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http://dx.doi.org/10.7842/kigas.2011.15.3.039

An Investigation on the Effect of Fuel Stratification of DME/n-Butane mixture on Reduction of Pressure Rise-Rate in HCCI Combustion  

Lim, Ock-Taeck (School of Mechanical and Automotve Engineering, Ulsan Univ)
Park, Kyu-Yeol (School of Mechanical and Automotve Engineering, Ulsan Univ)
Publication Information
Journal of the Korean Institute of Gas / v.15, no.3, 2011 , pp. 39-46 More about this Journal
Abstract
This study investigates the effects of the DME and n-Butane mixture and of the stratification on combustion characteristics of HCCI engine by chemical reaction calculation. First, the existing DME reaction scheme and n-Butane is combined to make new chemical reaction model, then validating the effectiveness of new scheme. Furthermore, this study verify the HCCI combustion characteristics according to the changes of DME and n-Butane mixture ratio, which shows different auto ignition characteristics. Finally, it confirms the effects of stratification of mixture fuel on the reduction of pressure rise rate.
Keywords
combustion; knocking; dme; hcci; n-butane; numerical analysis; pressure rise rate; stratification;
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