DME 연료를 사용한 3.3 리터 디젤기관의 배기성능 향상에 관한 연구 = Improvement of Emission in a DI Diesel Engine by using Dimethyl Ether fuel

다국어 초록 (Multilingual Abstract)

A study is improvement of power and emission in a inline-pump DI diesel engine by using Dimethyl ether Fuel. 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. But NOx emission is almost same that of diesel engine. CO, THC emissions are lower than that of diesel engine. The emissions aren't satisfied the stronger emission regulation in the further. Generally DOC(Diesel oxidation catalyst) is used to reduce CO & THC emissions and EGR(Exhaust gas recirculation) system is used to reduce NOx emission. Test results showed that the torque and the power with DME were almost same as those of pure diesel oil, but the brake thermal efficiency increased a little. also the bsec(brake specific energy consumption) with DME was similar that of diesel. The test results showed that the DOC was the vary effective method to reduce the CO emission in case of Dimethyl Ether Fuel in diesel engine. But, THC emission is showed a little reduction rates. Also EGR system was the very effective method to reduce the NOx emission in case of Dimethyl Ether Fuel in diesel engine.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 실험장치 및 방법
• 3. 실험결과 및 고찰
• 4. 결론
• 후기
• References