Formulation of High-temperature Properties for Moist Air
Abstract
This paper presents the formulations for the thermodynamic properties of moist air at temperatures from −40 to 320°C, humidity ratios from 0 to 1 kg/kgda, and pressures from 0.069680 (corresponds to altitude of 3000 m) to 5 MPa. Real gas behavior is modeled using the virial equation of state. Up-to-date values for the virial coefficients of both air and water vapor are used to accurately predict the behavior of moist air. Equations are derived and results are presented for humidity ratio, specific volume, enthalpy, entropy, wet- and dry-bulb temperatures, and relative humidity. In addition, saturation data are presented for humidity ratio, specific volume, enthalpy, entropy, and compressibility. The formulation and calculations presented herein extend the range of psychrometric moist air data with humidity ratios up to 1 kg/kgda and temperatures up to 320°C. © 2002 Taylor & Francis Group, LLC.
Recommended Citation
H. F. Nelson and H. J. Sauer, "Formulation of High-temperature Properties for Moist Air," HVAC and R Research, vol. 8, no. 3, pp. 311 - 334, Taylor and Francis Group; Taylor and Francis, Jan 2002.
The definitive version is available at https://doi.org/10.1080/10789669.2002.10391444
Department(s)
Mechanical and Aerospace Engineering
International Standard Serial Number (ISSN)
1078-9669
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Taylor and Francis Group; Taylor and Francis, All rights reserved.
Publication Date
01 Jan 2002
