MODEL OF TURBULENT MIXING AND REACTION FOR H-2-AIR COMBUSTION

A one-dimensional stochastic turbulent mixing model is formulated for application to a constant diameter, cylindrical combustion geometry. S imulations are performed to study effects of turbulence and nonequilib rium chemistry on NO formation in a cylindrically confined H-2-air jet . Effects of secondary air injectors, combustion tube diameter, flow r ate, and equivalence ratio on NO formation are presented over a range of these parameters. It is illustrated that variations of these parame ters can lead to reduced NO production by increasing the turbulence le vels and through minimization of residence times in stoichiometric reg ions where NO production is greatest. Application of these results to the development of new burner concepts is addressed.