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http://dx.doi.org/10.3795/KSME-B.2010.34.12.1035

Study on the Effect of Thermal Stratification on DME/n-Butane HCCI Combustion  

Lim, Ock-Taeck (School of Mechanical and Automotive Engineering, Univ. of Ulsan)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.34, no.12, 2010 , pp. 1035-1042 More about this Journal
Abstract
The thermal stratification effect has been thought as one of the way to avoid dramatically generating the heat from HCCI combustion. We investigate the effect of thermal stratification on HCCI combustion fueled by DME and n-Butane. The thermal stratification occurs in a combustion chamber of a rapid compression machine with premixture by buoyancy effect that is made of fuel and air. The premixture is then adiabatically compressed, and during the process, the in-cylinder gas pressure is measured and two-dimensional chemiluminescence images are prepared and analyzed. Under the thermal stratification, the LTR starting time and the HTR starting time are advanced than that of homogeneous case. Further, the LTR period and the luminosity duration under homogeneous conditions are shorter than the corresponding quantities under stratified conditions. Additionally, under stratified conditions, the brightest luminosity intensity is delayed longer than that of homogeneous condition.
Keywords
Knocking; Rapid Compression Machine; Homogeneous Charge Compression Ignition; Thermal Stratification; Two-Dimensional Chemiluminescence;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 0
연도 인용수 순위
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