REFRIGERANT RECOVERY AND REPURPOSING
    31.
    发明申请

    公开(公告)号:US20190003755A1

    公开(公告)日:2019-01-03

    申请号:US15750732

    申请日:2016-08-11

    Abstract: Methods, systems and apparatuses are described that are directed to on-site recovery and/or repurposing of refrigerant, where an original refrigerant is converted into a refrigerant different from the original refrigerant. The refrigerant different from the original refrigerant can have relatively lower global warming potential (GWP) than the original refrigerant. The recovery and/or repurposing can be implemented for example in a refrigeration circuit, such as for example in general cooling and/or heating applications, which may be embodied in a heating, venting, and air conditioning (HVAC) system and/or unit, in a transport refrigeration system and/or unit, as well as in commercial, residential and/or industrial cooling and/or heating applications.

    Refrigerant compositions
    32.
    发明授权
    Refrigerant compositions 有权
    制冷剂组合物

    公开(公告)号:US09556372B2

    公开(公告)日:2017-01-31

    申请号:US14938520

    申请日:2015-11-11

    Abstract: Refrigerant compositions are described, which can be used for example, in refrigeration, air conditioning, and/or heat pump systems which for example, can be incorporated into a heating, ventilation and air conditioning (HVAC) system or unit. The refrigerant composition includes an amount of a R125 refrigerant, an amount of a R32 refrigerant, and an amount of a R1234yf refrigerant, where the R32 refrigerant has higher flammability than the R125 refrigerant, and the R1234yf refrigerant has higher flammability than the R125 refrigerant.

    Abstract translation: 描述了可用于例如制冷,空调和/或热泵系统中的制冷剂组合物,其例如可以结合到加热,通风和空调(HVAC)系统或单元中。 制冷剂组成包括R125制冷剂的量,R32制冷剂的量和R1234yf制冷剂的量,其中R32制冷剂具有比R125制冷剂更高的可燃性,并且R1234yf制冷剂具有比R125制冷剂更高的可燃性。

    Heat transfer circuit with targeted additive supply

    公开(公告)号:US11421924B2

    公开(公告)日:2022-08-23

    申请号:US16527909

    申请日:2019-07-31

    Abstract: A heat transfer circuit that includes a main flow path for a working fluid that extends through a compressor, a condenser, an expander, and an evaporator. The working fluid includes CF3I. The heat transfer circuit also includes an additive stream configured to supply additive for the CF3I to the working fluid in the main flow path based on a discharge temperature of the compressor. A method for operating a heat transfer circuit that includes directing a working fluid including CF3I through a main flow path of the heat transfer circuit. The method also includes changing a concentration of additive for the CF3I based on a discharge temperature of the working fluid from the compressor.

    LOWER GWP REFRIGERANT COMPOSITIONS
    34.
    发明申请

    公开(公告)号:US20220127508A1

    公开(公告)日:2022-04-28

    申请号:US17572277

    申请日:2022-01-10

    Abstract: Refrigerant compositions for an HVACR system that includes R1123, R32 and at least one more refrigerant. The refrigerant composition has a reduced GWP of about or less than 1500. Some of the refrigerant composition may be suitable for replacing R410A, R32, and/or R22. Methods for making the refrigerant composition including mixing an amount of R1123, and amount of R32, and an amount of at least one more refrigerant. Methods of retrofitting an existing refrigerant composition include adding an amount of at least one refrigerant to an existing refrigerant composition to produce a retrofitted refrigerant composition. The retrofitted refrigerant composition includes at least R1123 and R32.

    Refrigerant leak detection by use of fluid additive

    公开(公告)号:US11118822B2

    公开(公告)日:2021-09-14

    申请号:US16673061

    申请日:2019-11-04

    Inventor: Stephen A. Kujak

    Abstract: A detection system and method of detection directed towards the detection of refrigerant leaking from a refrigerant circuit in a heating, ventilation, air condition, and refrigeration (HVACR) system. The system including a refrigerant circuit utilizes a mixture of working fluid and an additive. The system also includes a detection device that can detect the additive when external to the refrigerant circuit. A method of detecting leaking refrigerant includes adding a detectable fluid to a refrigerant circuit.

    Lower GWP refrigerant compositions
    36.
    发明授权

    公开(公告)号:US11015100B2

    公开(公告)日:2021-05-25

    申请号:US15858896

    申请日:2017-12-29

    Abstract: A non-flammable refrigerant composition for a HVACR system that includes R134a refrigerant, a hydrofluorocarbon refrigerant that has a global warming potential (GWP) of less than 150 or a hydrofluoroolefin refrigerant, and CF3I. A method of making a refrigerant composition for a HVACR system that includes selecting an amount of a first refrigerant that is a hydrofluorocarbon refrigerant or a hydrofluoroolefin refrigerant, selecting an amount of CF3I, and selecting an amount of R134a refrigerant. A method of retrofitting a refrigerant composition in an HVACR system that includes adding one or more compounds to the refrigerant composition. The retrofitted composition including R134a refrigerant, a hydrofluorocarbon refrigerant having a GWP of less than 150, and CF3I, or R134a refrigerant, a hydrofluoroolefin refrigerant, and CF3I.

    LOWER GWP REFRIGERANT COMPOSITIONS
    37.
    发明申请

    公开(公告)号:US20200291282A1

    公开(公告)日:2020-09-17

    申请号:US16891900

    申请日:2020-06-03

    Abstract: Refrigerant compositions for an HVACR system that includes R1123, R32 and at least one more refrigerant. The refrigerant composition has a reduced GWP of about or less than 1500. Some of the refrigerant composition may be suitable for replacing R410A, R32, and/or R22. Methods for making the refrigerant composition including mixing an amount of R1123, and amount of R32, and an amount of at least one more refrigerant. Methods of retrofitting an existing refrigerant composition include adding an amount of at least one refrigerant to an existing refrigerant composition to produce a retrofitted refrigerant composition. The retrofitted refrigerant composition includes at least R1123 and R32.

    Lower GWP refrigerant compositions
    38.
    发明授权

    公开(公告)号:US10655039B2

    公开(公告)日:2020-05-19

    申请号:US15859159

    申请日:2017-12-29

    Abstract: A refrigerant composition for an HVACR system that includes R1123 refrigerant, R32 refrigerant, and CF3I. The refrigerant composition having a capacity greater than 85% of a capacity of R410 or a capacity of R32. A method of making a refrigerant composition for a HVACR system is also disclosed. The method includes mixing an amount of R1123, an amount of R32, and an amount of CF3I. A method of retrofitting a refrigerant composition that results in the refrigerant composition is disclosed.

    Low global warming potential refrigerants in liquid chillers

    公开(公告)号:US10407602B2

    公开(公告)日:2019-09-10

    申请号:US15827902

    申请日:2017-11-30

    Abstract: A refrigeration system is disclosed. The system includes a compressor, a condenser, an expansion device, and an evaporator fluidly connected to form a refrigeration circuit. A refrigerant composition including an environmentally-suitable chiller refrigerant that has a 100 year direct global warming potential (GWP) of less than 150 is included. The refrigerant composition includes a mixture including R-1336mzz-(Z) and R-1130-(E), wherein an amount of R-1336mzz-(Z) in the mixture is in a range from at or about 69% by weight to at or about 81% by weight, and an amount of R-1130-(E) in the mixture is in a range from at or about 31% by weight to at or about 19% by weight.

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