The chemical reaction mechanism of Dimethly Ether (DME) and single zone combustion model are used to investigate the effects of compression ratio and cold EGR rate on HCCI combustion characteristics.

• 摘要应用单区燃烧模型和已建立的二甲醚氧化反应机理，对二甲醚的HCCI过程进行了模拟计算，研究了变压缩比和不同的冷却EGR率对二甲醚的HCCI特性的影响。