (HVAC) system, and based on the specification, configuring a control system to control a movement of fluid back and forth across at least one regenerator device of the HVAC system and a mixing of the fluid with ambient air.
  • HVAC heating, ventilation, and air-conditioning
  • An embodiment is directed to a system comprising: a heating, ventilation, and air-conditioning (HVAC) system comprising at least one regenerator device, and a control system configured to control a movement of fluid back and forth across the at least one regenerator device and a mixing of the fluid with ambient air.
  • HVAC heating, ventilation, and air-conditioning
  • FIG. 1 is a diagram of an exemplary ejector based linear system
  • FIG, 2 is a diagram of an exemplary rotary pressure pulsing system
  • FIG. 3 is a diagram of the sequential stages of operation of an exemplary system comprising two field-active regenerator modules
  • FIG. 4 is a diagram of an exemplary system comprising a field-active regenerator module and pumps;
  • FIG. 5 illustrates a flow chart of an exemplary method
  • FIG. 6 illustrates an exemplary computing system.
  • Exemplary embodiments of apparatuses, systems, and methods are described for controlling a movement of heat transfer fluid across one or more regenerators and a mixing of this fluid with ambient air.
  • the heat transfer fluid may be hot and cold ambient air.
  • the heat transfer fluid in intimate contact with the regenerator may be isolated from mixing, with the ambient air by an intermediate heat exchanger.
  • synchronous alternate pressure oscillations on cold and hot sides of a regenerator may be provided.
  • the pressure on the cold and hot side may be synchronized so that the fluid is pushed indoors during the cooling part of the regeneration cycle and fluid is pushed outdoors during the heating part of the regeneration cycle. This process is reversed to provide heating.
  • the pressure oscillations may be achieved through a linear actuator or a rotary fan design.
  • an ejector based linear system 100 operating in a cooling mode is shown.
  • the system 100 achieves cooling by closing a valve 102 on the cold side (e.g., the indoors) to raise the pressure and push a flow of fluid from an inlet 104 into a heat pump device 110 , such as an electrocaloric heat pump (ECHP) device.
  • a valve 118 is opened at the same time on the hot side (e.g., the outdoors).
  • the valve 102 is opened and the valve 118 is closed, which sucks the fluid from an inlet 120 and the device 110 back into the cold side, acting like an ejector.
  • the mechanism enhances mixing of the hot or cold fluid from the regenerator with the ambient air, ensuring that hot or cold fluid from the regenerator is not simply sucked back into the regenerator without mixing
  • the pressure oscillations may be synchronized at specific phase shifts with the field being applied to the active material 110 to gain the best performance, and that phase shift may change for different capacities and lifts. Also, the duration and/or shape of the pressure oscillation may be regulated to provide the correct volume flow of fluid through the system 100 .
  • the system 100 may operate on the basis of pressure generated by a running (e.g., a continuous running) of one or more fans.
  • the pressure may be controlled by the state (e.g., the degree of how open or closed) of the valves 102 and 118 .
  • the design of the valves 102 and 118 may be made as simple as possible in order to reduce cost.
  • the system 200 may have two rotating turbine fans 206 and 214 , one either side of a regenerator 120 .
  • the regenerator 120 may correspond to the device 110 in some embodiments.
  • the vanes of the cold side (e.g., indoor) and hot side (e.g., outdoor) turbine fans 206 and 214 may be out of phase with respect to one another and push and pull fluid into the regenerator 220 alternatively.
  • the vanes may be synchronized with a voltage signal.
  • the shapes of the vanes may be designed so that when the regenerator 220 is heating, the cold side vane may act as a compressor of fluid and the hot side vane may act as an expander which may result in the heated fluid being pushed out on to the hot side, as reflected via the dashed box 252 .
  • the hot side vane when the regenerator 220 is in cooling mode, the hot side vane may act as a compressor and the cold side vane may act as an expander pushing cold fluid to the cooled side, as reflected via the dashed box 260 .
