Effects of Di-n-butyl ether addition to turbulent toluene sooting flames

Jingjing Ye, Stephan Kruse, Paul Medwell, Zhiwei Sun, Bassam Dally, Heinz Pitsch

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper presents an investigation of the effects on soot formation and oxidation when adding di-n-butyl ether (DBE) to toluene flames. Experiments were performed on a Jet in Hot Coflow (JHC) burner, where a prevaporised toluene and DBE mixture, carried by nitrogen at varying volumetric ratios, are injected into a 1544-K vitiated coflow with 7.5% oxygen by volume. Four flames with different DBE to toluene ratios at constant Reynolds number of 10,000 and coflow conditions are investigated in this study. Centreline temperature using a thermocouple and planar soot volume fraction using laser-induced incandescence (LII) are reported and analysed. It is found that the addition of DBE significantly affected soot inception, growth, and oxidation. The mean soot volume fraction and total soot loading values decrease nearly linearly with DBE addition while the maximum peak soot volume fraction values reduction trend is second order polynomial.
Original languageEnglish (US)
Title of host publication11th Asia-Pacific Conference on Combustion, ASPACC 2017
PublisherCombustion Institute
StatePublished - Jan 1 2017
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2022-09-12


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