Liquid Thermal Conductivity of Binary Mixtures of Pentafluoroethane (R125) and 1,1,1,2-Tetrafluoroethane (R134a) |
| |
Authors: | S U Jeong M S Kim S T Ro |
| |
Affiliation: | (1) Department of Mechanical Engineering, Seoul National University, Seoul, 151-742, Korea |
| |
Abstract: | Thermal conductivities of zeotropic mixtures of R125 (CF3CHF2) and R134a (CF3CH2F) in the liquid phase are reported. Thermal conductivities have been measured by a transient hot-wire method with one bare platinum wire. Measurements have been carried out in the temperature range of 233 to 323 K and in the pressure range of 2 to 20 MPa. The dependence of thermal conductivity on temperature, pressure, and composition of the binary mixture is presented. Measured thermal conductivity data are correlated as a function of temperature, pressure, and overall composition of the mixture. The uncertainty of our measurements was estimated to be better than 2%. |
| |
Keywords: | mixture R125 R134a R125+R134a refrigerant thermal conductivity transient hot-wire method |
本文献已被 SpringerLink 等数据库收录! |
|