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

Patent metadata

Field	Value
Publication number	US-2022177761-A1
Application number	US-202217682416-A
Country	US
Kind code	A1
Filing date	Feb 28, 2022
Priority date	Jun 1, 2015
Publication date	Jun 9, 2022
Grant date	—

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.

First claim

What is claimed is:

1 . A working fluid for a heat cycle, comprising:
trifluoroethylene; and a first component comprising propane.

2 . 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.

3 . The working fluid for the heat cycle according to claim 1 ,
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.

4 . The working fluid for the heat cycle according to claim 1 , further comprising:
a second component selected from the group consisting of 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.

5 . The working fluid for the heat cycle according to claim 4 ,
wherein the second component is at least one of 2,3,3,3-tetrafluoropropene, 1,3,3,3-tetrafluoropropene or difluoromethane.

6 . The working fluid for the heat cycle according to claim 4 ,
wherein difluoromethane is the second component.

7 . The working fluid for the heat cycle according to claim 4 ,
wherein 2,3,3,3-tetrafluoropropene is the second component.

8 . The working fluid for the heat cycle according to claim 4 ,
wherein 1,3,3,3-tetrafluoropropene is the second component.

9 . The working fluid for the heat cycle according to claim 4 ,
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.

10 . The working fluid for the heat cycle according to claim 4 ,
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.

11 . The working fluid for the heat cycle according to claim 6 ,
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.

12 . The working fluid for the heat cycle according to claim 7 ,
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 9) mass % and 00 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.

13 . The working fluid for the heat cycle according to claim 8 ,
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.

14 . A heat cycle system comprising the working fluid according to claim 1 .

15 . The heat cycle system according to claim 14 , 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.

Assignees

• Agc Inc

Inventors

• Ueno Katsuya
• ONO Hikaru
• Tanaka Toshiyuki
• Okamoto Hidekazu
• Hayamizu Hiroki
• Fukushima Masato
• TASAKA Mai

Classifications

• C09K5/045 Primary

  containing only fluorine as halogen · CPC title

• C09K2205/106

  Carbon dioxide · CPC title

• C09K5/04

  the change of state being from liquid to vapour or vice versa · CPC title

• C09K2205/126

  Unsaturated fluorinated hydrocarbons · CPC title

• C09K2205/132

  containing nitrogen · CPC title