The diffuser, which is the combustion inlet, is located immediately downstream of which component?

The diffuser, which is the combustion inlet, is located immediately downstream of which component?

• A. The inlet
• B. The compressor outlet
• C. The combustion chamber
• D. The exhaust nozzle

Answer: (D)

The diffuser serves as the combustion inlet and its job is to slow down the high-speed air leaving the compressor and raise its static pressure so it can enter the combustor efficiently. Because this flow conditioning happens right after compression, the diffuser is placed immediately downstream of the compressor outlet and immediately upstream of the combustor. It is not after the inlet, nor at the exhaust nozzle, nor inside the combustion chamber itself. In short, the diffuser sits between the compressor and the combustor to prepare the air for efficient burning.

The diffuser serves as the combustion inlet and its job is to slow down the high-speed air leaving the compressor and raise its static pressure so it can enter the combustor efficiently. Because this flow conditioning happens right after compression, the diffuser is placed immediately downstream of the compressor outlet and immediately upstream of the combustor. It is not after the inlet, nor at the exhaust nozzle, nor inside the combustion chamber itself. In short, the diffuser sits between the compressor and the combustor to prepare the air for efficient burning.