Use of ternary compositions
US-2015344761-A1 · Dec 3, 2015 · US
Heat transfer method
US9683157B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9683157-B2 |
| Application number | US-201615142898-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 29, 2016 |
| Priority date | Sep 11, 2009 |
| Publication date | Jun 20, 2017 |
| Grant date | Jun 20, 2017 |
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Abstract
Official abstract text for this publication.
A heat transfer method using ternary compositions containing 2,3,3,3-tetrafluoropropene, 1,1-difluoroethane and difluoromethane, said compositions being especially interesting as a heat transfer fluid in compression refrigeration systems comprising exchangers operation in counterflow mode or in split flow mode with counterflow tendency. The use of a ternary composition of 2,3,3,3-tetrafluoropropene, 1,1-difluoroethane and difluoromethane as heat transfer fluid in compression-type refrigeration systems with exchangers operating in countercurrent mode or in crossed-current mode with countercurrent tendency.
First claim
Opening claim text (preview).
The invention claimed is: 1. A compression-type refrigeration system comprising a heat exchanger operating in countercurrent mode or in crossed-current mode with countercurrent tendency and a heat transfer fluid comprising a refrigerant consisting essentially of a ternary composition of 45 to 70 wt. % of 2,3,3,3-tetrafluoropropene, 10 to 40 wt. % of 1,1-difluoroethane and 20 to 25 wt. % of difluoromethane. 2. The system as claimed in claim 1 , wherein the heat transfer fluid is stabilized with at least one stabilizer. 3. The system as claimed in claim 1 , wherein the heat transfer fluid comprises at least one stabilizer selected from the group consisting of nitromethane, ascorbic acid, terephthalic acid, azoles, phenolic compounds, hydroquinone, t-butyl hydroquinone, 2,6-di-tert-butyl-4-methylphenol, epoxides, hexanediol diglycidyl ether, allyl glycidyl ether, butylphenylglycidyl ether, phosphites, phosphates, phosphonates, thiols and lactones. 4. The system as claimed in claim 1 , wherein the heat transfer fluid comprises at least one lubricant selected from the group consisting of mineral oil, alkylbenzene, polyalkylene glycol and polyvinyl ether.
Assignees
Inventors
Classifications
Compression machines, plants or systems, with reversible cycle (defrosting cycles F25B47/02) · CPC title
- C09K5/045Primary
containing only fluorine as halogen · CPC title
All components of a mixture being fluoro compounds · CPC title
the refrigerant containing more than one component (F25B9/004 takes precedence) · CPC title
Unsaturated fluorinated hydrocarbons · CPC title
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- What does patent US9683157B2 cover?
- A heat transfer method using ternary compositions containing 2,3,3,3-tetrafluoropropene, 1,1-difluoroethane and difluoromethane, said compositions being especially interesting as a heat transfer fluid in compression refrigeration systems comprising exchangers operation in counterflow mode or in split flow mode with counterflow tendency. The use of a ternary composition of 2,3,3,3-tetrafluoropro…
- Who is the assignee on this patent?
- Arkema France
- What technology area does this patent fall under?
- Primary CPC classification C09K5/045. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 20 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).