Reference data for the thermal conductivity of saturated liquid toluene over a wide range of temperatures

Maria L V Ramires, Carlos A. Nieto De Castro, Richard A. Perkins, Yuji Nagasaka, Akira Nagashima, Marc J. Assael, William A. Wakeham

Research output: Contribution to journalArticle

77 Citations (Scopus)

Abstract

Efficient design of industrial processes and equipment requires accurate thermal conductivity data for a variety of fluids, such as alternative refrigerants, fuels, petrochemicals, aqueous systems, molten salts, and molten metals. The accuracy of experimental thermal conductivity data is a function of the operating conditions of the instrument. Reference data are required over a wide range of conditions to verify the claimed uncertainties of absolute instruments and to calibrate relative instruments, since either type may be used to measure the thermal conductivity of fluids. Recently, accurate experimental data for the thermal conductivity of liquid toluene near the saturation line have been obtained, which allow the upper temperature limit of the previous reference-data correlation to be extended from 360 to 553 K. The thermal conductivity was measured using two transient hot-wire instruments from 300 to 550 K, the first with a bare 12.7 μm platinum wire and the second using an anodized 25 μm tantalum wire. Uncertainties due to the contribution of thermal radiation and the purity of the samples are discussed. The proposed value of the thermal conductivity of liquid toluene at 298.15 K and 0.1 MPa is 0.13 088 ± 0.000 85. The quality of the data is such that new improved recommendations and recommended values can be proposed with uncertainties at 95% confidence of 1% for 189 <T< 440 K, 1.5% for 440 <T< 480 K, and 2% for 480 <T< 553 K, near the saturation line.

Original languageEnglish
Pages (from-to)133-139
Number of pages7
JournalJournal of Physical and Chemical Reference Data
Volume29
Issue number2
Publication statusPublished - 2000 Mar

Fingerprint

Toluene
toluene
Thermal conductivity
thermal conductivity
Thermal conductivity of liquids
Liquids
Wire
liquids
wire
Tantalum
Temperature
Fluids
temperature
Heat radiation
Refrigerants
Platinum
Liquid metals
Petrochemicals
saturation
data correlation

Keywords

  • High temperature
  • Reference data
  • Saturated liquid
  • Thermal conductivity
  • Toluene

ASJC Scopus subject areas

  • Chemistry(all)
  • Physical and Theoretical Chemistry

Cite this

Ramires, M. L. V., Nieto De Castro, C. A., Perkins, R. A., Nagasaka, Y., Nagashima, A., Assael, M. J., & Wakeham, W. A. (2000). Reference data for the thermal conductivity of saturated liquid toluene over a wide range of temperatures. Journal of Physical and Chemical Reference Data, 29(2), 133-139.

Reference data for the thermal conductivity of saturated liquid toluene over a wide range of temperatures. / Ramires, Maria L V; Nieto De Castro, Carlos A.; Perkins, Richard A.; Nagasaka, Yuji; Nagashima, Akira; Assael, Marc J.; Wakeham, William A.

In: Journal of Physical and Chemical Reference Data, Vol. 29, No. 2, 03.2000, p. 133-139.

Research output: Contribution to journalArticle

Ramires, MLV, Nieto De Castro, CA, Perkins, RA, Nagasaka, Y, Nagashima, A, Assael, MJ & Wakeham, WA 2000, 'Reference data for the thermal conductivity of saturated liquid toluene over a wide range of temperatures', Journal of Physical and Chemical Reference Data, vol. 29, no. 2, pp. 133-139.
Ramires, Maria L V ; Nieto De Castro, Carlos A. ; Perkins, Richard A. ; Nagasaka, Yuji ; Nagashima, Akira ; Assael, Marc J. ; Wakeham, William A. / Reference data for the thermal conductivity of saturated liquid toluene over a wide range of temperatures. In: Journal of Physical and Chemical Reference Data. 2000 ; Vol. 29, No. 2. pp. 133-139.
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