Kinetic study of ester biofuels in flames

Student thesis: Science thesisPhD thesis

Abstract

Global progress all over the world requires a variety of clean energy sources. Liquid ester-based biofuels seem to be very effective in this context since they are easy to use in modern vehicles, they can be produced from a variety of renewable resources, and they provide environmentally friendly combustion characteristics. In this regard, fatty acid ethyl esters (FAEEs) are considered as a promising class of biofuels.
The main goal of this thesis was to develop an updated chemical kinetic mechanism of combustion of light FAEEs up to ethyl pentanoate and validate it against the new experimental data on chemical speciation in low and atmospheric pressure premixed laminar flames. The flames fueled by three FAEEs, ethyl acetate, ethyl butanoate and ethyl pentanoate, were investigated by means of molecular-beam mass-spectrometry and gas-chromatography. More than 40 stable and intermediate species including radicals were detected and quantified in the flames. A comprehensive analysis of the developed mechanism was performed.
The thesis consists of 3 chapters. In the first chapter a review of literature is presented. The most important experimental and theoretic studies on FAEEs are discussed. The second chapter presents an overview of experimental and simulation methods used in the work. Details on the mechanism development are also provided in this part. The last chapter present experimental and modeling results on the esters studied in comparison with the literature kinetic mechanisms.
Date of Award18 Dec 2020
Original languageEnglish
Awarding Institution
  • Universite de Lorraine
SupervisorP. A. Glaude (Supervisor) & Денис Анатольевич Князьков (Supervisor)

Keywords

  • Combustion
  • Biofuel
  • Premixed flame
  • Chemical kinetic modeling
  • Detailed chemical kinetic mechanism
  • Molecular beam mass spectrometry
  • Gas chromatography

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