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Effect of Operation Condition on the Characteristics of Combustion and Exhaust Emissions in a Gasoline Fueled HCCI Diesel Engine  

이창식 (한양대학교 기계공학부)
김명윤 (한양대학교 대학원)
황석준 (한양대학교 대학원)
김대식 (파라다이스 산업)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.12, no.1, 2004 , pp. 48-54 More about this Journal
Abstract
The purpose of this work is to investigate the effect of premixing condition on the combustion and exhaust emission characteristics in a HCCI diesel engine. To from homogeneous charge before intake manifold, the premixed gasoline fuel is injected into a premixed tank by fuel injection system and the premixed gasoline fuel is ignited by direct injected diesel fuel. Experimental result shows the NOx and soot emissions are decreased linearly with the increase of premixed ratio. In the case of intake air temperature $20^{\circ}C$ with light load, the specific fuel consumptions are increased with the rise of premixed ratio and HC and CO emissions are also increased. But the intake air heating can improve the specific fuel consumption at light load condition because increased air temperature promotes the combustion of premixed mixture. In the case of high intake air temperature with high load condition, premixed fuel is auto-ignited before diesel combustion and soot emission is increased.
Keywords
HCCI(Homogeneous Charge Compression Ignition); Premixed ratio; Combustion characteristics; Exhaust emissions;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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