ABSTRACT

Combustion chambers are required to burn stably over a wide range of operating conditions with levels of combustion efciency close to 100%. Another important requirement is easy and reliable lightup during ground starting while the engine is being cranked up to its self-sustaining speed. The aircraft gas turbine has the additional requirement of rapid relighting of the combustor after a ameout in ight. Thus, the combustion performance parameters of prime importance to the gas turbine are combustion efciency, stability, and ignition. The essential features of these three major topics are reviewed in this chapter.