Working fluid for heat cycle, composition for heat cycle system and heat cycle system

Abstract

A working fluid for a heat cycle, contains: trifluoroethylene; and a first component consisting of at least one of substance selected from carbon dioxide, fluoromethane, trifluoroiodomethane, methane, ethane, propane, helium, neon, argon, krypton, xenon, nitrogen and ammonia.

What is claimed is: 
     
         1 . A working fluid for a heat cycle, comprising:
 trifluoroethylene; and   a first component consisting of at least one of substance selected from carbon dioxide, fluoromethane, trifluoroiodomethane, methane, ethane, propane, helium, neon, argon, krypton, xenon, nitrogen and ammonia.   
     
     
         2 . The working fluid for the heat cycle according to  claim 1 ,
 wherein the first component is consisting of at least one of substance selected from carbon dioxide, fluoromethane, trifluoroiodomethane and propane.   
     
     
         3 . The working fluid for the heat cycle according to  claim 1 ,
 wherein carbon dioxide is contained as the first component.   
     
     
         4 . The working fluid for the heat cycle according to  claim 1 ,
 wherein fluoromethane is contained as the first component.   
     
     
         5 . The working fluid for the heat cycle according to  claim 1 ,
 wherein trifluoroiodomethane is contained as the first component.   
     
     
         6 . The working fluid for the heat cycle according to  claim 1 ,
 wherein propane is contained as the first component.   
     
     
         7 . The working fluid for the heat cycle according to  claim 1 ,
 wherein a ratio of a total amount of the trifluoroethylene and the first component with respect to an entire amount of the working fluid for the heat cycle is over 90 mass % and 100 mass % or less, and   wherein a ratio of an amount of the trifluoroethylene with respect to the total amount of the trifluoroethylene and the first component is 20 mass % or more and 95 mass % or less.   
     
     
         8 . The working fluid for the heat cycle according to  claim 3 ,
 wherein a ratio of a total amount of the trifluoroethylene and the carbon dioxide with respect to an entire amount of the working fluid for the heat cycle is over 90 mass % and 100 mass % or less, and   wherein a ratio of an amount of the trifluoroethylene with respect to the total amount of the trifluoroethylene and the carbon dioxide is 70 mass % or more and 80 mass % or less.   
     
     
         9 . The working fluid for the heat cycle according to  claim 4 ,
 wherein a ratio of a total amount of the trifluoroethylene and the fluoromethane with respect to an entire amount of the working fluid for the heat cycle is over 90 mass % and 100 mass % or less, and   wherein a ratio of an amount of the trifluoroethylene with respect to the total amount of the trifluoroethylene and the fluoromethane is 20 mass % or more and 80 mass % or less.   
     
     
         10 . The working fluid for the heat cycle according to  claim 5 ,
 wherein a ratio of a total amount of the trifluoroethylene and the trifluoroiodomethane with respect to an entire amount of the working fluid for the heat cycle is over 90 mass % and 100 mass % or less, and   wherein a ratio of an amount of the trifluoroethylene with respect to the total amount of the trifluoroethylene and the trifluoroiodomethane is 60 mass % or more and 80 mass % or less.   
     
     
         11 . The working fluid for the heat cycle according to  claim 6 ,
 wherein a ratio of a total amount of the trifluoroethylene and the propane with respect to an entire amount of the working fluid for the heat cycle is over 90 mass % and 100 mass % or less, and   wherein a ratio of an amount of the trifluoroethylene with respect to the total amount of the trifluoroethylene and the propane is 20 mass % or more and 95 mass % or less.   
     
     
         12 . The working fluid for the heat cycle according to  claim 1 , further comprising:
 a second component consisting of at least one of substance selected from hydrofluorocarbon where fluoromethane is excluded and hydrofluoroolefin where trifluoroethylene is excluded,   wherein the hydrofluorocarbon and the hydrofluoroolefin have a global warming potential (100 years) in the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report of 2000 or less.   
     
     
         13 . The working fluid for the heat cycle according to  claim 12 ,
 wherein the second component is consisting of at least one of substance selected from 2,3,3,3-tetrafluoropropene, 1,3,3,3-tetrafluoropropene and difluoromethane.   
     
     
         14 . The working fluid for the heat cycle according to  claim 12 ,
 wherein difluoromethane is contained as the second component.   
     
