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Analysis of Combustion Characteristics for a Homogeneous Charge Compression Ignition Engine with Load Condition  

장시웅 (한양대학교 기계공학과 대학원)
이기형 (한양대학교 기계공학과)
이창식 (한양대학교 기계공학과)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.10, no.1, 2002 , pp. 17-23 More about this Journal
Abstract
In order to reduce exhaust emissions from diesel engine under wide operating range, an experimental study based on a new concept of combustion called HCDC(Homogeneous Charge Diesel Combustion) was conducted. In this concept, most of the fuel is supplied as premixed homogeneous charge and the rest is directly injected into a cylinder to ignite. In this study we compared combustion characteristics of an HCDC engine with those of conventional diesel engines. At high premixed fuel ratio and high load range, it was observed that premixed combustion heat release rate was low and diffusion combustion duration was shorten. from this experiment, it was found that NOx is reduced by the lower maximum temperature and soot is reduced by rapid combustion during diffusion combustion phase.
Keywords
Emission; HCDC; Premixed combustion; Diffusion combustion; Premixed fuel ratio;
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