Working medium and heat cycle system

Patent metadata

Field	Value
Publication number	US-9593274-B2
Application number	US-201314084016-A
Country	US
Kind code	B2
Filing date	Nov 19, 2013
Priority date	May 19, 2011
Publication date	Mar 14, 2017
Grant date	Mar 14, 2017

Abstract

To provide a working medium for heat cycle, of which combustibility is suppressed, which has less influence over the ozone layer, which has less influence over global warming and which provides a heat cycle system excellent in the cycle performance (efficiency and capacity), and a heat cycle system, of which the safety is secured, and which is excellent in the cycle performance (efficiency and capacity).
A working medium for heat cycle comprising 1-chloro-2,3,3,3-tetrafluoropropene is employed for a heat cycle system (such as a Rankine cycle system, a heat pump cycle system, a refrigerating cycle system 10 or a heat transport system).

First claim

What is claimed is:

1. A working medium composition comprising 1-chloro-2,3,3,3-tetrafluoropropene and a dibasic acid ester oil.

2. The working medium composition according to claim 1 , which further comprises a stabilizer.

3. The working medium composition according to claim 2 , wherein a content of the stabilizer is at most 5 mass % in 100 mass % of the working medium composition.

4. The working medium composition according to claim 1 , which further comprises a leak detecting substance.

5. The working medium composition according to claim 4 , wherein the leak detecting substance is an ultraviolet fluorescent dye, an odor gas or an odor masking agent.

6. The working medium composition according to claim 4 , wherein a content of the leak detecting substance is at most 2 mass % in 100 mass % of the working medium composition.

7. The working medium composition according to claim 1 , which further comprises 1,1,2-trifluoroethylene.

8. A heat cycle system comprising the working medium composition of claim 1 .

9. A heat cycle system comprising the working medium composition of claim 7 .

10. The working medium composition according to claim 1 , comprising 1-chloro-2,3,3,3-tetrafluoropropene and ditridecyl glutarate.

11. The working medium composition according to claim 1 , comprising 1-chloro-2,3,3,3-tetrafluoropropene and an ester of a C 5-10 dibasic acid with a C 1-15 monohydric alcohol which is linear or has a branched alkyl group.

12. The working medium composition according to claim 1 , comprising 1-chloro-2,3,3,3-tetrafluoropropene and di(2-ethylhexyl) adipate.

13. The working medium composition according to claim 1 , comprising 1-chloro-2,3,3,3-tetrafluoropropene and diisodecyl adipate.

14. The working medium composition according to claim 1 , comprising 1-chloro-2,3,3,3-tetrafluoropropene and ditridecyl adipate.

15. The working medium composition according to claim 1 , comprising 1-chloro-2,3,3,3-tetrafluoropropene and di(3-ethylhexyl) sebacate.

Assignees

• Asahi Glass Co Ltd

Inventors

• Fukushima Masato

Classifications

• C09K2205/122

  Halogenated hydrocarbons · CPC title

• F25B2500/222

  Detecting refrigerant leaks · CPC title

• C09K2205/126

  Unsaturated fluorinated hydrocarbons · CPC title

• F25B9/002

  characterised by the refrigerant · CPC title

• C09K5/044 Primary

  comprising halogenated compounds · CPC title