ABSOLUTE MEASUREMENTS OF THE THERMAL CONDUCTIVITY OF AQUEOUS NaCl SOLUTIONS AT PRESSURES UP TO 40 MPa.

Yuji Nagasaka, H. Okada, J. Suzuki, A. Nagashima

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

A description is given of absolute measurements of the thermal conductivity of aqueous NaCl solutions in the concentration range 0 to 5 molality, the temperature range 0 to 80 degree C and the pressure range 0. 1 to 40 MPa. An apparatus is based on the transient hot-wire method using coated wire. The accuracy of the experimental results is estimated to be plus or minus 0. 5%. The results constitute the first measurements of the pressure effect on the thermal conductivity of NaCl solutions. The pressure coefficient of the thermal conductivity is compared with that of the viscosity. Three typical equations for predicting the thermal conductivity of aqueous electrolyte solutions are checked against the present experimental results. It is found that none of these equations can reproduce the present data within the experimental error.

Original languageEnglish
Pages (from-to)859-866
Number of pages8
JournalBerichte der Bunsengesellschaft/Physical Chemistry Chemical Physics
Volume87
Issue number10
Publication statusPublished - 1983 Oct
Externally publishedYes

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Thermal conductivity
Wire
Pressure effects
Electrolytes
Viscosity
Temperature

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

ABSOLUTE MEASUREMENTS OF THE THERMAL CONDUCTIVITY OF AQUEOUS NaCl SOLUTIONS AT PRESSURES UP TO 40 MPa. / Nagasaka, Yuji; Okada, H.; Suzuki, J.; Nagashima, A.

In: Berichte der Bunsengesellschaft/Physical Chemistry Chemical Physics, Vol. 87, No. 10, 10.1983, p. 859-866.

Research output: Contribution to journalArticle

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