Influence of Microjets Flow Condition on a Dump Combustor Reacting Flow Characteristics
Lean premixed (LP) combustion in gas turbines has a great potential to achieve higher operating efficiency and lower emissions and hence draws an immense interest from both the research and the industrial community. Due to the nature of the flame in an LP combustion mode, the turbulent eddies alter the flame structure thereby enhancing the mixing of the reactants and the products. The transport of scalar quantities is augmented due to the turbulence. Lean nature of the fuel-air mixture results in a lower overall temperature thereby reducing the potential for NOx generation. The design constraints involved in achieving these objectives are challenging. LP combustion requires the fuel-air mixture to be as lean as possible to attain lower equivalence ratio, stable combustion dynamics at all operating conditions and sufficient residence time.