【作者】

Hiroshi Tajima

【摘要】

该论文已在赫尔辛基举行的第28届CIMAC大会上发表，论文的版权归CIMAC所有。With progression of so-called shale gas revolution, gas engines are expected as a strong substitute for diesel engines in marine fields, where strict emission regulations have been recently introduced. Thanks to the sulphur-free (in LNG form) and low-carbon features of natural gas, gas engines emit much less CO2 (c.a.-25%) and particulate matter than marine diesels burning heavy fuel oil. The premixed lean-burn engines, however, suffer two massive flaws. One is abnormal combustion called “knocking”, which limits the maximum engine torque, and the other is a methane slip, which substantially means the unburned methane emitted into exhaust ports. Since methane is 25 times as harmful as CO2 in the greenhouse effect, the methane slip could halve the above-mentioned CO2 reduction.

【会议名称】

第28届CIMAC会议

【会议地点】

芬兰 赫尔辛基

【下载次数】

2

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