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Curvature and confinement effects for flame speed measurements in laminar spherical and cylindrical flames [PDF]

open access: greenCombustion and Flame, 2013
This paper discusses methods used to obtain laminar flame speeds in spherical laminar premixed flames. Most recent studies express the laminar flame consumption speed as ρb/ρudR/dt, where R is the flame radius and ρb/ρu is the ratio of the burnt to the ...
Adrien Bonhomme   +2 more
core   +9 more sources

The adiabatic flame temperature and laminar flame speed of methane premixed flames at varying pressures [PDF]

open access: diamondActa Periodica Technologica, 2019
This paper studies the influence of equivalence ratio, pressure and initial temperature on adiabatic flame temperature and laminar flame speed of methane-air mixture.
Sakhrieh Ahmad
doaj   +2 more sources

Effect of CH4–Air Ratios on Gas Explosion Flame Microstructure and Propagation Behaviors [PDF]

open access: yesEnergies, 2012
To reveal the inner mechanism of gas explosion dynamic behavior affected by gas equivalent concentration, a high speed Schlieren image system and flow field measurement technology was applied to record the gas explosion flame propagation and flame ...
Ying Zhang, Yin Zhang, Xianfeng Chen
doaj   +4 more sources

On the determination of laminar flame speeds from stretched flames [PDF]

open access: greenSymposium (International) on Combustion, 1985
The effects of stretch on the determination of the laminar flame speed are experimentally studied by using the positively-stretched stagnation flame and negatively-stretched bunsen flame, and by using lean and rich mixtures of methane, propane, butane, and hydrogen with air whose effective Lewis numbers are either greater or less than unity.
Chunwei Wu, Chung K. Law
openalex   +3 more sources

Chemical kinetic model uncertainty minimization through laminar flame speed measurements. [PDF]

open access: yesCombust Flame, 2016
Laminar flame speed measurements were carried for mixture of air with eight C3-4 hydrocarbons (propene, propane, 1,3-butadiene, 1-butene, 2-butene, iso-butene, n-butane, and iso-butane) at the room temperature and ambient pressure. Along with C1-2 hydrocarbon data reported in a recent study, the entire dataset was used to demonstrate how laminar flame ...
Park O   +5 more
europepmc   +6 more sources

Laminar flame speed of ethanol/ammonia blends–An experimental and kinetic study

open access: goldFuel Communications, 2022
Blending bio-ethanol with ammonia is an interesting approach to reach carbon-neutrally combustion systems. As a fundamental parameter, laminar flame speed for different blends of ethanol/ammonia is explored using the spherical expanding flame technique ...
Pelé Ronan   +4 more
doaj   +2 more sources

Laminar flame speeds of stratified methane, propane, and n-heptane flames [PDF]

open access: greenCombustion and Flame, 2016
Abstract A numerical study on stratified flames of three hydrocarbon fuels, i.e., methane, propane and n-heptane, is conducted using a unsteady, compressible and reacting flow solver ASURF-Parallel. For each fuel, both fuel consumption speeds and flame front propagation speeds of a rich-to-lean stratified flame are compared to those of their ...
Xian Shi, Jy Chen, Yulin Chen
openalex   +3 more sources

LAMINAR FLAME SPEED OF SOY AND CANOLA BIOFUELS

open access: yesCT&F Ciencia, Tecnología & Futuro, 2012
In this article, the flame speed values determined experimentally for laminar premixed flames of the vapors of two biofuels in air are presented. The laminar flame speed is a fundamental thermochemical property of fuels, and is essential for analyzing ...
Juan-Sebastián Gómez-Meyer   +3 more
doaj   +4 more sources

In-Cylinder Laminar Flame Propagation Speed: Effect of Hydrogen And Hydrogen Rich Gas Addition [PDF]

open access: green, 2005
In this paper, the implication of various grades of hydrogen rich gas on the in-cylinder flame speed, and on the knock propensity, are discussed. The laminar flame propagation speed of methane with various grades of hydrogen-rich gas addition has been ...
L. Bromberg
openalex   +4 more sources

Experimental Study on the Effect of Nano Additives γAl2O3 and Equivalence Ratio to Bunsen Flame Characteristic of Biodiesel from Nyamplung (Calophyllum Inophyllum)

open access: yesAutomotive Experiences, 2021
Nano γAl2O3 has been one of the nanometal oxides that has improved the characteristics of biodiesel. The effect of γAl2O3 nanoparticles addition on premixed flame combustion is investigated with an experiment on the laminar flame speed of Calophyllum ...
Setyo Pambudi   +3 more
doaj   +1 more source

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