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순수 DME의 직접분사식 디젤기관의 성능 및 배기가스 특성
표영덕,이영재,김강출,김문헌,Pyo, Young-Dug,Lee, Young-Jae,Kim, Gang-Chul,Kim, Mun-Heon 대한기계학회 2003 大韓機械學會論文集B Vol.27 No.5
DME(Dimethyl ether) is an oxygenated fuel with a octane 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 conventional DI diesel engine which has a jerk type injection pump. Test results showed that the power with DME were almost same as that of pure diesel oil, and the brake thermal efficiency increased a little. Also, smoke index from DME engine showed nearly zero level, but NO$_{x}$ was increased compare to diesel oil.