2012 Fiscal Year Final Research Report
Research on the rapid measurement of stability of a refrigerant having low global warming potential
| Project/Area Number |
22510094
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental technology/Environmental materials
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| Research Institution | 群馬県立群馬産業技術センター (2012)
Gunma Prefectural Industrial Technology Center (2010-2011) |
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Principal Investigator |
SUZUKI Takashi 群馬県立群馬産業技術センター, 主任研究員 (40196837)
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| Co-Investigator(Kenkyū-buntansha) |
KATSUTA Masafumi 早稲田大学, 理工学部, 教授 (20120107)
TAJIMA So 群馬県立産業技術センター, 独立研究員 (30469887)
YAMAMOTO Ryoichi 群馬県立産業技術センター, 主任研究員 (40469888)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 環境負荷低減技術 / 、低環境負荷冷媒 / 冷媒新規計測法 / 環境保全 |
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| Research Abstract |
So far the evaluation of stability regarding refrigerants has been carried out by ANSI-ASHRAE method. A metal specimen and a refrigerant are set in glass made shield tube and these are maintained statically for about 5 ~ 10 days to obtain stability results by the method. Contrary to the conventional method, in this work, a refrigerant was circulating continuously onto high dispersed type metal specimen by using closed circulating system, and as a result, the relative stability of the refrigerant having low GWP (global warming potential) like R-1234yf (2,3,3,3-tetrafluoropropylene) and R-134a (1,1,1,2-tetrafluoroethane) was obtained within several hours. It was conjectured that decomposition of R-1234yf was enhanced on nickel and aluminum metal species but was suppressed on copper metal species. In addition, the formation of hydrogen fluoride was suggested during the decomposition of R-1234yf in the presence of metals like aluminum. Thus the short term measurement for the stability of refrigerants showing low GWP was successfully achieved.
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[Presentation]2012
Author(s)
鈴木 崇,小松俊二,〓 相哲、勝田正文
Organizer
2012 年度日本冷凍空調学会年次大会
Place of Presentation
札幌
Year and Date
20120000
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[Presentation]
Author(s)
鈴木 崇,小松俊二,〓 相哲、勝田正文
Organizer
2011 年度日本冷凍空調学会年次大会
Place of Presentation
東京
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