Results 21 to 30 of about 1,693,376 (277)

Measurement of turbulent flame speed of natural gas/air mixtures at elevated pressure [PDF]

open access: yes, 2010
Turbulent flame speeds were measured over a range of pressures to 0.8 MPa using a jet flow apparatus fired with a synthetic mixture representing a mid-European natural gas. The equivalence ratio empty set was 0.9.
Witton, John J., Li, L.
core   +1 more source

The “turbulent flame speed” of wrinkled premixed flames

open access: yesComptes Rendus. Mécanique, 2012
The determination of the turbulent flame speed is a central problem in combustion theory. Early studies by Damköhler and Shelkin resorted to geometrical and scaling arguments to deduce expressions for the turbulent flame speed and its dependence on turbulence intensity.
Moshe Matalon, CRETA, Francesco
openaire   +1 more source

Theoretical analysis of the conical premixed flame response to upstream velocity disturbances considering flame speed development effects

open access: yesPropulsion and Power Research, 2017
The effect of upstream velocity perturbations on the response of a premixed flame was investigated in terms of the flame transfer function dependency on excitation frequency.
Ghazaleh Esmaeelzade   +3 more
doaj   +1 more source

Experimental study on premixed flame acceleration in closed pipe [PDF]

open access: yes, 2013
An experimental study has been carried out to investigate the flame acceleration in closed pipe. A horizontal steel pipe, with 2 m long and 0.1 m diameter, giving length to diameter (L/D) ratio of 20 was used in this project.
M. Kasmani, R., Mat Kiah, M. H.
core   +1 more source

Influence of Local Accumulation of Polyethylene Dust Cloud on Flame Propagation

open access: yesChemical Engineering Transactions, 2019
The flame propagation characteristic of polyethylene dust cloud inside a semi-open tube is studied in virtue of high-speed photographing technology. The rules of the influence of initial distribution range of polyethylene dust cloud on flame speed and ...
Lei Pang   +4 more
doaj   +1 more source

An experimental study on flame geometry in wind-blown pool fires and a new dimensionless parameter

open access: yesCase Studies in Thermal Engineering, 2022
In order to study the relationship between wind speed and such combustion characteristics as pool fire flame length, tilt angle, combustion mass loss rate and heat release rate, a small round diesel pool fire with wind-blown experimental platform was ...
Jingwei Ji   +5 more
doaj   +1 more source

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

open access: yesSymposium (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.
C.K. Wu, C.K. Law
openaire   +1 more source

Experimental and numerical comparison of currently available reaction mechanisms for laminar flame speed in 70/30 (%vol.) NH3/H2 flames

open access: yesApplications in Energy and Combustion Science, 2023
To achieve net zero carbon emissions, ammonia is gaining traction as a promising alternative fuel. However, the combustion characteristics of ammonia need further investigation.
A ALNASIF   +6 more
doaj   +1 more source

The Supposed Law of Flame Speeds [PDF]

open access: yesNature, 1927
MR. A. G. WHITE, in his letter in NATURE of Jan. 8, p. 51, correctly recalls the fact, which we discussed fully in our original publications in theJournal of the Chemical Society, that deviations from the law of speeds may be expected if one of the combustible gases in a complex mixture interferes with the burning of another.
WM. PAYMAN, R. V. WHEELER
openaire   +2 more sources

A review of the research progress of ammonia combustion enhancement technology

open access: yes能源环境保护, 2023
Under the guidance of the "double carbon strategy", as a new type of zero-carbon fuel, ammonia has gradually attracted attention. To solve the issues of ignition, low flame speed, and narrow flammable range of ammonia combustion, from the basic ...
ZHANG Yu   +5 more
doaj   +1 more source

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