Detonation Limits of Triple Mixtures

A result close to the aforementioned one can be obtained without time-consuming calculations like in [27]. Specific characteristics of the change in combustible gas mixture flame propagation limits are well known. Let us assume that such a mixture contains n compounds, with the concentration of each individual substance - its lower (or upper) flame propagation limit - ( i. Following the Le Chateher s law [58]  

For a binary gas mixture, the dependence diagram is a straight line cutting off ipii and ( 21 sections at the limits of the mixture flame propagation in the Cartesian coordinate system (fn - ni- 

The validity of the law (7.1) for the lower combustion gas limit has been repeatedly proved, with very rare exceptions. On the contrary, the upper limit of flame propagation meets the conditions (7.1) is an exception for most of the cases. There are many reasons for this cold flame of one of the components, selective diffusion etc. Combustion of H2 + CO, H2 + CH4, H2 + C3H8, and H2 + C2H4 mixtures with air complies satisfactorily with Le Chatelier s law [51]. 

Atkinson, D.C. BuU, P.J. Shuff, Initiation of spherical detonation in hydrogen/air. Combust. Flame 39, 287-300 (1980) 

Westbrook, Hydrogen oxidation kinetics in gaseous detonation. Combust. Sci. Technol. 

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