THERMAL-CONDUCTIVITY OF GASEOUS DIFLUOROMETHANE AND PENTAFLUOROETHANENEAR THE SATURATION LINE

Authors
SUN LQ ZHU MS HAN LZ LIN ZZ
Citation
Lq. Sun et al., THERMAL-CONDUCTIVITY OF GASEOUS DIFLUOROMETHANE AND PENTAFLUOROETHANENEAR THE SATURATION LINE, Journal of chemical and engineering data, 42(1), 1997, pp. 179-182
Citations number
8
Categorie Soggetti
Engineering, Chemical",Chemistry
Journal title
Journal of chemical and engineering data → ACNP
ISSN journal
00219568
Volume
42
Issue
1
Year of publication
1997
Pages
179 - 182
Database
ISI
SICI code
0021-9568(1997)42:1<179:TOGDAP>2.0.ZU;2-R
Abstract
The paper reports the measurements of the thermal conductivity of gase ous difluoromethane (HFC-32) over the temperature range 254.51 K to 34 1.76 K and the thermal conductivity of gaseous pentafluoroethane (HFC- 125) over the temperature range 251.21 K to 333.70 K near the saturati on line. The thermal conductivities were measured in a transient hot-w ire instrument employing two anodized tantalum wires as the heat sourc e with an uncertainty of 3%. The results were correlated as a function of temperature and compared with the results from the literature.