期刊
JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA
卷 42, 期 2, 页码 -出版社
AIP Publishing
DOI: 10.1063/1.4794091
关键词
critical phenomena; n-heptane; thermal conductivity; transport properties
资金
- International Union of Pure and Applied Chemistry
This paper contains new, representative reference equations for the thermal conductivity of n-heptane. The equations are based in part upon a body of experimental data that have been critically assessed for internal consistency and for agreement with theory whenever possible. In the case of the dilute-gas thermal conductivity, a theoretically based correlation was adopted in order to extend the temperature range of the experimental data. Moreover, in the critical region, the experimentally observed enhancement of the thermal conductivity is well represented by theoretically based equations containing just one adjustable parameter. The correlations are applicable for the temperature range from the triple point to 600 K and pressures up to 250 MPa. The overall uncertainty (considered to be estimates of a combined expanded uncertainty with a coverage factor of 2) of the proposed correlation is estimated, for pressures less than 250 MPa and temperatures less than 600 K, to be less than 4%. (C) 2013 by the U. S. Secretary of Commerce on behalf of the United States. All rights reserved.
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