Laminar flame structure of ethyl pentanoate at low and atmospheric-pressure: Experimental and kinetic modeling study
Section snippets
Author contribution
A.M. Dmitriev: Conceptualization, Methodology, Investigation, Data curation, Validation, Visualization, Formal analysis, Writing - original draft, Writing - review & editing, K.N. Osipova: Data curation, Visualization, Formal analysis, A.G. Shmakov: Conceptualization, Methodology, Supervision, T.A. Bolshova: Visualization, Formal analysis, D.A. Knyazkov: Conceptualization, Methodology, Investigation, Writing - original draft, Writing - review & editing, P.A. Glaude: Conceptualization,
Experimental approach
Flame sampling is a challenging task because of the high temperature and species concentration gradients in the flame front. Studies of flame structures at atmospheric and elevated pressures are of high practical importance, however, low-pressure flame structure remains in demand. The main idea of studying low-pressure laminar flames is to stretch the flame zone to improve spatial resolution. In addition, low-pressure conditions significantly reduce the requirements for the pumping system. Both
Low-pressure flame
Low-pressure flat laminar flame of the EPE/O2/Ar mixture was investigated at the LRGP. Mole fraction profiles of 24 individual species were measured using GC analysis. Among them are C1–C4 hydrocarbons, aldehydes, alcohols, ketones, carboxylic acids, and carbon oxides. The species detected and their molecular structures are listed in Table 3.
Experimental and simulated mole fraction profiles of reactants (EPE, O2, Ar) and major flame products (H2, H2O, CO, CO2) are presented in Fig. 2. The
Conclusion
An updated chemical kinetic mechanism for EPE combustion was proposed in this work. The mechanism includes the most recent rate constants of the most important reactions, including their pressure dependencies, and it is certainly able to reproduce the main trends in the combustion kinetics of lighter ethyl esters with an alkyl chain from C0 to C5.
The mechanism was validated against the new experimental data reported in this paper on the chemical speciation of two laminar premixed stoichiometric
Declaration of competing interest
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Acknowledgements
D.A.K. gratefully acknowledges financial support from the Ministry of Science and Higher Education of the Russian Federation (project No075-15-2019-1878).
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