Document Type
Article
Publication Date
1-2019
Abstract
The basic thermodynamic theories of terrestrial dry and moist air are summarized. Atmospheric water vapor-liquid, vapor-ice and liquid-ice phase transitions using Clapeyron and Clausius-Clapeyron equations are presented in a coherent and clear way. Basic theory and several practical expressions to compute dew points and/or relative humidity are presented. Density altitude corrected for humidity can be easily computed from presented moist air thermodynamic relationships. Understanding thermodynamics and dynamics of atmospheric moist air and phase transitions is of fundamental importance for safety and economy of flight operations. Moist air plays significant role not only in atmospheric and cloud physics, but also for aircraft performance computations, human life support and environmental control systems.
Department
Aviation
Online ISSN
2374-6793
Publication Title
International Journal of Aviation Aeronautics and Aerospace, 6(3).
Recommended Citation
Daidzic, N. E. (2019). On moist air and dew points. International Journal of Aviation, Aeronautics, and Aerospace, 6(3), Article 3. https://doi.org/10.15394/ijaaa.2019.1339
DOI
10.15394/ijaaa.2019.1339
Link to Publisher Version (DOI)
Publisher's Copyright and Source
Scholarly Commons © 2019.
Originally published by Scholarly Commons in 2019 in International Journal of Aviation, Aeronautics, and Aerospace, 6(3), Article 3. https://doi.org/10.15394/ijaaa.2019.1339.
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
