Results 41 to 50 of about 26,480 (215)

Experimental Investigation of Air–Fuel Mixing Effects on Flame Characteristics in a Direct fired Burner

open access: yesEnergies, 2021
The length and pattern of air–fuel mixing plays a significant role in the uniformity, flame temperature, and emission characteristics, which can lead to a superior product quality in a non-oxidizing direct fired burner for a cold-rolled steel plate ...
Cheolwoo Lee, Insu Kim, Junggoo Hong
doaj   +1 more source

Thermal Characteristics Comparison between Normal Diffusion Flame and Concentric Inverse and Normal Diffusion Flame Burners in Ribbing Furnace [PDF]

open access: yesThe Egyptian International Journal of Engineering Sciences and Technology
This investigation is accomplished experimentally to study the use of two different shapes of annular-ribs (triangle and square shape) on the flowrate of heat transfer, and combustion characteristics for both normal diffusion NDB and concentric inverse ...
Ashraf Kotb, Hany Saad
doaj   +1 more source

Turbulent Premixed Flame Kernel Growth During The Early Stages Using Direct Numerical Simulation [PDF]

open access: yes, 2008
In this thesis Direct Numerical Simulation (DNS) is used to investigate the development of turbulent premixed flame kernels during the early stages of growth typical of the period following spark ignition.
Dunstan, T. D.
core  

Numerical investigation of forced ignition in laminar counterflow non-premixed methane-air flames

open access: yes, 2007
Simulations of forced ignition of non-premixed laminar counterflow flames are used to study the effect of strain rate on ignition success. A one dimensional calculation is performed, using detailed methane chemical kinetics and treating the spark as an ...
Richardson, E.S., Mastorakos, E.
core   +1 more source

On the Structure of Laminar Diffusion Flames. [PDF]

open access: yes, 1963
The structure of laminar diffusion flames is analyzed in the limiting case of large, although finite, reaction rates. It is shown that the the chemical reaction takes place only in a very thin region or "chemical boundary layer" where convection effects may be neglected. Then the temperature and mass fraction distributions within the reaction zone are
openaire   +3 more sources

Advanced Optical and 3D Reconstruction Diagnostics for Combustion and Fluids Research [PDF]

open access: yes, 2012
Imaging based optical diagnostics have played an important role in combustion and fluids studies. However, most imaging techniques are two dimensional.
Wang, Qian
core  

On Classical Solutions for A Kuramoto–Sinelshchikov–Velarde-Type Equation

open access: yesAlgorithms, 2020
The Kuramoto–Sinelshchikov–Velarde equation describes the evolution of a phase turbulence in reaction-diffusion systems or the evolution of the plane flame propagation, taking into account the combined influence of diffusion and thermal conduction of the
Giuseppe Maria Coclite, Lorenzo di Ruvo
doaj   +1 more source

Measurement of PAH and soot of diffusion flames in a triple port burner [PDF]

open access: yes, 2013
In this study, we measured PAH and soot in a triple port burner. The coannular burner consists of three concentric tubes, where air flows in both inner (central) and outer tubes, and fuel flows in the annulus between these air tubes. Two diffusion flames
Yamamoto, Kazuhiro, Takemoto, Masahiro
core   +1 more source

Flame Structure and Flame–Flow Interaction in a Centrally Staged Burner Featuring a Diffusion Pilot

open access: yesAerospace
The pilot flame serves as the primary anchor for global flame stabilization in a centrally staged combustor. In engineering practice, it typically operates in the diffusion mode.
Weishu Mo   +4 more
doaj   +1 more source

Flow Characterisation of Flames in an Acoustically Excited Chamber [PDF]

open access: yes, 2012
Flame-acoustic wave interactions have been studied widely in the combustion community; however the whole physicochemical mechanism is still not clear.
Chen, Li-Wei
core  

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