強制レイリー散乱法による液体の温度伝導率測定の研究 : 第3報,溶融塩の測定

概要

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The thermal diffusivity of molten KCl has been measured in the temperature range up to 1000℃ by the forced Rayleigh scattering method. Through the experimental assessment of appropriate dye materials for high temperature molten salts, the materials employed here were CoCl_2 and NiCl_2 for KCI and K_2[PdCl_6] for NaNO_3 (check measurement at 333℃). In the case of very weak absorbing dye for molten salts, it was found that scattered light superimposed over the diffracted light of interest has to be taken into account to analyze the output voltage signals of a photomultiplier. The accuracy of the measurement is estimated to be ±7% for KCl colored with NiCl_2. The present KCl results show one of the smallest values among other previous data and they are different by a factor of four. The present study demonstrates the promising applicability of this method to high temperature molten salts.
一般社団法人日本機械学会の論文
1988-05-25