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http://dx.doi.org/10.3795/KSME-B.2006.30.10.973

Study on Soot Primary Particle Size Measurement in Ethylene Diffusion Flame by Time-Resolved Laser-Induced Incandescence  

Kim Gyu-Bo (부산대학교 대학원 기계공학과)
Cho Seung-Wan (부산대학교 대학원 기계공학과)
Lee Jong-Ho (부산대학교 대학원 기계공학과)
Jeong Dong-Soo (한국기계연구원 엔진환경그룹)
Chang Young-June (부산대학교 기계공학부 기계기술연구소)
Jeon Chung-Hwan (부산대학교 기계공학부 기계기술연구소)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.30, no.10, 2006 , pp. 973-981 More about this Journal
Abstract
Recently there is an increasing interest in particulate matter emission because of new emission regulations, health awareness and environmental problems. It requires to improve particulate measurement techniques as well as to reduce soot emissions from combustion systems. As mentioned above, it is demanded that reduction techniques together with measurement techniques of exhausted particulate matters in combustion systems such as vehicles. However, measurement techniques of particulate matters should be prior to reduction techniques of that because it is able to know an increase and a decrease of exhausted particulate matters when measured particulate matters. Therefore, in this study, we report the measurement of soot primary-particle size using time-resolved laser induced incandescence (TIRE-LII) technique in laminar ethylene diffusion flame. As an optical method, laser induced incandescence is one of well known methods to get information for spatial and temporal soot volume fraction and soot primary particle size. Furthermore, TIRE-LII is able to measure soot primary particle size that is decided to solve the decay ate of signal S $(t_1)$ and S $(t_2)$ at two detection time. In laminar ethylene diffusion flame, visual flame height is 40 mm from burner tip and measurement points are height of 15, 20, 27.5, 30 mm above burner tip along radial direction. As increasing the height of the flame from burne. tip, primary particle size was increased to HAB(Height Above Burner tip)=20mm, and then decreased from HAB=27.5 mm to 30 mm. This results show the growth and oxidation processes for soot particles formed by combustion.
Keywords
Laser Induced Incandescence; Soot; Primary Particle Size; Diffusion Flame; Time Resolved; Ethylene;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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