  • the vanes of the fans 206 and 214 may be used to create localized pressure or pressure differential in proximity to the vanes or fans.
  • the speed, phase, and position of the fans, vanes, or blades may be controlled (e.g., time-controlled) to obtain an appropriate movement of fluid back and forth and mixing with ambient air.
  • the system 300 may include two regeneration devices or waits 304 and 312 with continuous hot and cold fluid streams which are switched alternately between the two units 304 and 312 to provide continuous space heating/cooling.
  • the unit 304 and/or the unit 312 may correspond to one or more of the device 110 and the device 220 .
  • An indoor space cooling cycle is referenced in FIG. 3 , but by simply shifting the phase by 180 degrees, the system 300 can be used for indoor space heating.
  • the system 300 when used for cooling may include two modes as described in further detail below.
  • a hot ambient fluid stream 320 from the outdoors may be diverted into the unit 312 which may be going through a cooling part of a regenerative cycle.
  • the fluid cooled below indoor ambient in the unit 312 may be pushed indoors and the new hot outdoor fluid stream 320 may enter the unit 312 .
  • a cold ambient fluid stream 328 may be diverted into the unit 304 which may be going through a heating part of a regenerative cycle.
  • the heated fluid above outdoor temperature in the unit 304 may be purged outdoors as the new indoor fluid stream 328 is brought into the unit 304 .
  • the flow streams 320 and 328 may be flipped between the units 304 and 312 relative to the first mode.
  • the hot ambient fluid stream 320 from outdoors may be diverted from the unit 312 to the unit 304 , which may now be going through a cooling part of the regenerative cycle.
  • the fluid cooled below indoor ambient in the unit 304 may be pushed indoors and new hot outdoor fluid stream 320 may enter the unit 304 .
  • the cold ambient fluid stream 328 may be diverted into the unit 312 , which may be going through a heating part of the regenerative cycle.
  • the heated fluid above outdoor temperature in the unit 312 may be purged outdoors as the indoor fluid stream 328 is brought into unit 312 .
  • the system 300 of FIG. 3 depicts the use of two regenerator devices 304 and 312 that are (substantially) one-hundred eighty degrees out of phase with respect to one another regarding the oriented direction of movement of fluid across or through the devices 304 and 312 .
  • a departure from one-hundred eighty degrees may represent a loss in efficiency.
  • any number of regenerator devices may be used in a given embodiment.
  • the number of regenerator devices used may be a function of the heating or cooling capacity that may be needed in a given application environment.
  • a combination of the two additional devices 304 and 312 may operate ninety degrees out of phase with respect to the combination of devices 304 and 312 .
  • a positive displacement may be used along with checks and vents to provide regeneration by synchronized alternate pumping of fluid.
  • pumping mechanisms and checks may include pistons/electro-magnetically driven membranes and flapper/poppet valves, respectively.
  • the system 400 may include a regenerative device or unit 410 .
  • the device 410 may correspond to one or more of the device 304 , the device 312 , the device 220 , and the device 110 .
  • the system 400 may include any number or type of pumps, such as linear pumps, piston pumps, etc.
  • a first pump 404 a may be associated with an indoor space or environment and a second pump 404 b may be associated with an outdoor space or environment.
  • the pumps 404 a and 404 b may be operated in a discontinuous fashion or manner and may be used to control a flow of fluid over time.
  • Each of the pumps 404 a and 404 b may include a check (shown at the bottom of the pumps in FIG. 4 ) that may selectively open or close a respective fluid inlet for the pump.
  • Each of the pumps 404 a and 404 b may include a vent (shown at the top of the pumps in FIG. 4 ) that may selectively open or close a respective fluid outlet for the pump.
  • the state of the checks and vents associated with each of the pumps 404 a and 404 b may be controlled in order to provide a controlled flow of fluid over time.
