A 28-species reduced chemistry mechanism for Dimethyl Ether (DME) combustion is developed on the basis of a recent detailed\r\nmechanism by Zhao et al. (2008). The construction of reduced chemistry was carried out with automatic algorithms incorporating\r\nnewly developed strategies. The performance of the reduced mechanism is assessed over a wide range of combustion conditions\r\nanticipated to occur in future advanced piston internal combustion engines, such as HCCI, SAHCCI, and PCCI. Overall, the\r\nreduced chemistry gives results in good agreement with those from the detailed mechanism for all the combustion modes tested.\r\nWhile the detailed mechanism by Zhao et al. (2008) shows reasonable agreement with the shock tube autoignition delay data, the\r\ndetailed mechanism requires further improvement in order to better predict HCCI combustion under engine conditions.
Loading....