RUS  ENG
Full version
JOURNALS // Fizika Goreniya i Vzryva // Archive

Fizika Goreniya i Vzryva, 2018 Volume 54, Issue 2, Pages 3–14 (Mi fgv485)

This article is cited in 15 papers

Comparative analysis of the chemical structure of ethyl butanoate and methyl pentanoate flames

A. M. Dmitrievab, K. N. Osipovaab, D. A. Knyaz'kovac, I. E. Gerasimova, A. G. Shmakovab, O. P. Korobeinicheva

a Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch, Russian Academy of Science, Novosibirsk, 630090, Russia
b Novosibirsk State University, Novosibirsk, 630090, Russia
c Far Eastern Federal University, Vladivostok, 690091, Russia

Abstract: The structure of premixed ethyl butanoate/O$_2$/Ar flames stabilized on a flat burner at atmospheric pressure was studied by molecular beam mass spectrometry. Mole fraction profiles of the reactants, stable products, and basic intermediates and temperature profiles were obtained in flames of a stoichiometric $\phi$ = 1) and rich $\phi$ = 1.5) combustible mixtures. Experimental data and their analysis are presented in comparison with experimental and numerical data obtained earlier in methyl pentanoate flames. A simulation of the structure of ethyl butanoate flames was modeled using a detailed literature chemical-kinetic mechanism for the oxidation of esters fatty acids. The experimental profiles are compared with the calculated ones, and the transformation pathways of ethyl butanoate were analyzed. Based on a comparative analysis of experimental and calculated data, the main shortcomings of the model presented in the literature are identified and possible ways to improve the model are suggested. Features of decomposition of ethyl butanoate and methyl pentanoate are discussed based on an analysis of their transformation pathways; similarities and characteristic differences between their oxidation processes due to the different structure of the molecules of the original fuels are outlined.

Keywords: flame structure, molecular beam mass spectrometry, biofuel, combustion mechanism.

UDC: 536.46

Received: 25.04.2017
Revised: 10.07.2017

DOI: 10.15372/FGV20180201


 English version:
Combustion, Explosion and Shock Waves, 2018, 54:2, 125–135

Bibliographic databases:


© Steklov Math. Inst. of RAS, 2024