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

doi:10.1299/kikaib.55.2411

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 journal › Article › peer-review

1 Citation (Scopus)

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 language	English
Pages (from-to)	2411-2416
Number of pages	6
Journal	Transactions of the Japan Society of Mechanical Engineers Series B
Volume	55
Issue number	516
DOIs	https://doi.org/10.1299/kikaib.55.2411
Publication status	Published - 1989
Externally published	Yes

Keywords

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

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

Access to Document

10.1299/kikaib.55.2411

Cite this

Thermal Conductivity Measurement of Molten Salts by the Transient Hot-Wire Method: (2nd Report, Measurements of Molten NaNO₃ and KNO₃ Using Ceramic-Coated Probes). / Kitade, Shintaro; Kobayashi, Yuji; Nagasaka, Yuji et al.
In: Transactions of the Japan Society of Mechanical Engineers Series B, Vol. 55, No. 516, 1989, p. 2411-2416.

Research output: Contribution to journal › Article › peer-review

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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.",

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