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http://dx.doi.org/10.5916/jkosme.2014.38.6.681

Effect of fuel injection timing on the combustion and NOx emission characteristics in a single cylinder diesel engine applied with diesel fuel for naval vessel and biodiesel  

Lee, Hyungmin (Department of Naval Ship Propulsion System Engineering, Republic of Korea Naval Academy)
Abstract
The objective of this work presented here was focused on analysis of in-cylinder combustion characteristic, engine performance, and nitrogen oxides emission characteristic from marine gas oil for propulsion diesel engine of naval vessels and biodiesel with fuel injection timing in a single cylinder diesel engine. In addition, combustion process was analyzed with a high speed camera of marine gas oil and biodiesel fuel. Retarding the fuel injection timing from $BTDC25^{\circ}CA$ to $BTDC5^{\circ}CA$, in cylinder peak combustion pressure was gradually decreased, however, engine torque showed a tendency to increase. The highest nitrogen oxides level was measured at $BTDC15^{\circ}CA$, they were reduced at retarded and advanced condition on the basis of $BTDC15^{\circ}CA$. Comparing with combustion process of marine gas oil and biodiesel fuel at $BTDC5^{\circ}CA$, self-ignition timing of biodiesel fuel included oxygen content was faster than marine gas oil, however, a cautious observation indicates a slightly higher flame intensity for marin gas oil than biodiesel as a diffusion flame is developing.
Keywords
Marine gas oil; Biodiesel; High speed camera; Self-ignition timing; Flame intensity;
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Times Cited By KSCI : 4  (Citation Analysis)
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