Study of the influence of biodiesel in soot emissions of diesel laminar diffusion flames

Abstract

In this work the presence of soot in laminar diffusion of diesel and blends diesel/biodiese flames were investigated in the following proportions: 5, 10, 20 and 50% of biodiesel. The techniqu of laser-induced incandescence (LII) was used for the soot detection. Horizontal mapping wer performed at two heights (80 and 260 mm above the burner) to investigate the distribution of soo along the studied flames. The experiment was performed with a pulsed Nd:YAG laser with th wavelength of 1064 nm. The results have shown that the soot emission decreases as the amoun of biodiesel increases in the blends.