An optimized kinetic model for H2-O2 combustion in jet-stirred reactor at atmospheric pressure
Journal Title: Journal of Research in Ecology - Year 2016, Vol 4, Issue 1
Abstract
An optimized kinetic model for hydrogen combustion in a jet-stirred reactor was proposed based on a validated mechanism. The rate constants were optimized using a genetic algorithm to minimize the prediction error of the outlet species’ concentrations. The reference experimental data of jet-stirred reactor were selected from the literature. Optimization was established with and without constraints. Then, the kinetic models were evaluated using the relative errors in predicting the concentrations of major species at the outlet (H2, O2 and H2O) and their accuracy in the calculation of ignition delay times. The comparison of experimental and calculated ignition delay time using unconstrainedly optimized model, rejected the optimization of kinetic model without any constraints. The optimized kinetic model showed a relatively better performance than the original model, especially under atmospheric conditions. At higher pressures and very rich conditions, the deviations from experimental data became greater than the original model
Authors and Affiliations
Seyed Mahdi Hedayatzadeh, Mohammad Soltanieh, Esmaeil Fatehifar, Amir Heidarinasab, Mohammad Reza Jafari Nasr
Keywords
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