ABSTRACT
When a premixed fuel:air mixture is ignited, the flame is established at a distance L from the burner. The theory behind such a phenomenon is that as the mixture is lit, the flame propagates toward the burner with a velocity S; however, the flame is stabalized at L because the gas velocity is equal and opposite to S. The flame velocity is a function of stoichiometry. Assuming that the flame is anchored at x and y such that the fuel is locally in stoichiometric proportion to oxygen, and gas velocity at that point is equal to S, derive an expression for that location. (Hint: Chapter 12.)
Problem 15.4:
Show that
∫
(1
−
q
) exp(
−
E*/
q
) d
q
≈
{exp(
−
E*)/E*
} [1
−
6/ E*
+
36/E*
]; ignore values due to lower limits, i.e., exp(
−
E*) >> exp(
−
E*/
q
).
Problem 15.5.