  • the system 400 may be configured to providing heating or cooling for the indoor space.
  • the exemplary sequence of operations # 1 - 4 denoted in FIG. 4 are described below for purposes of cooling the indoor space.
  • One skilled in the art would appreciate, based on this disclosure, that a similar sequence of operations could be constructed for purposes of heating the indoor space.
  • the regenerative elements or device 410 may be going through a heating cycle.
  • the cold/indoor side fluid may be pushed by the pump 404 a towards the device 410 , which may push out the fluid on the hot/outdoor side through the unlatched vent associated with the pump 404 b.
  • the vent and check associated with the pump 404 a may be latched and closed, respectively.
  • the check associated with the pump 404 b may be closed.
  • the cold/indoor side fluid pump 404 a may be turned-off, disengaged, or withdrawn.
  • the check associated with the pump 404 a may be opened to bring in cold ambient fluid.
  • the vent associated with the pump 404 a may be latched.
  • the vent associated with the pump 404 b may be latched.
  • the check associated with the pump 404 b may be open or slightly open.
  • a (pressure) differential may be established across the device 410 based on the two checks being open in operation # 2 .
  • the regenerative elements or device 410 may be going through a cooling cycle.
  • the hot/outdoor side fluid may be pushed by the pump 404 b towards the device 410 , which may push out the fluid on the cold/indoor side through the unlatched vent associated with the pump 404 a.
  • the vent and check associated with the pump 404 b may be latched and closed, respectively.
  • the check associated with the pump 404 a may be closed.
  • the hot/outdoor side fluid pump 404 b may be turned-off, disengaged, or withdrawn.
  • the check associated with the pump 404 b may be opened to bring in hot ambient fluid.
  • the vent associated with the pump 404 a may be latched.
  • the vent associated with the pump 404 b may be latched.
  • the check associated with the pump 404 a may be open or slightly open. A (pressure) differential may be established across the device 410 based on the two checks being open in operation # 4 .
  • the check associated with the pump 404 b was described above as being open or slightly open.
  • the check associated with the pump 404 a was described above as being open or slightly open.
  • the states of the referenced checks under such circumstances may be based on a passive control of the checks.
  • the check associated with the pump 404 b may be closed in operation 42 and the check associated with the pump 404 a may be closed in operation # 4 in order to enhance the performance or efficiency of the system.
  • an active control system may be used, potentially at greater cost relative to the use of passive controls. Thus, a trade-off may be made between performance/efficiency and cost in a given application.
  • the method 500 may be used in connection with one or more systems, components, or devices, such as those described herein.
  • the method 500 may be used to provide heating or cooling to an environment, such as an indoor environment.
  • a specification may be obtained.
  • the specification may include one or more requirements associated with an environment.
  • the specification may include parameters related to capacity, load, or temperature lift that a heating, ventilation, and air-conditioning (HVAC) system may be required to provide.
  • HVAC heating, ventilation, and air-conditioning
  • a control system may be designed or configured, potentially based on the specification or requirements of block 502 .
  • the control system may be configured to control a movement of fluid flow in one or more regenerator devices and a mixing of the fluid flow with ambient air.
  • the HVAC. and/or control systems may be deployed. As part of block 506 , the systems may be turned-on or enabled for use.
  • performance of the system(s) of block 506 may be monitored.
  • one or more parameters may be modified or adjusted.
  • a parameter may be modified or adjusted to improve the efficiency of a system.
  • a parameter may be modified to provide for a different climate (e.g., a hotter indoor temperature), potentially based on or in response to a user input.
  • the method 500 is illustrative. In some embodiments, one or more of the blocks or operations (or a portion thereof) may be optional, in some embodiments, one or more blocks or operations not shown may be included. In some embodiments, the blocks or operations may execute in an order or sequence that is different from what is shown,
  • FIG. 6 illustrates a computing system 600 in accordance with one or more embodiments.
