Fundamentals of Premixed Turbulent Combustion


Book Description

Lean burning of premixed gases is considered to be a promising combustion technology for future clean and highly efficient gas turbine combustors. Yet researchers face several challenges in dealing with premixed turbulent combustion, from its nonlinear multiscale nature and the impact of local phenomena to the multitude of competing models. Filling







Detailed Studies of the Quick Mixing Region in Rich Burn Low-No(x) Combustion


Book Description

NO(x) reduction is a driving force in combustor design today. The fuel-air mixing process can have a significant effect on NO(x) production. This report describes a set of experiments carried out to assess fuel-air mixing sensitivities to geometric variation in the Rich-Burn/Quick-Mix/Lean-Burn (RQL) combustor concept utilized in stationary gas turbine engine applications and proposed for advanced transport aircraft engines. Specifically, three (3) parameters in the quick-mix zone were examined: jet injection angle, jet-to-expansion distance, and jet count (number of jets).Samuelsen, G. S. and St.John, D.Glenn Research CenterNITROGEN OXIDES; GAS TURBINE ENGINES; JET FLOW; INJECTION; GAS EXPANSION; COMBUSTION CHAMBERS; AIRCRAFT ENGINES