摘要
采用仿真和试验相结合的方法,研究高增压船用柴油机推进特性低负荷降低涡轮前排气温度的方案。通过仿真计算发现,由于受活塞和气门型线的限制,进/排气门正时优化的改善效果不明显;而进/排气旁通可大幅降低涡轮前排气温度,同时改善低负荷下的油耗。进/排气旁通系统在柴油机的试验测试表明其能够大幅降低涡轮前排气温度,最多可达120℃。
Combining simulation and testing, the reduction was researched of exhaust temperature before turbine of a high boosted marine diesel engine at low load with propeller curve. The simulation results show that the effect of the intake and exhaust valve timing optimization on the reduction of exhaust temperature before turbine is not obvious because the valve timing optimization is limited to the piston
作者
钱跃华
朱骏
刘博
QIAN Yuehua;ZHU Jun;LIU Bo(China Shipbuilding Power Engineering Institute Co.,Ltd.,Shanghai 201206,China）Research on Reduction of Exhaust Temperature Before Turbine of High-Boosted Marine Diesel Engine at Low Load)
出处
《内燃机工程》
EI
CAS
CSCD
北大核心
2018年第4期29-32,38,共5页
Chinese Internal Combustion Engine Engineering
基金
高技术船舶科研-船用柴油机及传动系统主被动隔振与消声技术研究研制经费资助项目~~
