Effect of butanol on the particle number emission in diffusion flame
ZHANG Kesong
DING Wenhao
CUI Fuxing
Abstract：To investigate the dilution effect of n-butanol on toluene and the influence of oxygen in n-butanol on particle number(PN),using n-heptane/toluene/n-butanol as fuel,a diffusion charging particle counter is used to measure PN in a natural convection diffusion flame.Firstly,the effect of toluene volume fraction in binary fuel without n-butanol on PN is studied,and the effect of dilution on PN is evaluated;then maintain the volume ratio of n-heptane to toluene at 83/17,study the PN generated by ternary fuel adding n-butanol,and evaluate the effect of oxygen on PN by the difference in particle number density between the binary and ternary fuel.The results indicate that the dilution effect has a greater effect on reducing PN.When the volume fraction of n-butanol is greater than 6%,oxygen in the fuel begins to promote particle oxidation.When the volume fraction is 13%,the effect of fuel oxygen on promoting particle oxidation is the greatest.
Keywords：n-butanolPNdiffusion flame
Publication Date：2025-01-30
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：5( 75-79 )