強制レイリー散乱法による溶融塩の温度伝導率測定 : 1000℃以上のアルカリ金属塩化物の測定

概要

論文の詳細を見る
The paper reports measurements of the thermal diffusivity of four molten alkali chlorides (LiCl, NaCl, RbCl and CsCl) in the temperature range above 1000℃ by the forced Rayleigh scattering method. The dye substance employed is K_2Cr_2O_7 in order to color the transparent molten salts. The accuracy is estimated to be ±4 to ±11% depending on the measured substances. In comparison with the present results converted to thermal conductivity, most of the previous experimental data obtained by steady-state methods show larger values (up to about five times) which may be due to the presence of convection and radiation. It is found that the thermal conductivity of these series of molten alkali metal chlorides decreases with increasing molecular weight, and the temperature coeffcients are weakly negative.
一般社団法人日本機械学会の論文
1990-05-25