Which feature allows access to combustion liners without removing the turbine section?

Which feature allows access to combustion liners without removing the turbine section?

• A. Front flange
• B. Inlet plenum
• C. Inlet casing
• D. Outer casing

Answer: (D)

Access to combustion liners is gained through the outer shell that surrounds the combustor. The outer casing is designed with removable panels or doors, so you can open it and reach the liners for inspection, cleaning, or replacement without pulling apart the turbine section itself. The other components—front flange, inlet plenum, and inlet casing—belong to the front or intake areas and do not provide direct access to the combustion chamber. Hence, the outer casing is the feature that allows access to the combustion liners without removing the turbine section.

Access to combustion liners is gained through the outer shell that surrounds the combustor. The outer casing is designed with removable panels or doors, so you can open it and reach the liners for inspection, cleaning, or replacement without pulling apart the turbine section itself. The other components—front flange, inlet plenum, and inlet casing—belong to the front or intake areas and do not provide direct access to the combustion chamber. Hence, the outer casing is the feature that allows access to the combustion liners without removing the turbine section.