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Reference Correlation for the Thermal Conductivity of Ammonia from the Triple Point Temperature to 680 K and Pressures up to 80 MPa



S.A. Monogenidou, Marc J. Assael, Marcia L. Huber


This paper presents new wide-ranging correlation for the thermal conductivity of ammonia based on critically evaluated experimental data. The correlation is designed to be used with a recently published nist-equation of state that is valid from the triple point temperature up to 680 K and pressures up to 80 MPa. We estimate the uncertainty at a 95% confidence level to be 6.8% over the aforementioned range, with the exception of the dilute-gas range where the uncertainty is 4% over the temperature range 285 K to 575 K. The uncertainties will be larger outside of the validated range, and also in the critical region.
J. Phys. & Chem. Ref. Data (JPCRD) -


ammonia, thermal conductivity, transport properties
Created October 25, 2018, Updated January 31, 2019