| 摘要:以某船用大功率高增压柴油机为研究对象，采用一维工作过程软件进行仿真计算，研究不同排气管方案和不同米勒正时方案对柴油机性能的影响规律。结论是:通过匹配柴油机排气能量利用率更高的排气管和适当强度的米勒正时，可以在满足排放法规的前提下，降低柴油机热负荷和燃油消耗率，有利于提高柴油机的可靠性和经济性。 |
| 关键词: 船用高增压柴油机 米勒循环 排气管 仿真 |
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| Research on Performance Optimization of Marine Diesel EngineBased on Simulation |
| Chen Ying,Huang Li,Su Dandan |
| Naval Deputy Office of Wenzhou District, Zhejiang Wenzhou 325000;Shanghai Marine Diesel Engine Research Institute, Shanghai 201108 |
| Abstract:Taking a marine high power and high turbocharged diesel engine as the research object, the influence of different scheme of exhaust pipe and different Miller timing on diesel engine performance had been studied through simulation method. The results showed that under the premise of meeting the emission regulations, the thermal load and fuel consumption rate could be reduced by matching exhaust pipe with higher diesel engine exhaust energy utilization ratio and Miller timing with appropriate intensity, which was beneficial to improve the reliability and economy of diesel engine. |
| Key words: marine high turbocharged diesel engine Miller cycle exhaust pipe simulation |
