## 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.