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Effects of Fuel Injection Timing on Exhaust Emissions Characteristics in Marine Diesel Engine  

임재근 (군산대학교 기관공학과)
최순열 (군산대학교 기관공학과)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.26, no.3, 2002 , pp. 307-312 More about this Journal
Abstract
A study on the exhaust emissions of marine diesel engine with various fuel injection timing is performed experimentally .In this paper, fuel injection timing is changed from BTDC $14^{\circ}$ to $20^{\circ}$ by $2^{\circ}$ intervals, the experiments are performed at engine speed 1800rpm and from load 0% to 100% by 25% intervals, and main measured parameters are fuel consumption rate, Soot, NOx, HC and CO emissions etc. The obtained conclusions are as follows (1) Specific fuel consumption is indicated the least value at BTDC $18^{\circ}$ of fuel injection timing and it is increased in case of leading the injection timing. (2) Soot emission is decreased in case of leading fuel injection timing and it is increased in the form of convex downwards with increasing the load. (3) NOx emission is increased in case of leading fuel injection timing and it is increased in the form of straight line nearly with increasing the load. (4) HC and CO emissions are decreased in case of leading fuel injection timing and they are changed in the form of convex downwards with increasing the load.
Keywords
Fuel Injection Timing; Specific Fuel Consumption(SFC); International Maritime Organization(IMO); NOx Emission; Soot Emission; HC Emission; CO Emission;
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