     
         15 . The working fluid for the heat cycle according to  claim 12 ,
 wherein 2,3,3,3-tetrafluoropropene is contained as the second component.   
     
     
         16 . The working fluid for the heat cycle according to  claim 12 ,
 wherein 1,3,3,3-tetrafluoropropene is contained as the second component.   
     
     
         17 . The working fluid for the heat cycle according to  claim 12 ,
 wherein a ratio of a total amount of the trifluoroethylene, the first component and the second component with respect to an entire amount of the working fluid for the heat cycle is over 90 mass % and 100 mass % or less,   wherein a ratio of an amount of the trifluoroethylene with respect to the total amount of the trifluoroethylene, the first component and the second component is 10 mass % or more and 90 mass % or less,   wherein a ratio of an amount of the first component with respect to the total amount of the trifluoroethylene, the first component and the second component is 1 mass % or more and 50 mass % or less, and   wherein a ratio of an amount of the second component with respect to the total amount of the trifluoroethylene, the first component and the second component is 1 mass % or more and 70 mass % or less.   
     
     
         18 . The working fluid for the heat cycle according to  claim 12 ,
 wherein a ratio of a total amount of the trifluoroethylene, the carbon dioxide and the second component with respect to an entire amount of the working fluid for the heat cycle is over 90 mass % and 100 mass % or less,   wherein a ratio of an amount of the trifluoroethylene with respect to the total amount of the trifluoroethylene, the carbon dioxide and the second component is 10 mass % or more and 90 mass % or less,   wherein a ratio of an amount of the carbon dioxide with respect to the total amount of the trifluoroethylene, the carbon dioxide and the second component is 1 mass % or more and 50 mass % or less, and   wherein a ratio of an amount of the second component with respect to the total amount of the trifluoroethylene, the carbon dioxide and the second component is 1 mass % or more and 70 mass % or less.   
     
     
         19 . The working fluid for the heat cycle according to  claim 14 ,
 wherein a ratio of a total amount of the trifluoroethylene, the carbon dioxide and the difluoromethane with respect to an entire amount of the working fluid for the heat cycle is over 90 mass % and 100 mass % or less,   wherein a ratio of an amount of the trifluoroethylene with respect to the total amount of the trifluoroethylene, the carbon dioxide and the difluoromethane is 10 mass % or more and 90 mass % or less,   wherein a ratio of an amount of the carbon dioxide with respect to the total amount of the trifluoroethylene, the carbon dioxide and the difluoromethane is 1 mass % or more and 50 mass % or less, and   wherein a ratio of an amount of the difluoromethane with respect to the total amount of the trifluoroethylene, the carbon dioxide and the difluoromethane is 1 mass % or more and 29 mass % or less.   
     
     
         20 . The working fluid for the heat cycle according to  claim 15 ,
 wherein a ratio of a total amount of the trifluoroethylene, the carbon dioxide and the 2,3,3,3-tetrafluoropropene with respect to an entire amount of the working fluid for the heat cycle is over 90 mass % and 100 mass % or less,   wherein a ratio of an amount of the trifluoroethylene with respect to the total amount of the trifluoroethylene, the carbon dioxide and the 2,3,3,3-tetrafluoropropene is 10 mass % or more and 90 mass % or less,   wherein a ratio of an amount of the carbon dioxide with respect to the total amount of the trifluoroethylene, the carbon dioxide and the 2,3,3,3-tetrafluoropropene is 1 mass % or more and 50 mass % or less, and   wherein a ratio of an amount of the 2,3,3,3-tetrafluoropropene with respect to the total amount of the trifluoroethylene, the carbon dioxide and the 2,3,3,3-tetrafluoropropene is 1 mass % or more and 70 mass % or less.   
     
     
         21 . The working fluid for the heat cycle according to  claim 16 ,
 wherein a ratio of a total amount of the trifluoroethylene, the carbon dioxide and the 1,3,3,3-tetrafluoropropene with respect to an entire amount of the working fluid for the heat cycle is over 90 mass % and 100 mass % or less,   wherein a ratio of an amount of the trifluoroethylene with respect to the total amount of the trifluoroethylene, the carbon dioxide and the 1,3,3,3-tetrafluoropropene is 10 mass % or more and 90 mass % or less,   wherein a ratio of an amount of the carbon dioxide with respect to the total amount of the trifluoroethylene, the carbon dioxide and the 1,3,3,3-tetrafluoropropene is 1 mass % or more and 50 mass % or less, and   wherein a ratio of an amount of the 1,3,3,3-tetrafluoropropene with respect to the total amount of the trifluoroethylene, the carbon dioxide and the 1,3,3,3-tetrafluoropropene is 1 mass % or more and 70 mass % or less.   
     
