Results 1 to 10 of about 50,714 (273)

Validation of Combustion Models for Lifted Hydrogen Flame [PDF]

open access: yesE3S Web of Conferences, 2019
Within a Reynolds Averaged Numerical Simulation (RANS) approach for turbulence modelling, a computational investigation of a turbulent lifted H2/N2 flame is presented.
Cemal Benim Ali, Pfeiffelmann Björn
doaj   +1 more source

Direct spray combustion in a tubular flame burner toward fine particle synthesis

open access: yesJournal of Thermal Science and Technology, 2021
A tubular flame burner equipped with a two-fluid nozzle for liquid precursor injection was developed and applied to the synthesis of fine particles. A tubular flame was established based on the axial spray of ethanol as a liquid fuel from the two-fluid ...
Tomoyuki HIRANO   +3 more
doaj   +1 more source

Numerical Investigation of Ducted Fuel Injection Strategy for Soot Reduction in Compression Ignition Engine [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
The ducted fuel injection strategy is a method that significantly reduces soot emissions in direct injection compression ignition engines. Fuel is injected into the combustion chamber through a duct enhancing the air-fuel mixture.
R. Şener
doaj   +1 more source

Flow field and interaction of lifted flames in a triple port burner

open access: yesNihon Kikai Gakkai ronbunshu, 2014
In this study, we experimentally examined a combustion field in a triple port burner. There are four flame configurations, consisting of attached flames, inner attached/outer lifted flames, inner lifted/outer attached flames, and twin lifted flames ...
Kazuhiro YAMAMOTO   +3 more
doaj   +1 more source

Experimental Investigation on the Effects of the Geometry of the Pilot Burner on Main Flame

open access: yesEnergies, 2021
Various kinds of pilot burners were experimentally investigated to examine the effects of their geometry and their location relative to the main burner of a real size combustor.
Cheol Woo Lee, In Su Kim, Jung Goo Hong
doaj   +1 more source

A Pressurized Vitiated Co-Flow Burner and Its Preliminary Application for a Methane Lifted Flame

open access: yesEnergies, 2018
A new pressurized vitiated co-flow burner (PVCB) was designed and built for the investigation of lifted flame properties and was supported by a vitiated co-flow of hot combustion products from a lean H2/air flame at a controllable pressure; its ...
Qiushi Qin   +5 more
doaj   +1 more source

LES-CMC simulations of different auto-ignition regimes of hydrogen in a hot turbulent air Co-flow [PDF]

open access: yes, 2013
Large-Eddy Simulation (LES) results in combination with first-order Conditional Moment Closure (CMC) are presented for a hydrogen jet, diluted with nitrogen, issued into a turbulent co-flowing hot air stream.
Mastorakos, E   +2 more
core   +1 more source

Improvement of Laminar Lifted Flame Stability Excited by High-Frequency Acoustic Oscillation

open access: yesJournal of Thermal Science and Technology, 2009
A high-frequency (20kHz) standing wave was applied to the unburned mixture upstream of a methane-air lifted jet flame using a bolt-clamped Langevin transducer (BLT) to improve stability.
Mitsutomo HIROTA   +3 more
doaj   +1 more source

Effect of a single nanosecond pulsed discharge on a flat methane–air flame

open access: yesApplications in Energy and Combustion Science, 2023
Successful implementation of plasma-assisted combustion in applied thermal processes heavily relies on how the plasma can be formed as it interacts with the reactive flow and what the effects are of such a plasma on the combustion process.
Yupan Bao   +6 more
doaj   +1 more source

Mechanisms of flame stabilisation at low lifted height in a turbulent lifted slot-jet flame

open access: yesJournal of Fluid Mechanics, 2015
A turbulent lifted slot-jet flame is studied using direct numerical simulation (DNS). A one-step chemistry model is employed with a mixture-fraction-dependent activation energy which can reproduce qualitatively the dependence of the laminar burning rate on the equivalence ratio that is typical of hydrocarbon fuels. The basic structure of the flame base
Shahram Karami   +3 more
openaire   +2 more sources

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