Thermal Conductivity Measurement of Molten Salts by the Transient Hot-Wire Method: (2nd Report, Measurements of Molten NaNO3 and KNO3 Using Ceramic-Coated Probes)

Shintaro Kitade, Yuji Kobayashi, Yuji Nagasaka, Akira Nagashima

Research output: Contribution to journalArticle

Abstract

The present paper reports absolute measurements of the thermal conductivity of molten salts by the transient hot-wire method using newly developed ceramic-coated probes. Al2O3 has been employed as the insulation material and the following techniques have been utilized to produce insulation layers: ion plating for a thin platinum hot-wire and plasma-spray for thick titanium struts. The measurements have been performed on pure NaNO3 in the temperature range 311°C to 388°C and KNO3 349°C to 439°C. The experimental data have an estimated accuracy of ±3%. In comparison with the present results, most of he previous experimental data obtained by steady-state methods show higher values which may be due to the presence of convection and radiation.

Original languageEnglish
Pages (from-to)2411-2416
Number of pages6
JournalTransactions of the Japan Society of Mechanical Engineers Series B
Volume55
Issue number516
DOIs
Publication statusPublished - 1989 Jan 1
Externally publishedYes

Keywords

  • Insulation Techniques
  • KNO
  • Molten Salts
  • NaNO
  • Thermal Conductivity
  • Thermophysical Properties
  • Transient Hot-Wire Method

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

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