Abstract
This study investigates the correlation between chemical structure and laminar flame velocity SL of saturated hydrocarbons from methane up to octane isomers by using detailed chemical kinetics mechanisms, those were modified to reproduce the experimental SL of alkanes and alkenes available in the literature. The mechanisms predict no dependence of main chain length on SL except methane and ethane, and the decrease of SL with increasing the branched structures. Reaction flow and sensitivity analysis show that the concentration of vinyl and ethyl radical have correlation with SL because these two radicals lead to chain branching processes.