Dimethyl ether(DME) is an oxygenated fuel with a cetane number higher than that of diesel oil. It meets the ULEV emission regulation and reduces the smoke to almost zero when used in a diesel engine. In the present study, engine performance and exhaus...
Dimethyl ether(DME) is an oxygenated fuel with a cetane number higher than that of diesel oil. It meets the ULEV emission regulation and reduces the smoke to almost zero when used in a diesel engine. In the present study, engine performance and exhaust emissions were' investigated with a 8 liter conventional DI diesel engine by using dimethyl ether fuel for development of medium-duty DME bus. Test results showed that the torque and the power with DME were about 70% as those of pure diesel oil, but the brake thermal efficiency decreased a little. Also, smoke index from DME engine showed nearly zero level and NOx was decreased a little compared to diesel oil.