Results 21 to 30 of about 37,825 (166)

Investigation of the Effects of Plasma Discharges on Methane Decomposition for Combustion Enhancement of a Lean Flame

open access: yesEnergies, 2020
The present work focuses on the impact of dielectric barrier discharge (DBD) plasma actuators (PAs) on non-premixed lifted flame stabilization in a methane CH4-air Bunsen burner. Two coaxial DBD-PA configurations are considered.
Maria Grazia De Giorgi   +4 more
doaj   +1 more source

Study on flame stability in oxygen-enriched ammonia/N2/O2 laminar diffusion flame

open access: yesNihon Kikai Gakkai ronbunshu, 2018
Ammonia is regarded as one of the alternative fuels because CO2 is not emitted during the combustion process of ammonia. The physical properties of ammonia are suitable for transportation and storage as a “hydrogen carrier”.
Yohei ISHIKAWA   +6 more
doaj   +1 more source

Characteristics of Flame Stability and Gaseous Emission of Bio-Crude Oil from Coffee Ground in a Pilot-Scale Spray Burner

open access: yesEnergies, 2020
Coffee ground has been recently considered as a new biomass resource in relation to the increasing coffee consumption worldwide. The bio-crude oil can be produced by fast pyrolysis of coffee ground, and it has advantages of larger heating values in ...
Sang Kyu Choi   +4 more
doaj   +1 more source

Heavy metal free thermal stabilizing-flame retarding modifier for plasticized poly(vinyl chloride)

open access: yesMaterials Research Express, 2020
Our research aimed to find a new material that can be an efficient heavy metal free flame retardant for plasticized poly(vinyl chloride) comparable to the conventional flame retardants.
Ali I Al-Mosawi, Kálmán Marossy
doaj   +1 more source

Experimental Investigation of Cavity Flame Characteristics for Variable-Angle Dual Injection in a Ma = 1.6 Supersonic Combustor

open access: yesAerospace
Robust flame stabilization in low-Mach, low-enthalpy supersonic combustors is a core bottleneck for turbine-based combined cycle (TBCC) mode transition. Existing studies mainly focus on single-injector configurations, while the injection angle modulation
Lantian Li, Jianhan Liang
doaj   +1 more source

One-dimensional flame instability and control of burning in fire-chamber

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2015
The flame stability with regard to one-dimensional exponential perturbations both for the combustion in the fire-chamber and the flame propagating in closed tubes or chambers is investigated. It is proved that both stability and instability are possible
Віктор Едуардович Волков
doaj   +7 more sources

Stability of non-premixed turbulent methane flames: Numerical simulations of the critical diameter and flame stability limits

open access: yesFuel Processing Technology
A Computational Fluid Dynamics (CFD) model is developed and validated against experimental data to predict the critical diameter and stability limits of non-premixed turbulent methane flames.
Mina Kazemi   +2 more
doaj   +1 more source

Effect of N2 Replacement by CO2 in Coaxial-Flow on the Combustion and Emission of a Diffusion Flame

open access: yesEnergies, 2018
In this study, a double concentric burner burning methane with an annular coaxially-flowing oxidizer was adopted to operate the diffusion flame in lifted flame regime. The effects of coaxial-flow velocity, coaxial-flow composition variation through total
Haisheng Zhen, Zhilong Wei, Zhenbin Chen
doaj   +1 more source

Stabilization of Adiabatic Premixed Laminar Flames on a Flat Flame Burner

open access: yesCombustion Science and Technology, 1993
A simple analysis and measurements are presented, which show that adiabetic premixed Laminar flames can be stabelized on aflat flame burner, especially designed for this purpose. The physical properties of these flames are identical to those of flat freely propagating flames.
Goey, de, L.P.H.   +2 more
openaire   +1 more source

Simulation and Research of Methane Premixed Combustion Characteristics Based on Constant Volume Combustion Chamber with Different Ignition Modes

open access: yesEnergies, 2023
Dual spark plug ignition can accelerate the burning velocity of nature gas and improve the engine performance. However, the mechanism between the two flames and the disturbance characteristics of flame to flow field during the combustion process under ...
Yue Wang   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy