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Chemical Equilibrium of Butane Combustion in a Perfectly Stirred Reactor: Thermodynamic – Mathematical Model

[+] Author Affiliations
Ricardo S. Vásquez, Antonio J. Bula, Javier E. Camargo

Universidad del Norte, Barranquilla, Colombia

Paper No. IMECE2002-32991, pp. 555-563; 9 pages
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Advanced Energy Systems
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Advanced Energy Systems Division
  • ISBN: 0-7918-3626-6 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME


Based on classic thermo chemistry, energy balance and the introduction of chemical equilibrium, a mathematical and thermodynamic model was developed for the combustion of butane in a perfectly stirred reactor (PSR). In order to obtain this model, it was necessary to take into account certain variables that have a strong effect on combustion such as adiabatic flame temperature, equivalence ratio, equilibrium composition, reactor pressure and the incoming temperature of the reactants (ITR). By using the mathematical model it was possible to obtain graphic solutions for adiabatic flame temperature, equilibrium composition of the different species vs equivalence ratio, composition changes as a function of pressure ratio and the ITR. The mathematical model gave reasonable results, showing values that match with those obtained using complex models. This shows that it is possible to achieve a very simple model for butane combustion by using the basic principles, and what is more important, the results present a high degree of accuracy.

Copyright © 2002 by ASME



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