Measurement of the thermal diffusivity of molten KCl up to 1000°C by the forced Rayleigh scattering method

Y. Nagasaka, A. Nagashima

研究成果: Article

17 引用 (Scopus)

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This paper describes measurement of the thermal diffusivity of molten KCl in the temperature range from 804 to 1030°C by the forced Rayleigh scattering method. In this contact-free optical measuring technique for the thermal diffusivity of liquids, a sample needs to be colored by the admixture of a dye for suitable absorption of a heating laser beam. The dye substances employed are CoCl2 and NiCl2, which were chosen through the experimental evaluation. The accuracy is estimated to be ±7% for molten KCl colored with NiCl2. The results converted to thermal conductivity show one of the smallest values among other previous data; the difference is a factor of four. The present study demonstrates the promising applicability of the forced Rayleigh scattering method to the measurement of high-temperature molten salts, which has never be attained by other conventional methods.

元の言語English
ページ(範囲)923-931
ページ数9
ジャーナルInternational Journal of Thermophysics
9
発行部数6
DOI
出版物ステータスPublished - 1988 11 1

ASJC Scopus subject areas

  • Condensed Matter Physics

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