MEASUREMENT OF THE THERMAL DIFFUSIVITY OF LIQUIDS BY THE FORCED RAYLEIGH SCATTERING METHOD (3RD REPORT, MEASUREMENT OF MOLTEN SALTS).

Takuya Hatakeyama, Uoshito Miyahashi, Masakazu Okuda, Yuji Nagasaka, Akira Nagashima

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The thermal diffusivity of molten KCl has been measured in the temperature range up to 1000 degree 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 CoCl//2 and NiCl//2 for KCl and K//2 left bracket PdCl//2 right bracket for NaNO//3 (check measurement at 333 degree 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 plus or minus 7 percent 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.

Original languageEnglish
Pages (from-to)1131-1137
Number of pages7
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume54
Issue number501
Publication statusPublished - 1988 May
Externally publishedYes

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Rayleigh scattering
Thermal diffusivity
molten salts
thermal diffusivity
Molten materials
brackets
Salts
Liquids
liquids
dyes
Dyes
Photomultipliers
Temperature
output
electric potential
Electric potential
temperature

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

MEASUREMENT OF THE THERMAL DIFFUSIVITY OF LIQUIDS BY THE FORCED RAYLEIGH SCATTERING METHOD (3RD REPORT, MEASUREMENT OF MOLTEN SALTS). / Hatakeyama, Takuya; Miyahashi, Uoshito; Okuda, Masakazu; Nagasaka, Yuji; Nagashima, Akira.

In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 54, No. 501, 05.1988, p. 1131-1137.

Research output: Contribution to journalArticle

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