Combustion Method of Marine Fuel with High Rate of Exhaust GasRecirculation

为阐明船舶柴油机在相当于缸内条件的环境条件下的着火和燃烧特性，进行了系统的试验研究。结果表明，在低氧气浓度条件下，NOx、碳烟和CO可以同时降低，即低于10%。O2分数是NOx排放的主导因素，O2的量是碳烟和CO排放的主导因素。

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.