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ABSTRACT
In this paper, a two-dimensional(2D) parallel optical extinction experiment system was adopted. The ethanol gasoline was selected as the fuel, which was blended with 20% ethanol. The laminar diffusion combustion was selected as the combustion mode to test the soot volume fraction (SVF). The results showed that the SVF was 0 in the range of 0 ~ 7 mm flame height. It rose up firstly and then decreased from 7 to 32 mm flame height, reaching the maximum of 14.6 × 10−6 at 16.6 mm. At the same time, the structure of the laminar diffusion flame was redefined in combination with the flame image. In the range of 0 ~ 1.5 cm flame radial, the SVF was 0.7 × 10−6, which belonged to the soot condensation forming zone. In the range of 1.5 ~ 4 mm, the SVF rose and then dropped sharply until it was completely burned, which belonged to the transition zone of soot formation oxidation.
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Shengli Wei
Dr. Shengli Wei is an associate professor at the University of Jiangsu. His research is focus on spray combustion, laser diagnosis, internal combustion engine performance and emission control.
Xiqian Zhao
Xiqian Zhao is a postgraduate student at Jiangsu University. His research focus is efficient combustion and emission control of internal combustion engines.
Rui Xu
Rui Xu is an engineer of Kailong High Technology Co., and his research focus is efficient combustion and emission control of internal combustion engines.
Chunhui He
Chunhui He is a postgraduate student at Jiangsu University. His research focus is efficient combustion and emission control of internal combustion engines.