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http://dx.doi.org/10.3795/KSME-B.2004.28.1.001

The Effects of N2 Diluent and Preheated Air on Soot Emission in Laminar Diffusion Flames  

Jeong, Yong-Ki (부산대학교 대학원 기계공학과)
Lee, Jong-Ho (부산대학교 대학원 기계공학과)
Jeon, Chung-Hwan (부산대학교 기계공학부, 기계기술연구소)
Jang, Young-June (부산대학교 기계공학부, 기계기술연구소)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.28, no.1, 2004 , pp. 1-8 More about this Journal
Abstract
An study has been performed with axisymmetric coflow diffusion flames to investigate the influence of air-side fuel side dilution and initial preheated temperature on the soot formation in methan/air flames. Soot quantities are determined by using PLII(Planar Laser Induced Incandescence), such a $C_2$H$_2$ major species(CH$_4$, $O_2$, $N_2$) and temperature are simulated by chemkin code. The numerical analysis was performed with transport properties and detailed reaction mechanisms m axisymmetric coflow diffusion flames. The study of how flame temperature and $N_2$ dilution of air and fuel side influence the soot concentrations is focused. Soot concentrations results on PLII show that preheated temperature contributes to an increase in the soot volume fraction, and soot formation Is more productive to air side dilution than to fuel side dilution. $C_2$H$_2$ concentrations have a similar tendency to soot concentrations.
Keywords
Soot Formation; Air-Side Dilution; Fuel-Side Dilution; Dilution Fraction; PLII; Chemkin;
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