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A Study on Measurements of PM Size in a Single Cylinder Common-rail Diesel Engine Exhaust using LII Method  

Chun, Hong-Sik (Graduated School of Department of Mechanical Engineering, Yonsei University)
Kim, Hui-Jun (Graduated School of Department of Mechanical Engineering, Yonsei University)
Ryu, Hoon-Chul (Graduated School of Department of Mechanical Engineering, Yonsei University)
Park, Jong-Il (Graduated School of Department of Mechanical Engineering, Yonsei University)
Hahn, Jae-Won (Department of Mechanical Engineering, Yonsei University)
Chun, Kwang-Min (Department of Mechanical Engineering, Yonsei University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.14, no.3, 2006 , pp. 95-102 More about this Journal
Abstract
Recently particulate matter(PM) emission regulations are becoming more strict for diesel engines. There is increasing interest for measuring not only concentration but also size of the particles. Laser-induced incandescence (LII) has emerged as a promising technique for measuring particle volume fraction and size. In this study, the Simple Time Resolved-LII method was applied to exhaust of Ethylene diffusion flame and diesel engine exhaust for measuring soot and PM size. The particle size data from LII technique were calibrated using Field Emission Scanning Electron Microscope(FE-SEM) and Transmission Electron Microscope(TEM) photographs. In diesel engine experiments for particle size measurement, results from LII measurement are in a good agreement with those from TEM photograph, and difference between two measurements was less than 16%.
Keywords
Laser-induced incandescence; Particulate matter; Soot; Time resolved-LII; Simulated engine exhaust; Diesel engine; Primary particle;
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