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http://dx.doi.org/10.7316/KHNES.2012.23.5.530

A Study on Combustion and Emission Characteristics of Diesel-DME Blended Fuels in D.I Compression-Ignition Engine  

Jeong, Jaehoon (Grad. of Mechanical and Automotive Engineering, Ulsan Uni.)
Lim, Ocktaeck (Department of Mechanical and Automotive Engineering, Ulsan Uni.)
Jeon, Jong Up (Department of Mechanical and Automotive Engineering, Ulsan Uni.)
Lee, Sangwook (Department of Mechanical and Automotive Engineering, Ulsan Uni.)
Pyo, Youngduck (Efficiency Department, Korea Institute of Energy Research)
Lee, Youngjae (Efficiency Department, Korea Institute of Energy Research)
Suh, Hocheol (R&D Center, Sejong Industrial Co. Ltd.)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.23, no.5, 2012 , pp. 530-537 More about this Journal
Abstract
This work experimentally investigates that Diesel-DME blended fuel influences combustion characteristics and emissions (NOx, CO, HC, smoke) in a single-cylinder DI diesel engine. Diesel is used as a main fuel and DME is blended for the use of its quick evaporating characteristics. Diesel and DME are blended by the method of weight ratio. Weight ratios for Diesel and DME are 95:5 and 90:10 respectively and the both ratios have been used altogether in blended fuel. The experiments are conducted in this study single cylinder engine is equipped with common rail and injection pressure is 700 bar at 1200 rpm. The amount of injected fuels is adjusted to obtain the fixed input calorie value as 972.2 J/cycle in order to compare with the fuel conditions. DME is compressed to 15 bar by using nitrogen gas thus it can be maintained the liquid phase. In this study, different system compared others paper is common rail system, also there is combustion and emission about compared DME and diesel fuel. It is expected to be utilized about blended fuel.
Keywords
DME; Blended fuel; Mixing ratio; Compression ignition engine; Reactivity;
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