Modeling soot formation in diesel-biodiesel flames

Alumah Arad, Eran Sher, Giora Enden

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

We propose a modified phenomenological model for soot formation that occurs during the combustion process of diesel-biodiesel blends. The diesel-biodiesel blend is represented by three generic fuel groups: aromatic, aliphatic, and ester fuels, such that the aromatic content of the diesel fuel and the oxygen content of the biodiesel fuel are considered quantitatively. The soot formation is evaluated for specific selected blends. The different oxidative reactivity between soot particles originating from diesel and biodiesel is accounted for via their oxidation rates. The use of the present phenomenological soot model is demonstrated by its implementation in a computational fluid dynamics (CFD) commercial code for the case of the standard smoke point lamp. Very good agreement was achieved between model predictions and experimental results in terms of maximal soot volume fraction (SVF) and its decrease when switching from plain diesel to a diesel-biodiesel blend.

Original languageEnglish
Pages (from-to)437-452
Number of pages16
JournalFuel
Volume206
DOIs
StatePublished - 1 Jan 2017

Keywords

  • Biodiesel
  • Blend
  • Diesel
  • Fuel
  • Model
  • Soot

ASJC Scopus subject areas

  • General Chemical Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry

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