Reference Correlation for the Viscosity of Ammonia from the Triple Point to 725 K and up to 50 MPa

S A Monogenidou; M J Assael; M L Huber

doi:10.1063/1.5036724

Reference Correlation for the Viscosity of Ammonia from the Triple Point to 725 K and up to 50 MPa

J Phys Chem Ref Data. 2018:47:10.1063/1.5036724. doi: 10.1063/1.5036724.

Authors

S A Monogenidou¹, M J Assael¹, M L Huber^{2

3}

Affiliations

¹ Laboratory of Thermophysical Properties and Environmental Processes, Chemical Engineering Department, Aristotle University, Thessaloniki 54636, Greece.
² Applied Chemicals and Materials Division, National Institute of Standards and Technology, 325 Broadway, Boulder, CO 80305, USA.
³ Partial contribution of NIST, not subject to copyright in the U.S.

Abstract

This paper presents a new wide-ranging correlation for the viscosity of ammonia based on critically evaluated experimental data. The correlation is designed to be used with a recently developed equation of state, and it is valid from the triple point to 725 K, at pressures up to 50 MPa. The estimated uncertainty varies depending on the temperature and pressure, from 0.6% to 5%. The correlation behaves in a physically reasonable manner when extrapolated to 100 MPa, however care should be taken when using the correlations outside of the validated range.

Keywords: ammonia; transport properties; viscosity.

Grants and funding

9999-NIST/Intramural NIST DOC/United States