Thermal conductivity of HFC-152a in the temperature range 300 to 455 K at pressures up to 55MPa

Bernard Le Neindre (1) , Yves Garrabos (2)

1 LIMHP - Laboratoire d'Ingénierie des Matériaux et des Hautes Pressions
2 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux

Thermal conductivity of HFC-152a was measured in a coaxial cylinder cell operating in a steady state. The measurements were performed along several quasi-isotherms between 300 and 455K in the gas phase and the liquid phase. The pressure range covered varies from 0.1 to 55 MPa. An empirical equation is presented which describes the thermal conductivity outside the critical region as a function of temperature and density from 300 to 455 K. A careful analysis of the various sources of error leads to an estimated uncertainty of approximately ′1.5%.

Mots clés: Thermal conductivity; HFC-152a; Coaxial cylinder cell

Domaines: Matériaux

Bernard Le Neindre, Yves Garrabos. Thermal conductivity of HFC-152a in the temperature range 300 to 455 K at pressures up to 55MPa. High Temperatures-High Pressures, 2002, 34, pp.307-314. ⟨10.1068/htjr029⟩. ⟨hal-00728210⟩