船用中速柴油机NO_x排放性能优化研究  

Study on NO_x Emission Performance Optimization of Medium Speed Marine Diesel Engine

作　　者：王洪锋[1] 徐建新[1] 王新权[1] 方文超[1] 张伟[1] 

机构地区：[1]中国船舶重工集团公司第711研究所,上海201108

出　　处：《船舶工程》2010年第1期20-25,共6页Ship Engineering

摘　　要：利用专业的发动机仿真软件BOOST和HYDSIM建立柴油机工作过程模型和电控单体泵仿真模型,并根据现有的柴油机试验数据和电控单体泵系统平台试验数据对计算模型进行标定;运用标定好的模型对电控单体泵系统配机的排放性能进行优化分析,最终结合米勒循环和喷油正时调整得出优化结果;考虑到油、气、室三者间的匹配要求,最终的优化把喷射、雾化与燃烧结合起来,并通过三维燃烧分析软件对电控单体泵系统的改进方案进行校核,为实现电控单体泵系统与柴油机良好的匹配提供了有力的支撑.The simulation models of a diesel engine working process and an electronic-controlled unit pump fuel injection system were built by BOOST and HYDSIM software, and were calibrated by engine test data and the EUP platform test data. Simulation research on NOx emission and optimal matching of combustion system and electronic-controlled unit pump was carried out with the application of miller cycle and injection timing adjusting. Finally, the optimized matching scheme was calibrated by three dimensional CFD analysis software, considering injection, spray and combustion. This paper is hoped to be helpful for the matching research of diesel engine and electronic-controlled unit pump.

关 键 词：船用柴油机 电控单体泵 米勒循环 IMO Tier2 NOx 

分 类 号：U664.121.2[交通运输工程—船舶及航道工程] TK421.5[交通运输工程—船舶与海洋工程]