Numerical calculations have been completed on flames supported by a Semenoff type (chain branching with first order chain breaking step) sequence of reactions;A →2B, B →C, A + B → 2B + C (FOB) This sequence is peculiar in that, according to the steady – state approximation, there is an explosion point at which both the radical concentration and reaction rate go to infinity. Whether or not the explosion point is reach in a particular flame depends upon the assumed reaction rates. The Klein method was used to solve the flame equations for five cases.
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