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http://dx.doi.org/10.3795/KSME-B.2014.38.2.129

Estimation of the Exhaust Characteristics of Biodiesel Used in Diesel Engine  

Baek, Seok Heum (DNDE Engineering, Inc.)
Yoon, Jeong Hwan (Dept. of Mechanical Engineering, Dong-A Univ.)
Jung, Woo Sung (Dept. of Mechanical Engineering, Dong-A Univ.)
Ha, Hyeong Soo (Dept. of Mechanical Engineering, Dong-A Univ.)
Chung, Sung Sik (Dept. of Mechanical Engineering, Dong-A Univ.)
Yeom, Jeong Kuk (Dept. of Mechanical Engineering, Dong-A Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.38, no.2, 2014 , pp. 129-137 More about this Journal
Abstract
In this study, the characteristics of exhaust gas as a function of the biodiesel mixing ratio were investigated. Diesel and waste oil were used for preparing mixed fuel, and the ratios of the mixed fuel were varied in the BD3~BD100 range. The injection pressures(${\Delta}p_{inj}$) was considered as an experimental variable and was set to 400 bar, 600 bar, 800 bar, 1000 bar, and 1200 bar. Furthermore, for quantitatively analyzing the characteristics of exhaust gas(NOx and Soot), the concepts of Pearson correlation coefficient and Spearman rank-order correlation coefficient based on statistics were introduced. Consequently, it was found that the correlation of the emission of NOx and Soot is linear, and the Pearson and Spearman coefficients are -0.732 and -0.724, respectively, under all analysis conditions. Especially, for the injection pressure of 800 bar, a simultaneous reduction in NOx and Soot emission is possible by controlling the biodiesel mixing ratio. This is because the correlation coefficients of NOx and Soot emissions were nearly 0, as the Pearson correlation coefficient was -0.089.
Keywords
Biodiesel Fuel; Common Rail Diesel Engine; Pearson Correlation Coefficient; Spearman Rank-order Correlation Coefficient;
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Times Cited By KSCI : 8  (Citation Analysis)
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