【作者】

Takayuki Hirose

【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。This paper focuses on the fundamental test results which were carried out with the largest premixed lean burn gas engine and simulation results. The author's previous work shows that a pre-ignition occurs in a smaller gas engine but can be prevented by keeping lean gas mixture condition with improving the gas mixing. From the point of scavenging and gas mixing process, the stable operating condition without pre-ignition as well as knocking in large gas engine is discussed with the sweep test of engine parameters; such as Lambda, scavenging port, exhaust valve timing, scavenging temperature, gas injection parameters etc. The residual gas effect is also discussed with 1D simulation results. Furthermore, the behavior of cylinder lubricating oil which effects on pre-ignition is provided by the advanced CFD simulation which can predict the evaporation and auto-ignition phenomena of cylinder lubricating oil. Finally, the reason for success in large gas engine operation with premixed lean burn concept is discussed.

【会议名称】

第28届CIMAC会议

【会议地点】

芬兰 赫尔辛基

【下载次数】

3

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