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http://dx.doi.org/10.3795/KSME-B.2005.29.2.180

Stratified Degree Characteristics on Fuel Mixture According to Ambient Temperature and Pressure in a Constant Volume Combustion Chamber  

Lee Kihyung (한양대학교 기계공학과)
Lee Changsik (한양대학교 기계공학과)
Lee Changhee (한양대학교 대학원 기계공학과)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.29, no.2, 2005 , pp. 180-188 More about this Journal
Abstract
It is well known that a lean burn engine caused by stratified mixture formation has many kinds of advantages to combustion characteristics, such as higher thermal efficiency and lower CO, NOx levels than conventional homogeneous mixture combustion. Although this combustion can achieve low fuel consumption technology, it produces much unburned hydrocarbon and soot because of heterogeneous equivalence ratio in the combustion chamber. Therefore, the stratified mixture formation technology is very important to obtain the stable lean combustion. In this paper, fundamental studies for stratified combustion were carried out using a constant volume combustion chamber. The local effect of mixture formation according to control air-fuel distribution in the chamber was examined experimentally. In addition, the effect of turbulence on stratified charge combustion process was observed by schlieren photography. From this study, we found that the flame propagation speed increase with swirl flow and the swirl promotes the formation of fuel and air mixture.
Keywords
Constant Volume Combustion Chamber; Stratification Degree; Equivalence Ratio;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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