  • the computing system 600 may be used as a control system, such as a control system to control an HVAC system.
  • the system 600 may include one or more processors 602 and memory 604 .
  • the memory 604 may store executable instructions, The executable instructions may be stored or organized in any manner and at any level of abstraction, such as in connection with one or more applications, processes, routines, procedures, methods, etc.
  • the instructions when executed by the one or more processors 602 , may cause the system 600 to perform one or more methodological acts, such as those described herein.
  • the system 600 may include logic devices, such as programmable logic devices (PLDs), field programmable gate arrays (FPGAs), etc. not shown in FIG. 6 ).
  • logic devices such as programmable logic devices (PLDs), field programmable gate arrays (FPGAs), etc. not shown in FIG. 6 ).
  • the system 600 may include one or more input/output (I/O) devices 606 .
  • the I/O device(s) 606 may include one or more of a keyboard or keypad, a touchscreen or touch panel, a display screen, a microphone, a speaker, a mouse, a button, a remote control, a joystick, a printer, a telephone or mobile device (e.g., a smartphone), a sensor, etc.
  • the I/O device(s) 606 may be configured to provide an interface to allow a user to interact with the system 600 .
  • the I/O device(s) 606 may support a graphical user interface (GUI) and/or voice-to-text capabilities.
  • GUI graphical user interface
  • Embodiments of the disclosure may be used to achieve an oscillatory flow and bulk flow mixing in a compact manner.
  • Embodiments may utilize any working fluid, such as air, in direct contact with the active material which improves simplicity and efficiency, or may isolate the heat transfer media contacting the active material from the ambient air using an intermediate heat exchanger. in some embodiments, zonal personalized space heating/cooling may be provided.
  • Embodiments of the disclosure may have few linear mechanical displacement parts, thereby improving the reliability and availability of a given system.
  • Embodiments of the disclosure may be used in active regenerative heating/cooling systems, such as electrocaloric and magnetocaloric thermal generators. Fluid handling described herein may also be applied to, e.g., power generation using active regenerative systems. Such techniques may be used for waste heat recovery and primary power generation.
  • various functions or acts may take place at a given location arid/or in connection with the operation of one or more apparatuses, systems, or devices.
  • a portion of a given function or act may be performed at a first device or location, and the remainder of the function or act may be performed at one or more additional devices or locations.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Central Air Conditioning (AREA)
US15/305,807 2014-04-21 2014-04-21 Active Regenerative Heating and Cooling Abandoned US20170045258A1 (en)

Applications Claiming Priority (1)

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PCT/US2014/034753 WO2015163839A1 (en) 2014-04-21 2014-04-21 Active regenerative heating and cooling

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EP (1) EP3134686B8 (es)
JP (1) JP2017516053A (es)
CN (1) CN106233081A (es)
CA (1) CA2946278C (es)
ES (1) ES2853448T3 (es)
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WO2020106718A1 (en) 2018-11-19 2020-05-28 Carrier Corporation Electrocaloric heat transfer system and a method of operating the same
US11187441B2 (en) 2019-10-10 2021-11-30 Palo Alto Research Center Incorporated Control system for an electrocaloric device
US11454415B2 (en) * 2017-11-23 2022-09-27 Carrier Corporation Hybrid electrocaloric heat pump system
US12135150B2 (en) 2018-11-09 2024-11-05 Carrier Corporation Electrocaloric heat transfer articles and systems

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DE102015121657A1 (de) * 2015-12-11 2017-06-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Vorrichtung zum Betrieb kreisprozessbasierter Systeme
BE1023751B1 (nl) * 2016-01-11 2017-07-11 Renson Ventilation Nv Ventilatie-inrichting
US10890361B2 (en) 2016-06-08 2021-01-12 Carrier Corporation Electrocaloric heat transfer system
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CA2946278C (en) 2022-06-21
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CA2946278A1 (en) 2015-10-29
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