甲醇/柴油双直喷型JCCI发动机多参数优化研究
Research on the multiple-parameter optimization of methanol/diesel JCCI engine with dual-direct injection
甲醇/柴油双直喷型射流控制压缩着火模式已经被证明具有较好的经济性和排放性。双直喷系统的灵活性更高、参数影响更复杂,本文采用三维数值模拟结合优化算法与敏感性分析,在 75%负荷条件下开展了多参数对186FA发动机性能的影响研究。优化结果表明,初始温度在 421.8～431.1 K之间,甲醇替代率在 78.9%～80.8%,柴油射流正时位于-26.64～-22.77 °CA ATDC之间,可以同时实现较高的经济性和排放性。三个典型算例的对比分析结果表…查看全部>>
The methanol/diesel jet controlled compression ignition(JCCI)mode with dual-direct injection has been demonstrated to have good economy and emission performance.The dual-direct injection system has higher flexibility and more complex parameter effects,the three-dimensional numerical simulation combined with optimization algorithm and sensitivity analysis were used in this study to investigate the influence of multiple-parameter on the performance of 186FA en…查看全部>>
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