火花点火发动机质量燃烧率计算方法的研究

STUDY OF MASS FRACTION BURNED CALCULATION METHODS FOR SPARK IGNITION ENGINES

用ＡＶＬ数据采集系统测量了火花，久火发动机在不同工况下的示功图，用Ｒａｓｓ－ｗｅｉｌｅｒ－Ｗｉｔｈｒｏｗ方法和零维双区模型方法分别计算了质量燃烧率，讨论分析了两种计算方法的优劣，明确了各自的应用场合。

Theh indcator diagrams of spark ignition engines were measured with AVL data acquis-tion system at various engine operation conditions.The mass fraction burned curves werecalculated with both Rassweiler and Withrow method and zero-dimensional two-zone modelmethod.Advantages and disadvantages of both methods were discussed and their applicationfieldswere cleared.