THERMAL CONDUCTIVITY OF HFO-1234ze(E)+HFC-32 MIXTURE

Th erma l conductivities of saturated liquid of HFO-1234ze(E), HFC-3 2, and their mixture has been measured and t he measured data ar e re ported prom ptly, though measured conditions are limited and f urther survey is required for veri fication of the measure ment u ncertainty. Measured thermal conductivit y of et hanol with the present appa ratus agrees with value f rom literatur e within ±3% error in the tem perature condition of 10-50°C though it is 1 0% lower at 70 °C. Measured thermal conductivity of HFC-32 is 5~7% higher than literature values. Therm al conductivit y of HFO- 1234ze(E) is about 30% lower than t hat of HFC-32. F or HF O-1234ze(E)+HFC-32 mixture with 50/50mass%, thermal conductivity is between those of HFO-1234ze(E) and HFC-32 and concentration variation shows slightly concave line.