Modeling the autoignition of fuel blends with a multistep model

Elisa Toulson, Casey M. Allen, Dennis J. Miller, Joanna McFarlane, Harold J. Schock, Tonghun Lee

Research output: Contribution to journalArticle

  • 4 Citations

Abstract

There is growing interest in using biodiesel in place of or in blends with petrodiesel in diesel engines; however, biodiesel oxidation chemistry is complicated to directly model and existing surrogate kinetic models are very large, making them computationally expensive. The present study describes a method for predicting the ignition behavior of blends of n-heptane and methyl butanoate, fuels whose blends have been used in the past as a surrogate for biodiesel. The autoignition is predicted using a multistep (8-step) model in order to reduce computational time and make this a viable tool for implementation into engine simulation codes. A detailed reaction mechanism for n-heptane-methyl butanoate blends was used as a basis for validating the multistep model results. The ignition delay trends predicted by the multistep model for the n-heptane-methyl butanoate blends matched well with that of the detailed CHEMKIN model for the majority of conditions tested.

LanguageEnglish (US)
Pages632-639
Number of pages8
JournalEnergy and Fuels
Volume25
Issue number2
DOIs
StatePublished - Feb 17 2011

Profile

Biofuels
Heptane
Biodiesel
Ignition
Diesel engines
Engines
Oxidation
Kinetics
n-heptane

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Energy Engineering and Power Technology
  • Fuel Technology

Cite this

Modeling the autoignition of fuel blends with a multistep model. / Toulson, Elisa; Allen, Casey M.; Miller, Dennis J.; McFarlane, Joanna; Schock, Harold J.; Lee, Tonghun.

In: Energy and Fuels, Vol. 25, No. 2, 17.02.2011, p. 632-639.

Research output: Contribution to journalArticle

Toulson, Elisa ; Allen, Casey M. ; Miller, Dennis J. ; McFarlane, Joanna ; Schock, Harold J. ; Lee, Tonghun. / Modeling the autoignition of fuel blends with a multistep model. In: Energy and Fuels. 2011 ; Vol. 25, No. 2. pp. 632-639
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