Results 21 to 30 of about 23,690 (234)

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

open access: yesFuel 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   +1 more source

Small-scale Interaction of Turbulence with Thermonuclear Flames in Type Ia Supernovae [PDF]

open access: yes, 1999
Microscopic turbulence-flame interactions of thermonuclear fusion flames occuring in Type Ia Supernovae were studied by means of incompressible direct numerical simulations with a highly simplified flame description.
Eswaran V.   +7 more
core   +3 more sources

Evolution of ammonia reaction mechanisms and modeling parameters: A review

open access: yesApplications in Energy and Combustion Science, 2023
Ammonia (NH3) has been suggested as a fuel to attain zero carbon emissions. However, dealing with ammonia needs careful studies to reveal its limits as a suitable and promising fuel for broad applications within large power requirements.
Alnasif A   +6 more
doaj   +1 more source

Numerical Analysis of the Combustible Properties of Sewage Sludge Gasification Gas

open access: yesChemical Engineering Transactions, 2015
Laminar flame speed is an important parameter of the combustion process. It plays a crucial role in issues connected with the flame stability. There are many experimental methods of determination laminar flame speed of gaseous fuels, nevertheless they ...
S. Werle
doaj   +1 more source

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

Turbulent flame propagation and combustion in spark ignition engines [PDF]

open access: yes, 1983
Pressure measurements synchronized with high-speed motion picture records of flame propagation have been made in a transparent piston engine. The data show that the initial expansion speed of the flame front is close to that of a laminar flame.
BERETTA, Gian Paolo   +2 more
core   +1 more source

Study on the propagation velocity of methane/air pleated flames based on image processing and fractal interpolation

open access: yesAIP Advances, 2021
A self-developed gas explosion experimental system was used to detonate methane/air mixtures of different concentrations by different ignition methods, and the propagation processes of spherical flames and irregular flames formed by the explosions were ...
Haiyan Wang   +5 more
doaj   +1 more source

Propagation of the First Flames in Type Ia Supernovae [PDF]

open access: yes, 2006
We consider the competition of the different physical processes that can affect the evolution of a flame bubble in a Type Ia supernovae -- burning, turbulence and buoyancy.
Bychkov V. V.   +4 more
core   +4 more sources

Experimental and numerical study of the accuracy of flame-speed measurements for methane/air combustion in a slot burner [PDF]

open access: yes, 2011
Measuring the velocities of premixed laminar flames with precision remains a controversial issue in the combustion community. This paper studies the accuracy of such measurements in two-dimensional slot burners and shows that while methane/air flame ...
Ferret, Bernard   +2 more
core   +1 more source

Extrapolation of laminar flame speeds from stretched flames: Role of finite flame thickness [PDF]

open access: yesProceedings of the Combustion Institute, 2017
Abstract Recognizing the persistent inaccuracy of existing linear and nonlinear expressions to extract laminar flame speeds from experimental data of stretched flame speeds, and the essential and independent role of the flame thickness, in addition to the laminar flame speed, in describing the coupled diffusive and reactive response of the laminar ...
Wenkai Liang, Fujia Wu, Chung K. Law
openaire   +1 more source

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