Combustion Modeling for Turbulent Premixed Propane-Air Mixture

Document Type : Research articles

Authors

Mechanical Engineering Dept., Faculty of Engineering at Shoubra, Benha University

Abstract

In the present study, ANSYS Fluent Computational Fluid Dynamics CFD package is utilized to analyze the combustion of premixed propane/air mixture in a cylindrical combustion chamber surrounded by an annular space where cold water enters to and exits from the annular space, simply simulating gas/water heater. The combustion process is assumed to take place in one step (one reaction). Species transport and finite rate/eddy dissipation is used. The flow is assumed to turbulent and standard k- is employed. The effect of the equivalence ratio, , (0.55-1.0) and the inlet gas mixture temperature (400K-600K) on the combustion process in investigated. The temperature and species mass fractions as well as their contours are presented. Also, the combustion efficiency and the heat release rate