According to the requirement of low pollution emission of marine gas turbine

the combustion performance of a triple swirler lean premixed combustor was experimentally studied. Results showed that: for the triple swirler chamber

the internal and middle swirl angles determined the success of ignition

and the outer swirl had an influence on the ignition limit. A combination of 10 degrees and 33.3%

25.0% swirl numbers increase of the inner

middle and outer swirl angles had better ignition and blowout performance. The minimum lean ignition fuel-air ratio was 0.05236

lean blow-out fuel-air ratio was 0.00478; the outlet temperature distribution coefficient was 0.2279

fully meeting the design requirements; the content of NOx was lower than that of 2.62g/kg. But the CO content was higher up to 35.4g/kg

leading to slightly lower combustion efficiency

only 0.9847.