Combustion Gas Properties: Part II—Prediction of Partial Pressures of CO2 and H2O in Combustion Gases of Aviation and Diesel Fuels

[+] Author and Article Information
Ö. L. Gülder

National Research Council of Canada, Division of Mechanical Engineering, Ottawa, Ontario K1A 0R6, Canada

J. Eng. Gas Turbines Power 108(3), 455-459 (Jul 01, 1986) (5 pages) doi:10.1115/1.3239929 History: Received February 07, 1986; Online October 15, 2009


Empirical formulae are presented by means of which the partial pressures of CO2 and H2 O in the combustion gases of aviation fuel-air and diesel fuel-air systems can be calculated as functions of pressure, temperature, equivalence ratio, and hydrogen-to-carbon atomic ratio of the fuel. The formulae have been developed by fitting the data from a detailed chemical equilibrium code to a functional expression. Comparisons of the results from the proposed formulae with the results obtained from a chemical equilibrium code have shown that the mean absolute error in predicted partial pressures is around 0.8 percent. These formulae provide a very fast and easy means of predicting partial pressures of CO2 and H2 O as compared to equilibrium calculations, and they are also applicable to gasolines, residual fuels, and pure alkanes and aromatics as well as aviation and diesel fuels.

Copyright © 1986 by ASME
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