TY - JOUR
T1 - Measurement of the Thermal Diffusivity of Liquids by the Forced Rayleigh Scattering Method. 3rd Report. Measurement of Molten Salts
AU - Hatakeyama, Takuya
AU - Miyahashi, Yoshito
AU - Okuda, Masakazu
AU - Nagasaka, Yuji
AU - Nagashima, Akira
PY - 1988
Y1 - 1988
N2 - The thermal diffusivity of molten KCl has been measured in the temperature range up to 1000°C by the forced Rayleigh scattering method. Through the experimental assessment of appropriate dye materials for high temperature molten salts, the materials employed here were CoCl2 and NiCl2 for KCI and K2[PdCl6] for NaNO3 (check measurement at 333°C). 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 NiCl2. 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.
AB - The thermal diffusivity of molten KCl has been measured in the temperature range up to 1000°C by the forced Rayleigh scattering method. Through the experimental assessment of appropriate dye materials for high temperature molten salts, the materials employed here were CoCl2 and NiCl2 for KCI and K2[PdCl6] for NaNO3 (check measurement at 333°C). 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 NiCl2. 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.
KW - Forced Rayleigh Scattering Method
KW - Molten Salts
KW - Thermal Diffusivity
KW - Thermophysical Properties
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U2 - 10.1299/kikaib.54.1131
DO - 10.1299/kikaib.54.1131
M3 - Article
AN - SCOPUS:0024014702
SN - 0387-5016
VL - 54
SP - 1131
EP - 1137
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
IS - 501
ER -