高温ヒートポンプ用冷媒 HFO-1336mzz(E)の飽和液体密度の測定

抄録

Saturated liquid density and vapor pressure for HFO-1336mzz(E) were measured in the temperature range from 300 K to 400 K at intervals of 10 K by the extraction method. Saturated liquid density is obtained in the pressure range from 736 kg/m³ to 1291 kg/m³ . Vapor pressure is obtained in the pressure range from 206 kPa to 2584 kPa. In comparison with HFC-245fa, saturated liquid densities of HFO-1336mzz(E) are less about 0.96 times at 310 K and 0.77 times at 400 K than those of HFC-245fa. Vapor pressures of HFO-1336mzz(E) are higher about 1.2 times than those of HFC-245fa. Experimental uncertainties are estimated to be 0.028 K for temperature, 0.4 kPa for pressure and 0.9 kg/m³ for density. On a basis of the present data, correlations of vapor pressure and saturated liquid density were formulated. The maximum deviations from correlations were 4.6 kPa for vapor pressure and 1.4 kg/m³ for saturated liquid density, respectively. The standard deviations from correlations were 2.1 kPa for vapor pressure and 0.7 kg/m³ for saturated liquid density, respectively.