柴油机NO生成的计算机模拟分析和试验研究

COMPUTER SIMULATION ANALYSIS AND EXPERIMENTAL RESEACH ON THE NO FORMATION IN DIESEL ENGINES

本文对柴油机NO的生成进行计算机模拟分析和试验研究。利用台架实验数据,根据现象学燃烧模型,以美国卡特彼勒(Caterpillar)C6121高速柴油机和上柴6135ACa高速柴油机为对象,计算了缸内新鲜空气消耗率,火焰燃烧温度以及该温度下的NO生成率等参数,并进行了试验研究。

This paper reports the computer simulation analysis and the experimental reseach on the NO formation in Diesel engines. Based on the phenomenological combustion model, some combustion parameters, such as the consumption rate of fresh air, the flame temperature and the formation rate of NO at that temperature, are calulated by inputting the conventional engine test data. The experiments are carried out on a Caterpillar C6121 H.S. Diesel engine and a 6135ACa H.S. Diesel engine, and some valuable conclusions are drawn.