Results 121 to 130 of about 23,843 (232)

STUDY OF THE EFFECT OF ELEVATED TEMPERATURES ON THE LAMINAR BURNING VELOCITY OF PROPANE-AIR MIXTURES

Diyala Journal of Engineering Sciences, 2015
Laminar burning velocities were obtained at wide equivalence ratios of propane –air mixtures. The effect of elevated temperatures was also analyzed. It was found that the laminar burning velocity is increased with the increase of temperature at constant
Miqdam Chaichan
doaj  

A length-scale analysis of instabilities in high pressure explosion flames, [PDF]

, 2010
Cellular flame structure in high pressure iso-octane-air explosion flames, obtained in the Leeds combustion bomb, was investigated using Schlieren cinematography and OH laser induced fluorescence.
Lockett, R. D.
core  

Drawing the line between explosion and collapse in electron-capture supernovae

Astronomy & Astrophysics
Context. Electron-capture supernovae (ECSNe) are commonly thought to result in a collapse to a neutron star. Recent work has shown that, under certain conditions, a thermonuclear explosion is also a possible outcome. The division between the two regimes,
Holas Alexander, Jones Samuel W., Röpke Friedrich K., Pakmor Rüdiger, Fakiola Christina, Leidi Giovanni, Hirschi Raphael, Shen Ken J.   +7 more
doaj   +1 more source

STUDY OF THE EFFECT OF ELEVATED PRESSURES ON THE LAMINAR BURNING VELOCITY OF PROPANE-AIR MIXTURES

Diyala Journal of Engineering Sciences, 2015
Laminar burning velocities were obtained for three specific equivalence ratios of propane –air mixtures (Ø= 0.8, 1.0 & 1.3). The effect of elevated pressures at variable initial temperatures was also analyzed.
Miqdam T Chaichan
doaj  

Combustion mechanism study of ammonia/n-dodecane/n-heptane/EHN blended fuel

Applications in Energy and Combustion Science
Due to the challenges of ammonia, such as high ignition energy and slow flame propagation speed, the utilization of ammonia in engines might necessitate the implementation of dual-fuel combustion modes along with the use of cetane improvers.
Tengda Song, Can Wang, Mingsheng Wen, Haifeng Liu, Mingfa Yao   +4 more
doaj   +1 more source

Unlocking clean gas with hydrogen: A combustion optimization study

Results in Engineering
Combining hydrogen with natural gas, a hydrocarbon fuel, is seen as a critical step towards reaching net-zero emissions and creating a cleaner environment. To tackle climate change, major organizations like the U.S.
M. Aravindan, G. Praveen Kumar, Rajmohan Muthaiah, Madhan K. Arulanandam, Neelam Sheoran, Nirmal Waykole, Pawan Sharma, Asheesh Anand, Sudharsan Kalidoss, Gnyanesh Trivedi   +9 more
doaj   +1 more source

LAMINAR FLAME SPEED MODEL AT THE INITIAL STAGE OF FORMATION DIFFUSION FLAME

Kufa Journal of Engineering, 2016
This work paid special attention on the laminar flame speed in a piloted methane-air in jet diffusion flame due to the strong nonlinearity of chemical reaction process where an extension for the unsteady laminar flamelet model is required. The purpose for doing that is set for two folds.
openaire   +1 more source

Explosion characteristics and overpressure prediction of hydrogen-doped natural gas under ambient turbulence conditions

Case Studies in Thermal Engineering
Explosions of combustible gases under ambient turbulence exhibit complex flame propagation and overpressure evolution characteristics, posing challenges to explosion safety assessments.
Ranran Li, Zhongmo Xu, Mingzhi Li, Shuhong Li, Zhenyi Liu, Zihao Xiu, Qiqi Liu   +6 more
doaj   +1 more source

GENERATION OF PREMIX LAMINAR FLAME SPEED LIBRARY

, 2021
openaire   +2 more sources

Direct simulation of compressible reacting flows [PDF]

A research program for direct numerical simulations of compressible reacting flows is described. Two main research subjects are proposed: the effect of pressure waves on turbulent combustion and the use of direct simulation methods to validate flamelet ...
Poinsot, Thierry J.
core   +1 more source