Working medium and heat cycle system
View Patent ↗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).
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.