Measurement and Correlation of the Thermal Conductivity of Propane From 86 K to 600 K at Pressures to 70 Mpa

Published

August 1, 2002

Author(s)

K N. Marsh, Richard A. Perkins, M L. Ramires

Abstract

New experimental data on the thermal conductivity of propane are reported that allow improved correlations to be developed. Previous correlations have been limited by a lack of thermal conductivity data for the vapor at temperatures below 300 K and liquid data near the critical point. In addition, significant discrepancies were noted in the high-temperature dilute-gas thermal conductivity. The present data cover the temperature range from the triple point at 85.5 K to 600 K and the pressure range 0.1 to 70 Mpa. They are estimated to have an uncertainty of 1% for measurements removed from the critical point and at pressures above 1 Mpa, which increases to 3% in the critical region and 4% at low pressures (<1 Mpa). These new experimental data are used together with the previously available data to develop improved correlations for the thermal conductivity of propane. The thermal-conductivity correlation for propane is estimated to have an uncertainty of about 3% at a 95% confidence level, with the exeption of state points near the critical point and the dilute gas, where the uncertainty of the correlation increases to 5%.

Citation

Journal of Chemical and Engineering Data

Volume

47

Issue

No. 4

Pub Type

Journals

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Keywords

correlation, critical, enhancement, propane, thermal conductivity, transport properties

Citation

Marsh, K. , Perkins, R. and Ramires, M. (2002), Measurement and Correlation of the Thermal Conductivity of Propane From 86 K to 600 K at Pressures to 70 Mpa, Journal of Chemical and Engineering Data, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=831693 (Accessed May 9, 2025)