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Thermophysics and Aeromechanics

2003 year, number 2

Thermal conductivity of hexafluoropropane HFC-236ea

O.I. Verba and V.A. Gruzdev
Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
Pages: 237-244


Thermal conductivity of gaseous and liquid 1, 1, 1, 2, 3, 3-hexafluoropropane (HFC-236ea) was studied over the temperature range from 307 to 434 K at pressures from 0.18 up to 2.8 MPa. Measurements were carried out by a steady-state coaxial-cylinder method. The purity of samples used in the measurements are 99.4 mole %. Measurement error does not exceed 2 % within the measurement errors. The low-density thermal conductivity of HFC-236ea does not differ from thermal conductivity of HFC-227ea and octafluoropropane, but it is significantly lower than thermal conductivity of propane. A dependence of thermal conductivity of HFC-236ea on the temperature and pressure was approximated by a fourthpower polynomial (in pressure). Thermal conductivities of gaseous and liquid HFC-236ea at the saturation line were calculated.