Results 91 to 100 of about 5,746 (302)

Burning velocity of premixed turbulent flames in the weakly wrinkled regime [PDF]

open access: yes, 2005
PhDTurbulent burning velocities have been measured for methane/air and ethylene/air planar flames stabilised in a wide-angled conical diffuser where the flow is decelerated axially.
Savarianandam, Vivek Ross
core  

Numerical study of the quenching of a laminar premixed hydrogen flame

open access: yesMATEC Web of Conferences, 2018
A numerical analysis of the quenching of a laminar, premixed hydrogen-air flame is presented. A global and a detailed reaction mechanism are considered.
Pfeiffelmann Björn, Benim Ali Cemal
doaj   +1 more source

Desenvolvimento de método de medição simultâneo de velocidade de chama laminar e energia de ativação aparente e aplicação em misturas combustíveis com baixo poder calorífico [PDF]

open access: yes, 2014
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2014.Syngas e biogás são combustíveis de baixo poder calorífico que podem ser obtidos a partir da biomassa ...
Francisco Júnior, Roberto Wolf
core  

Equivolumetric Evolution of Planar Curves

open access: yesAbstract and Applied Analysis, 2014
We present the equivolumetric evolution of planar curves, which is a new type of curvature dependent evolution for a flame propagation model. This evolution reflects the nonlinear contribution of the curvature of the front to the flame propagation speed.
Hwan Pyo Moon
doaj   +1 more source

Roles of displacement speed on evolution of flame surface density for different turbulent intensities and Lewis numbers in turbulent premixed combustion [PDF]

open access: yes, 2019
Direct numerical simulations (DNS) are conducted in 3D to investigate the evolution of flame surface density (FSD) in turbulent premixed combustion. A parametric study is per-formed with respect to turbulent intensity and Lewis number to investigate all ...
Han, I, Huh, KY
core   +1 more source

Study on suppression effect and mechanisms of phosphorus-containing recycling substance on flame propagation of methane/coal dust composite explosion

open access: yesMeikuang Anquan
Magnesium ammonium phosphate (MgNH4PO4·6H2O) is a phosphorus-containing blockage commonly found in sewage treatment pipelines. In order to study its suppression effect on the methane/coal dust composite explosion, magnesium ammonium phosphate was ...
Li LIU   +7 more
doaj   +1 more source

Propagation behaviors of twin premixed methane flame in a counterflow annular slot-burner under DC electric fields [PDF]

open access: yes, 2017
Under an electric field, hydrocarbon flames generate bidirectional ionic wind due to the movement of positive and negative ions to the cathode and the anode, respectively.
Cha, Min Suk, Yoon, Sung Hwan
core  

Influence of Flame Front Instability on Flame Propagation Behavior [PDF]

open access: yes, 2011
This paper discusses flame acceleration due to flame instability mechanisms. In particular, the diffusive-thermal instability and hydrodynamic instability mechanisms are considered.
Kenji Mukaiyama, Kazunori Kuwana
core   +1 more source

Heat Transfer Fluids as Co‐Diluents in Localized High‐Concentration Electrolytes for High‐Rate Lithium Metal Batteries With Enhanced Safety

open access: yesAngewandte Chemie International Edition, EarlyView.
Two fluorinated ethers, commonly used as heat‐transfer fluids, are explored as co‐diluents in localized high‐concentration electrolytes (LHCEs) for lithium metal‐based batteries. The best‐performing ternary diluent blend boosts ion mobility and cuts overvoltages, thereby improving Coulombic efficiency and cycle life at ≥1 mA cm−2 in zero‐excess pouch ...
Dominik Weintz   +11 more
wiley   +1 more source

Study on the significant effects of ignition energy and gas volume fraction on gas explosion pressure and flame propagation speed

open access: yesMeikuang Anquan
The maximum flame propagation speed, the peak pressure and the pressure rise rate of gas explosion were studied under the influence of two factors of ignition energy and gas volume fraction, by using the orthogonal experimental method in a closed ...
Liang ZHANG, Fangfang LAI, Jingde XU
doaj   +1 more source

Home - About - Disclaimer - Privacy