     
         22 . The working fluid for the heat cycle according to  claim 12 ,
 wherein a ratio of a total amount of the trifluoroethylene, the propane and the second component with respect to an entire amount of the working fluid for the heat cycle is over 90 mass % and 100 mass % or less,   wherein a ratio of an amount of the trifluoroethylene with respect to the total amount of the trifluoroethylene, the propane and the second component is 20 mass % or more and 95 mass % or less,   wherein a ratio of an amount of the propane with respect to the total amount of the trifluoroethylene, the propane and the second component is 1 mass % or more and 75 mass % or less, and   wherein a ratio of an amount of the second component with respect to the total amount of the trifluoroethylene, the propane and the second component is 1 mass % or more and 75 mass % or less.   
     
     
         23 . The working fluid for the heat cycle according to  claim 14 ,
 wherein a ratio of a total amount of the trifluoroethylene, the propane and the difluoromethane with respect to an entire amount of the working fluid for the heat cycle is over 90 mass % and 100 mass % or less,   wherein a ratio of an amount of the trifluoroethylene with respect to the total amount of the trifluoroethylene, the propane and the difluoromethane is 20 mass % or more and 95 mass % or less,   wherein a ratio of an amount of the propane with respect to the total amount of the trifluoroethylene, the propane and the difluoromethane is 1 mass % or more and 75 mass % or less, and   wherein a ratio of an amount of the difluoromethane with respect to the total amount of the trifluoroethylene, the propane and the difluoromethane is 1 mass % or more and 75 mass % or less.   
     
     
         24 . The working fluid for the heat cycle according to  claim 15 ,
 wherein a ratio of a total amount of the trifluoroethylene, the propane and the 2,3,3,3-tetrafluoropropene with respect to an entire amount of the working fluid for the heat cycle is over 90 mass % and 100 mass % or less,   wherein a ratio of an amount of the trifluoroethylene with respect to the total amount of the trifluoroethylene, the propane and the 2,3,3,3-tetrafluoropropene is 20 mass % or more and 95 mass % or less,   wherein a ratio of an amount of the propane with respect to the total amount of the trifluoroethylene, the propane and the 2,3,3,3-tetrafluoropropene is 1 mass % or more and 75 mass % or less, and   wherein a ratio of an amount of the 2,3,3,3-tetrafluoropropene with respect to the total amount of the trifluoroethylene, the propane and the 2,3,3,3-tetrafluoropropene is 1 mass % or more and 75 mass % or less.   
     
     
         25 . The working fluid for the heat cycle according to  claim 16 ,
 wherein a ratio of a total amount of the trifluoroethylene, the propane and the 1,3,3,3-tetrafluoropropene with respect to an entire amount of the working fluid for the heat cycle is over 90 mass % and 100 mass % or less,   wherein a ratio of an amount of the trifluoroethylene with respect to the total amount of the trifluoroethylene, the propane and the 1,3,3,3-tetrafluoropropene is 20 mass % or more and 95 mass % or less,   wherein a ratio of an amount of the propane with respect to the total amount of the trifluoroethylene, the propane and the 1,3,3,3-tetrafluoropropene is 1 mass % or more and 75 mass % or less, and   wherein a ratio of an amount of the 1,3,3,3-tetrafluoropropene with respect to the total amount of the trifluoroethylene, the propane and the 1,3,3,3-tetrafluoropropene is 1 mass % or more and 75 mass % or less.   
     
     
         26 . A composition for a heat cycle system, comprising the working fluid for the heat cycle according to  claim 1 . 
     
     
         27 . A heat cycle system using the composition for the heat cycle system according to  claim 26 . 
     
     
         28 . The heat cycle system according to  claim 27 ,
 wherein the heat cycle system is a refrigerating apparatus, an air-conditioning apparatus, a power generation system, a heat transport apparatus or a secondary cooling machine.