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    Electrocaloric heat transfer articles and systems
    1.
    发明授权
    Electrocaloric heat transfer articles and systems 有权

    公开(公告)号：US12135150B2

    公开(公告)日：2024-11-05

    申请号：US17059836

    申请日：2019-11-08

    Applicant: Carrier Corporation

    Inventor： Subramanyaravi Annapragada ,  Aritra Sur ,  Craig R. Walker ,  Parmesh Verma ,  Hayden M. Reeve

    IPC: F25B21/00

    Abstract: A heat transfer system includes first (62) and second (64) electrocaloric module with aligned first and second sides. First and second prime movers (80,82) are arranged to direct a working fluid in opposite directions along flow paths through the electrocaloric modules. A rotary fluid control device (92,98) including a plurality of openings (94,96,100,102) is disposed around the electrocaloric modules, and is configured to rotate between positions relative to the modules. In a first position, the first module is in operative fluid communication through the openings with the first prime mover, and the second module is in operative fluid communication through the openings with the second prime mover. In a second position, the first module is in operative fluid communication through the openings with the second prime mover, and the second module is in operative fluid communication through the openings with the first prime mover.

    ELECTROCALORIC HEAT TRANSFER METHOD
    3.
    发明申请
    ELECTROCALORIC HEAT TRANSFER METHOD 审中-公开

    公开(公告)号：US20190242625A1

    公开(公告)日：2019-08-08

    申请号：US16389667

    申请日：2019-04-19

    Applicant: CARRIER CORPORATION

    Inventor： Subramanyaravi Annapragada ,  Andrzej Ernest Kuczek ,  Thomas D. Radcliff ,  Charles E. Lents ,  Joseph V. Mantese ,  Scott Alan Eastman ,  Parmesh Verma ,  Wei Xie

    IPC: F25B21/00

    CPC classification number: F25B21/00 ,  F25B2321/001 ,  Y02B30/66

    Abstract: A heat transfer system cycles between a first mode where a heat transfer fluid is directed to a first electrocaloric module and from the first electrocaloric module to a heat exchanger to a second electrocaloric module while one of the first and second electrocaloric modules is energized, and a second mode where the heat transfer fluid is directed to the second electrocaloric module and from the second electrocaloric module to the heat exchanger to the first electrocaloric module, while the other of the first and second electrocaloric modules is energized. The modes are repeatedly cycled in alternating order directing the heat transfer fluid to cause a temperature gradient in each of the first and second electrocaloric modules, and heat is rejected to the fluid from the heat exchanger or is absorbed by the heat exchanger from the fluid.

    ROOFTOP AIR CONDITIONING UNIT
    4.
    发明申请
    ROOFTOP AIR CONDITIONING UNIT 有权

    公开(公告)号：US20240426525A1

    公开(公告)日：2024-12-26

    申请号：US18746118

    申请日：2024-06-18

    Applicant: Carrier Corporation

    Inventor： Johannes Kohler Mendizabal ,  Subramanyaravi Annapragada ,  Aritra Sur ,  Richard Lord ,  Andrew Lowenstein

    IPC: F25B25/02 ,  F25B37/00 ,  F25B49/00

    Abstract: A rooftop air conditioning unit (RTU) is disclosed. The RTU comprises an absorber configured in a supply airstream, and a desorber configured in a regeneration airstream, wherein the desorber is fluidically connected to the absorber via a liquid desiccant system. The RTU further comprises a first heat exchanger configured upstream of the absorber in the supply airstream, a second heat exchanger configured upstream of the desorber in the regeneration airstream, and a third heat exchanger configured downstream of the absorber in the supply airstream, wherein the first heat exchanger and the third heat exchanger are fluidically connected to the second heat exchanger via a vapor compression system.

    METHOD OF ASSEMBLING AN ELECTROCALORIC ARTICLE AND ELECTROCALORIC HEAT TRANSFER SYSTEM
    5.
    发明申请
    METHOD OF ASSEMBLING AN ELECTROCALORIC ARTICLE AND ELECTROCALORIC HEAT TRANSFER SYSTEM 有权

    公开(公告)号：US20210308733A1

    公开(公告)日：2021-10-07

    申请号：US17058264

    申请日：2019-08-23

    Applicant: CARRIER CORPORATION

    Inventor： Subramanyaravi Annapragada ,  Scott Alan Eastman ,  Joseph V. Mantese ,  Wei Xie ,  Wayde R. Schmidt ,  Craig R. Walker ,  Sameh Dardona ,  Slade R. Culp

    IPC: B21D5/01 ,  F25B21/00 ,  B23P15/26

    Abstract: A method of making an electrocaloric article is disclosed in which a continuous sheet of an electrocaloric film is bent back and forth to form a plurality of connected aligned segments of electrocaloric film with gaps between film surfaces of adjacent aligned segments. The continuous sheet of electrocaloric film is secured in this with a securing method that includes attaching a spacer to the continuous sheet of electrocaloric film prior to the back and forth bending; or providing a spacer comprising a base and a plurality of projections extending from the base, and inserting the projections into the gaps between the film surfaces of adjacent aligned segments after the back and forth bending; or interweaving a continuous spacer through the gaps between the aligned segments of the electrocaloric film; or attaching an end cap to a plurality of connecting portions of the electrocaloric film between the aligned segments.

