代替フロン類の表面張力の測定:第2報: HCFC-123およびHFC-134aの表面張力

Translated title of the contribution: Measurements of the Surface Tension for CFC Alternatives:2nd Report: Surface Tension for HCFC-123 and HFC-134a

東 之弘, 池田 忠光, 桑名 健朗, 岡田 昌章

Research output: Contribution to journalArticlepeer-review

Abstract

Measurements of the surface tension for two kinds of CFC alternatives, i.e., HCFC-123 (2,2-dichloro-1,1,1-trifluoroethane), and HFC-134a (1,1,1,2-tetrafluoroethane), have been made by the differential capillary rise method (DCRM) and the vertical plate method (VPM). For HCFC-123, 15 data have been obtained by DCRM in the temperature range between 273 and 333 K within the uncertainty of ±0.1mN/m, and 21 data have been obtained by VPM in the temperature range between 273 and 290 K within the uncertainty of ±0.2mN/m. For HFC-134a, 17 data have been obtained by DCRM in the temperature range between 276 and 329 K within the uncertainty of ±0.1mN/m. The uncertainty of temperature measurement by DCRM is estimated within ±20mK, whereas that by VPM within ±30mK. New correlations of the surface tension for HCFC-123 and HFC-134a have been also proposed.
Translated title of the contributionMeasurements of the Surface Tension for CFC Alternatives:2nd Report: Surface Tension for HCFC-123 and HFC-134a
Original languageUndefined/Unknown
Pages (from-to)191-198
Number of pages8
Journal日本冷凍空調学会論文集
Volume9
Issue number2
DOIs
Publication statusPublished - 1992

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