Turbulent Flame Speed Dependencies in Lean Methane-Air Mixtures under Engine Relevant Conditions
Sign Up to like & getrecommendations! Published in 2017 at "Combustion and Flame"
DOI: 10.1016/j.combustflame.2017.02.023
Abstract: Abstract Direct numerical simulations are carried out to study the behavior of turbulent flames propagating in lean methane-air mixtures of equivalence ratio 0.5 and for non-dimensional turbulence intensities (urms/SL) of 2-25. The turbulent Reynolds number… read more here.
Keywords: methane air; turbulent flame; flame; flame speed ... See more keywords
Self-acceleration and global pulsation in hydrodynamically unstable expanding laminar flames
Sign Up to like & getrecommendations! Published in 2018 at "Combustion and Flame"
DOI: 10.1016/j.combustflame.2018.05.025
Abstract: Abstract The cellularly unstable laminar flame is of fundamental and practical interest because of its intrinsic ability to accelerate without any external sources, as demonstrated previously for the spherically expanding flame. In this work, enriched… read more here.
Keywords: flame; flame speed; acceleration; laminar ... See more keywords
Development of an optically accessible apparatus to characterize the evolution of spherically expanding flames under constant volume conditions
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DOI: 10.1016/j.combustflame.2019.10.027
Abstract: Abstract Flame speed is extremely important as it affects the performances of many industrial systems. Moreover, its significance makes it a major target for the validation of kinetic mechanisms, which explains the necessity to provide… read more here.
Keywords: evolution; flame; flame speed; constant volume ... See more keywords
Monte-Carlo based laminar flame speed correlation for gasoline
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DOI: 10.1016/j.combustflame.2020.08.023
Abstract: Abstract Laminar flame speed and autoignition properties of gasoline play key role in the overall performance of spark-ignition and modern engines. Since gasoline is a complex fuel containing hundreds of species, it is not feasible… read more here.
Keywords: laminar flame; flame speed; gasoline;
Laminar flame speed of lignocellulosic biomass-derived oxygenates and blends of gasoline/oxygenates
Sign Up to like & getrecommendations! Published in 2017 at "Fuel"
DOI: 10.1016/j.fuel.2017.04.085
Abstract: Oxygenates present in partially hydro processed lignocellulosic-biomass pyrolysis oil to be component of second generation bio-fuels have been examined for their compact on the laminar flame speed of gasoline. Experiments were performed in an elevated… read more here.
Keywords: laminar flame; gasoline; flame speed; flame ... See more keywords
Dilution gas and hydrogen enrichment on the laminar flame speed and flame structure of the methane/air mixture
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DOI: 10.1016/j.fuel.2020.118794
Abstract: Abstract In this study, the mechanisms of the chemical, thermal and dilution effects of the CO2, H2O, N2 and EGR quantitatively analyzed on the laminar flame speed, laminar flame structure and key radicals profiles of… read more here.
Keywords: methane air; flame; flame speed; methane ... See more keywords
Effect of flame speed on knocking characteristics for SI engine under critical knocking conditions
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DOI: 10.1016/j.fuel.2020.118846
Abstract: Abstract Engine knock essentially involves the interplay between end-gas auto-ignition and primary flame propagation. However, literature shows inconsistent correlations between turbulent flame speed and knocking intensity. In this study, different levels of turbulent intensity were… read more here.
Keywords: speed; engine; flame speed; auto ignition ... See more keywords
Theoretical analysis for the centrifugal effect on premixed flame speed in a closed tube
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Hydrogen Energy"
DOI: 10.1016/j.ijhydene.2017.04.186
Abstract: Abstract A theoretical analysis is described to study the effect of centrifugal acceleration, especially high centrifugal acceleration, i.e. more than 200 times of gravity acceleration (200g), on the premixed flame speed in a rotating closed… read more here.
Keywords: closed tube; temperature; flame; flame speed ... See more keywords
A numerical study of laminar flame speed of stratified syngas/air flames
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DOI: 10.1016/j.ijhydene.2018.03.167
Abstract: Abstract Numerical simulations are performed to study the flame propagation of laminar stratified syngas/air flames with the San Diego mechanism. Effects of fuel stratification, CO/H2 mole ratio and temperature stratification on flame propagation are investigated… read more here.
Keywords: stratified syngas; flame; flame speed; laminar flame ... See more keywords
Measurement of the adiabatic flame speed and overall activation energy of a methane enriched H2/CO/CO2/N2 low heating value mixture
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DOI: 10.1016/j.ijhydene.2020.07.200
Abstract: Abstract The objective of this work is to investigate the effect of the methane blending in the adiabatic laminar flame speed and overall activation energy of a CO/CO2 rich, low calorific value, syngas fuel premixed… read more here.
Keywords: activation energy; flame; energy; flame speed ... See more keywords
Investigation on the laminar flame speed of CH4/CO2/air mixture at atmospheric and high pressures using Schlieren photography
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DOI: 10.1016/j.ijhydene.2020.08.061
Abstract: Abstract In this paper, Schlieren photography is used to ascertain the laminar flame speed of landfill gas (LFG) mixture. The flame is generated by utilizing a spherical constant-volume combustion chamber. Besides, CHEMKIN package is used… read more here.
Keywords: laminar flame; flame speed; flammability; flame ... See more keywords