Thermal conductivity of the new refrigerants R134a, R152a, and R123 measured by the transient hot-wire method
- Universitaet Stuttgart (Germany)
Thermal-conductivity measurements are reported for the new refrigerants R134a, R152a und R123. Transient hot-wire experiments were performed which cover both the liquid and vapor states at temperatures and pressures ranging from [theta] = [minus]20[degrees]C to 90[degrees]C and from p = O.1 bar to 60 bar respectively. The results are correlated with density and temperature. In addition temperature dependent correlations are presented for (1) saturated liquid, (2) saturated vapor, (3) ideal gas (which equals approximately vapor state at ambient pressure). Finally the results are compared with data from the literature and also with the thermal conductivities of R12 and R11. 35 refs., 14 figs., 8 tab.
- OSTI ID:
- 7187246
- Journal Information:
- International Journal of Thermophysics; (United States), Journal Name: International Journal of Thermophysics; (United States) Vol. 13:6; ISSN 0195-928X; ISSN IJTHDY
- Country of Publication:
- United States
- Language:
- English
Similar Records
Vapor pressures of new fluorocarbons
Experimental performance of ozone-safe alternative refrigerants: Experimental performance comparisons of R32, R125, R143a, R218, R134a, R152a, R134, R124, R142b, RC318 and R143 in a refrigeration circuit
Related Subjects
360606* -- Other Materials-- Physical Properties-- (1992-)
CHLOROFLUOROCARBONS
DENSITY
FLUIDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
REFRIGERANTS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
WORKING FLUIDS