期刊
JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA
卷 46, 期 3, 页码 -出版社
AIP Publishing
DOI: 10.1063/1.4996885
关键词
thermal conductivity; transport properties; n-undecane; viscosity
This paper presents new, wide-ranging correlations for the viscosity and thermal conductivity of n-undecane based on critically evaluated experimental data. The correlations are designed to be used with a recently published equation of state that is valid from the triple ;point to 700 K, at pressures up to 500 MPa, with densities below 776.86 kg m(-3). The estimated uncertainty for the dilute-gas viscosity is 2.4%, and the estimated uncertainty for viscosity in the liquid phase for pressures up to 60 MPa over the temperature range 260 K-520 K is 5%. The estimated uncertainty is 3% for the thermal conductivity of the low-density gas and 3% for the liquid over the temperature range from 284 K to 677 K at pressures up to 400 MPa. Both correlations behave in a physically reasonable manner when extrapolated to the full range of the equation of state, but care should be taken when using the correlations outside of the validated range. The uncertainties will be larger outside of the validated range and also in the critical region. (C) 2017 by the U.S. Secretary of Commerce on behalf of the United States. All rights reserved.
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