Which components make up a combustor?

The components that form a combustor are crucial for the combustion process within a gas turbine. The correct answer includes the cowl assembly, dome, inner liner, and outer liner.

The cowl assembly serves as the outer structure that helps streamline airflow into the combustor and maintains the shape and integrity of the combustion chamber. The dome is integral to the combustor as it provides the initial area where fuel and air mix before entering the combustion zone, facilitating efficient combustion. The inner and outer liners form the walls of the combustor; the inner liner is exposed to the intense heat of combustion, while the outer liner typically has cooling features to prevent overheating and manage thermal stresses. Together, these components ensure proper mixing of fuel and air, effective combustion, and safe containment of the combustion process, which are essential for the overall efficiency and performance of the gas turbine engine.

The other choices include components that either do not belong specifically to the combustor assembly or represent broader elements of the gas turbine system, such as rotor and stator systems unrelated to combustion, or entirely different sections of the engine, which do not focus solely on combustor construction.