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Combustion and Emission Characteristics of Passenger Car Common-rail Diesel Engine with DME Fuel  

Lee, Dong-Gon (Graduate School, Hanyang University)
Youn, In-Mo (Graduate School, Hanyang University)
Roh, Hyun-Gu (Department of Mechanical & Automotive Engineering, Induk University)
Choi, Seuk-Cheun (Korea Institute of Industrial Technology)
Lee, Chang-Sik (Department of Mechanical Engineering, Hanyang University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.18, no.6, 2010 , pp. 91-97 More about this Journal
Abstract
This paper described the effects of DME blended fuel on the engine combustion and emission characteristics of four cylinder CRDI diesel engine. Biodiesel was added into the DME fuel in order to improve the low kinematic viscosity of DME fuel. In this work, the experiment was performed under th various injection timings and injection strategy at constant engine speed and engine load. To maintain the fuel pressure and temperature, pressure and temperature controllers were installed to the DME fuel system. The results show that ignition delay was shortened and combustion duration was extended when DME blended fuel is supplied. Despite of slightly higher NOx emission with DME blended fuel at equal conditions in comparison with those of diesel fuel, the engine showed lower HC and CO emission characteristics.
Keywords
DME(Dimethyl ether); Emission characteristics; Alternative fueled engine; Oxygenated fuel;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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