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Experimental Study on the Emission Characteristics of Diesel, GTL, and their Blends with Biodiesel in a Diesel Engine  

Lee, Yong-Gyu (Engine Research Team, ECO Machinery Division, KIMM)
Moon, Gun-Feel (Department of Clean Environmental System, UST)
Jeong, Dong-Soo (Engine Research Team, ECO Machinery Division, KIMM)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.18, no.4, 2010 , pp. 140-146 More about this Journal
Abstract
An experimental study was carried out to investigate the emission characteristics for various alternative fuels in a 2.0 liter 4-cylinder turbo-charged diesel engine. The conventional diesel fuel, neat GTL (Gas to Liquid), blends of diesel and biodiesel(BD20), and blends of GTL and biodiesel(G+BD20 and G+BD40) were applied, and their emission characteristics were compared at various steady-state engine operating conditions. A noticeable reduction of exhaust emissions compared to conventional diesel fuel, except for NOx emission, was observed for G+BD40, where there is a maximum 30% averaged reduction for gaseous emissions (THC and CO) and 70% for PM mass concentrations. When comparing PM size distributions for biodiesel blended fuels, the PM number concentration in accumulation mode, where the diameter of PM is greater than 50 nm, decreased due to additional oxygen content in the biodiesel fuel; in nucleation mode, where the diameter of PM is less than 50nm, there was a slight increase or decrease in the PM number concentration depending on the amount of oxygen available in the combustion chamber.
Keywords
Alternative diesel fuel; GTL(Gas to Liquid); Biodiesel; Gaseous emissions; PM(Particulate Matters); Nucleation mode; Accumulation mode;
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Times Cited By KSCI : 2  (Citation Analysis)
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