Marine gas turbine propulsion engine is derived from the turbo-shaft aero engine which has achieved many millions of flying hours in commercial aircraft. A typical application of the gas turbine is as the cruising engine in COGOG propulsion machinery. The combustion casing is a cylindrical housing that encloses a group of flame tubes, positioned in the annulus formed between the casing and an integral heat shield assembly. The air intake combustion chamber is used for the burning and cooling process. Cooling air is required to insulate components against heat radiation to prevent leakage of hot gases from the gas stream and to dissipate heat from the turbine assemblies.
combustion chamber, gas turbine, airflow
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