| 摘要:对某型中速大功率柴油机应用米勒循环进行了仿真计算研究,并通过分析确定试验方案并进行试验验证。试验结果表明,应用米勒循环使该型中速大功率柴油机NOx排放降低10.5%；配合几何压缩比的增大和气门重叠角的缩小,能有效改善米勒循环下发动机的经济性。该研究为中速大功率柴油机应用米勒循环提供了参考。 |
| 关键词: 中速大功率柴油机 米勒循环 压缩比 气门重叠角 |
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| Simulation and Experimental Investigation of Miller Cycle on a Medium-speed High-power Diesel Engine |
| Li Xiang,Ren Zizhong,Wang Xinquan,Zhu Jian,Ping Tao,Wang Hongfeng |
| Shanghai Marine Diesel Engine Research Institute, Shanghai201108 |
| Abstract:The miller cycle simulation research of a medium-speed diesel engine was conducted. And to verify the simulation results, testing program was determined and tests were carried out. The test results show that application of miller-cycle can reduce the NOx emission by 10.5%, coupled with the compression ratio increasing and valve-timing overlap angle reduction, the economical efficiency could be improved effectively. This study provides a reference for the application of miller-cycle on high-power medium-speed diesel engine. |
| Key words: high-power medium-speed diesel miller-cycle compression ratio valve-timing overlap angle |
