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    HEAT TRANSFER COMPOSITIONS, METHODS, AND SYSTEMS
    7.
    发明申请
    HEAT TRANSFER COMPOSITIONS, METHODS, AND SYSTEMS 有权

    公开(公告)号：US20220243106A1

    公开(公告)日：2022-08-04

    申请号：US17591375

    申请日：2022-02-02

    Applicant: HONEYWELL INTERNATIONAL INC.

    Inventor： Ankit Sethi ,  Kaimi Gao ,  Samuel Yana Motta

    IPC: C09K5/04

    Abstract: The present invention relates to a refrigerant composition comprising at least about 98.5% by weight of the following three compounds, with each compound being present in the following relative percentages: 16.5% to 21.5% by weight difluoromethane (HFC-32); 68.5% to 80.5% by weight of 2,3,3,3-tetrafluoropropene (HFO-1234yf); and 3.0% to 10.0% by weight fluoroethane (HFC-161), and to the use of the refrigerant in a heat exchange system, including air conditioning, refrigeration applications and heat pump applications and to the use of such compositions as a replacement of the refrigerant R-410A or R1234yf for heating and cooling applications.

    MULTI-STAGE LOW GWP AIR CONDITIONING SYSTEM
    10.
    发明申请
    MULTI-STAGE LOW GWP AIR CONDITIONING SYSTEM 审中-公开

    公开(公告)号：US20170191705A1

    公开(公告)日：2017-07-06

    申请号：US15434400

    申请日：2017-02-16

    Applicant: HONEYWELL INTERNATIONAL INC.

    Inventor： Ankit Sethi ,  Samuel F. Yana Motta ,  Elizabet del Carmen Vera Becerra

    IPC: F25B7/00 ,  F25B41/00 ,  F25B41/04 ,  F25B13/00

    CPC classification number: F25B7/00 ,  F25B13/00 ,  F25B40/00 ,  F25B41/003 ,  F25B41/043 ,  F25B2313/02742 ,  F25B2313/0292 ,  F25B2341/0662 ,  F25B2400/121 ,  F25B2400/13 ,  F25B2400/23 ,  F25B2500/222

    Abstract: Disclosed are refrigerant systems for conditioning air and/or items located within a dwelling occupied by humans or other animals preferably including at least a first heat transfer circuit containing a first heat transfer fluid in a vapor/compression circulation loop located substantially outside of the dwelling and at least a second heat transfer circuit, which contains a second heat transfer fluid different than the first heat transfer fluid, located substantially inside of the dwelling. In preferred embodiments, the second heat transfer circuit does not include a vapor compressor, but the system includes at least one intermediate heat exchanger which permits exchange of heat between the first heat transfer fluid and the second heat transfer fluid such that heat is transferred to the first heat transfer fluid, preferably thereby evaporating the first heat transfer fluid, and from the second heat transfer fluid, thereby condensing the second heat transfer fluid. Preferably, the intermediate heat exchanger is located outside the dwelling. The first heat transfer fluid comprises a refrigerant which has a GWP of not greater than about 500 and that the second heat transfer fluid comprises a refrigerant that also has a GWP of less than 500 and which has a low flammability and a low toxicity, and even more preferably a flammability that is substantially less than the flammability of the refrigerant in the first heat transfer fluid and/or a toxicity that is substantially less than the toxicity of the refrigerant in said first heat transfer fluid.

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