Equilibrium Composition of Flames
So far we have been able to treat the chemical changes taking place when a fuel is burned as one-way processes; in other words, the initial mixture of fuel and air burns completely to products (flue gas). For the standard design and analytical calculations this is a simple and adequate representation of what is taking place. However, there are circumstances under which the idea of a reaction proceeding to completion (i.e. from left to right in the conventional graphical notation) is not adequate to describe the situation. Examples of such situations are the formation of oxides of nitrogen and sulphur in flames and also in the accurate calculation of flame temperatures.
KeywordsCombustion Methane Dioxide Hydroxyl Enthalpy
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