Results 21 to 30 of about 3,256 (259)
Flame Stabilization and Blow-Off of Ultra-Lean H2-Air Premixed Flames
Energies, 2021 The manner in which an ultra-lean hydrogen flame stabilizes and blows off is crucial for the understanding and design of safe and efficient combustion devices.
Faizan Habib Vance +3 more
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Buoyant Unstable Behavior of Initially Spherical Lean Hydrogen-Air Premixed Flames
Energies, 2014 Buoyant unstable behavior in initially spherical lean hydrogen-air premixed flames within a center-ignited combustion vessel have been studied experimentally under a wide range of pressures (including reduced, normal, and elevated pressures).
Zuo-Yu Sun +4 more
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Frontiers in Mechanical Engineering, 2023 In the gas turbine framework, the adoption of carbon capture and storage (CCS) systems coupled with strategies to improve the exhaust CO2 content is a promising technology to abate the carbon footprint of such machines.
S. Castellani +2 more
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Experimental Study of Stretched Premixed Flame Stabilized in a Flat Channel near a Heated Wall
Metals, 2023 In this work, the behavior of a lean premixed stretched flame stabilized in a flat channel near a heated wall was studied. Dependences of the flame front position on the stretch rate parameter at temperatures of the heated wall of 1000 and 1200 K and the
Sergey Mokrin +2 more
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A Mass-Based Definition of Flame Stretch for Flames with Finite Thickness
Combustion Science and Technology, 1997 The flame stretch concept is extended for the case of 3D instationary flames with finite flame front thickness. It is shown that additional contributions to the stretch rate appear apart from the terms which are usually used in flame studies. These extra terms are associated with variations in the mass density along the flame iso-contours and with ...
Goey, de, L.P.H. +1 more
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A review of laminar flame speeds of hydrogen and syngas measured from propagating spherical flames
Applications in Energy and Combustion Science, 2020 As promising alternatives to fossil fuels, hydrogen (H2) and syngas are playing important roles in the development and control of high-efficiency, low-emission engines.
Wang Han +3 more
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Flame stretching by electric field
Journal of Physics: Conference Series, 2019 Abstract The paper considers the issues related to the study of the mechanisms of controlling the combustion of hydrocarbon fuels by electric fields. It is shown that influence of weak electric field on combustion in laminar mode leads to a change in the degree of flame stretching (Karlovitz number).
A V Tupikin, V V Zamashchikov
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Deposition of graphenic nanomaterials from elevated temperature premixed stagnation flames
Applications in Energy and Combustion Science, 2023 The work examines the unique nanostructure of carbon nanoparticles deposited from sooting premixed flames with flame temperatures exceeding 2200 K.
Shruthi Dasappa, Joaquin Camacho
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On the determination of laminar flame speeds from stretched flames [PDF]
Symposium (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
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Effects of Electric Fields on the Combustion Characteristics of Lean Burn Methane-Air Mixtures
Energies, 2015 In this work, the effects of the electric fields on the flame propagation and combustion characteristics of lean premixed methane–air mixtures were experimentally investigated in a constant volume chamber.
Jianfeng Fang +4 more
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