Combustion Method of Marine Fuel with High Rate of Exhaust GasRecirculation

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A systematic experimental research were conducted to clarify the ignition and combustion characteristics of fuel under the ambient conditions equivalent to the in-cylinder conditions of marine diesel engine with heavy exhaust gas recirculation. It is confirmed that the simultaneous reduction of NOx, Soot and CO can be achieved under a low O2 concentration condition, i.e., lower than 10%. The O2 fraction is a dominant factor of NOx emission and the amount of O2 is a dominant factor for both of Soot and CO emissions.