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http://dx.doi.org/10.3795/KSME-B.2010.34.10.941

Effects of Soybean Biodiesel Fuel on Exhaust Emissions in Compression Ignition Combustion  

Han, Man-Bae (Dept. of Mechanical and Automotive Engineering, Keimyung Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.34, no.10, 2010 , pp. 941-946 More about this Journal
Abstract
This study aims to investigate the effects of soybean biodiesel fuel on exhaust emissions with regards to two combustion modes: conventional combustion(existence of PM-NOx trade-off behavior) and low temperature combustion(LTC) in a 1.7 L common rail direct injection diesel engine. As compared to conventional combustion, LTC was achieved by adopting a heavier exhaust gas recirculation and strategic injection parameter optimization. Two sets of fuels, i.e. ultra low sulfur diesel(ULSD) and 20% volumetric blends of soybean biodiesel with ULSD(B20) were used. Regardless of the fuel type, in LTC the simultaneous reduction of PM and NOx was observed and both levels were significantly lower than in case of conventional combustion. Under the given engine operating condition in the case of conventional combustion, B20 produced less PM and more NOx than ULSD. In the case of LTC combustion, B20 produced more PM and NOx than ULSD.
Keywords
Low Temperature Combustion; Ultra Low Sulfur Diesel Fuel; Soybean Biodiesel Fuel;
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