Experimental and modeling study of methyl trans-3-hexenoate autoignition

Scott W. Wagnon, Darshan Karwat, Margaret S. Wooldridge, Charles K. Westbrook

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

This work presents the results of an experimental and computational study of methyl trans-3-hexenoate autoignition. Experimental autoignition studies were conducted using the University of Michigan rapid compression facility. Pressure time histories were used to determine ignition delay times as a function of test gas composition and experimental conditions. The fuel/oxygen equivalence ratio and dilution level were φ = 0.3 and inert/O2 = 3.76 (mole basis). End of compression conditions targeted an average pressure of 10.5 atm and temperatures ranging from 884 to 1085 K. A correlation in Arrhenius form was developed by regression analysis of the experimental data, where the ignition delay time is τign (ms) = 1.4 × 10-6 exp[30 100/(R¯(cal mol-1 K-1)T)] with a R2 value of 0.99. Gas-sampling experiments were also conducted to measure stable intermediates formed during autoignition. A detailed reaction mechanism was developed and model predictions were compared to the experimental data. While ignition delay time predictions are in excellent agreement with the experimental data, the speciation results highlight uncertainties in the reaction chemistry of unsaturated esters and small hydrocarbon intermediates.

Original languageEnglish (US)
Pages (from-to)7227-7234
Number of pages8
JournalEnergy and Fuels
Volume28
Issue number11
DOIs
StatePublished - Nov 20 2014
Externally publishedYes

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ASJC Scopus subject areas

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

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