    REFRIGERATION CIRCUIT WITH THERMAL STORAGE
    7.
    发明公开
    REFRIGERATION CIRCUIT WITH THERMAL STORAGE 审中-公开

    公开(公告)号：US20240200841A1

    公开(公告)日：2024-06-20

    申请号：US18538472

    申请日：2023-12-13

    Applicant: Carrier Corporation

    Inventor： Sascha Hellmann ,  Subramanyaravi Annapragada ,  Rebecca Shen

    IPC: F25B49/02

    CPC classification number: F25B49/02 ,  F25B2400/24 ,  F25B2700/15

    Abstract: A refrigeration circuit with thermal storage is disclosed. The circuit refrigeration comprises a gas-cooler comprising an inlet, and an outlet, and a compressor unit comprising one or more compressors. The outlet of the compressor unit is fluidically connected to the inlet of the gas-cooler. The refrigeration circuit comprises evaporators comprising an inlet, and an outlet, where the outlet of the evaporators is fluidically coupled to the inlet of the compressor unit. The refrigeration circuit comprises a flash tank fluidically connected between the gas-cooler and the compressor unit, and the evaporators and the compressor unit. Further, the circuit refrigeration comprises a thermal battery fluidically coupled to the gas-cooler, the flash tank, the compressor unit, and the evaporators. The thermal battery is used as a heat source and a heat sink based on the energy pricing of an electric grid to optimize the operation of the gas-cooler, evaporators, and the compressors.

    Electrocaloric heat transfer method
    8.
    发明授权
    Electrocaloric heat transfer method 有权

    公开(公告)号：US11320177B2

    公开(公告)日：2022-05-03

    申请号：US16389667

    申请日：2019-04-19

    Applicant: CARRIER CORPORATION

    Inventor： Subramanyaravi Annapragada ,  Andrzej Ernest Kuczek ,  Thomas D. Radcliff ,  Charles E. Lents ,  Joseph V. Mantese ,  Scott Alan Eastman ,  Parmesh Verma ,  Wei Xie

    IPC: F25B21/00

    Abstract: A heat transfer system cycles between a first mode where a heat transfer fluid is directed to a first electrocaloric module and from the first electrocaloric module to a heat exchanger to a second electrocaloric module while one of the first and second electrocaloric modules is energized, and a second mode where the heat transfer fluid is directed to the second electrocaloric module and from the second electrocaloric module to the heat exchanger to the first electrocaloric module, while the other of the first and second electrocaloric modules is energized. The modes are repeatedly cycled in alternating order directing the heat transfer fluid to cause a temperature gradient in each of the first and second electrocaloric modules, and heat is rejected to the fluid from the heat exchanger or is absorbed by the heat exchanger from the fluid.

    ELECTROCALORIC HEAT TRANSFER ARTICLES AND SYSTEMS
    9.
    发明申请
    ELECTROCALORIC HEAT TRANSFER ARTICLES AND SYSTEMS 有权

    公开(公告)号：US20210199352A1

    公开(公告)日：2021-07-01

    申请号：US17058487

    申请日：2019-08-21

    Applicant: Carrier Corporation

    Inventor： Wei Xie ,  Joseph V. Mantese ,  Scott Alan Eastman ,  Subramanyaravi Annapragada ,  William A. Rioux ,  Parmesh Verma

    IPC: F25B21/00

    Abstract: A heat transfer system is disclosed that includes a plurality of supported electrocaloric film segments (46) arranged in a stack and connected to a frame (10). A working fluid flow path (44) extends through the stack, disposed between adjacent electrocaloric film segments. The working fluid flow path is in operative thermal communication with a heat sink and a heat source at opposite ends of the working fluid flow path. A plurality of electrodes are arranged to generate an electric field in the electrocaloric film segments, and are connected to a power source configured to selectively apply voltage to activate the electrodes in coordination with fluid flow along the working fluid flow path to transfer heat from the heat source to the heat sink. The heat transfer system further includes a film stress management mechanism.

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