Research on HCCI combustion of dimethyl ether and methanol-reformed gas

摘要

This research analyzed characteristics of homogeneous charge compression ignition combustion using dimethyl ether and methanol-reformed gas. Dimethyl ether was employed as the high cetane number fuel and methanol-reformed gas was as the high octane number fuel. Both dimethyl ether and methanol-reformed gas can be reformed from methanol in endothermic reactions using exhaust heat of engines. The experiments were made with several proportions of the fuels and compression ratio to control ignition timing. The results show that the homogeneous charge compression ignition combustion has high thermal efficiency over a wide range of operation.