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Improvement of Emission Performance in a 3.3 Liter DI Diesel Engine by Using Dimethyl Ether Fuel  

Pyo, Young-Dug (Transportation Energy Research Center, KIER)
Lee, Young-Jae (Transportation Energy Research Center, KIER)
Kim, Mun-Heon (Department of Mechanical Engineering, Soongsil University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.15, no.4, 2007 , pp. 178-185 More about this Journal
Abstract
A study is improvement of power and emission in a inline-pump Dr 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 and 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.
Keywords
DME(Dimethyl ether); DI diesel engine; Oxygenated fuel; Alternative diesel fuel; DOC(Diesel Oxdation Catalyst); EGR(Exhaust Gas Recirculation);
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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