Results 1 to 10 of about 906,379 (184)

Numerical simulation of high pressure burner with partially premixed flame

CT&F - Ciencia, Tecnología y Futuro, 2011
In this paper we present the results of a 2D‑axisymmetric parametric study which simulates an atmospheric premixed burner with flame at high pressure, in which methane is burned. A total of 9 simulations are performed with different regulators openings of primary and secondary air.
Lezcano-Benítez, Juan-Camilo, Correa-Restrepo, Daniel, Amell-Arrieta, Andrés-Adolfo, Cadavid-Sierra, Francisco-Javier   +3 more
openaire   +4 more sources

Numerical investigation on combustion performances of premixed H2-air jet flames above a sudden expansion micro-nozzle

Case Studies in Thermal Engineering
Our previous study demonstrated that divergent micro-nozzles designed for H2-fueled domestic gas stoves can achieve a higher flame temperature than conventional straight micro-nozzles, but are more susceptible to flashback. To address this safety concern,
Bo Xu, Wanhao Liu, Aiwu Fan
doaj   +1 more source

Inquiry of pulsanting flames.

Revista Tecnologia, 2009
An experimental study has been conducted with the objective of investigating the effects of combustion driven acoustic oscillations in the emission rates of combustion gases, especially carbon monoxide and nitrogen oxides. The experiments were conducted
Daniel Silva Ferreira, Vitória Hirth Bastos, Pedro Teixeira Lacava, João Andrade de Carvalho Jr.   +3 more
doaj  

Soot and Flame Structures in Turbulent Partially Premixed Jet Flames of Pre-Evaporated Diesel Surrogates with Admixture of OME_n

Fluids
In this study, the soot formation and oxidation processes in different turbulent, pre-evaporated and partially premixed diesel surrogate flames are experimentally investigated.
Steffen Walther, Tao Li, Dirk Geyer, Andreas Dreizler, Benjamin Böhm   +4 more
doaj   +1 more source

Two recent developments in numerical simulation of premixed and partially premixed turbulent flames

Comptes Rendus. Mécanique, 2006
A subgrid scale closure for Large Eddy Simulation of premixed turbulent combustion (FSD-PDF) is proposed. It combines the Flame Surface Density (FSD) approach with a presumed Probability Density Function (PDF) of the progress variable that is used in flamelet chemistry tabulation.
Vervisch, Luc, Domingo, Pascale
openaire   +2 more sources

Combustion mechanism of propane-air swirling premixed flame near lean flammability limit

Journal of Thermal Science and Technology
This study investigated a premixed propane-air flame in a partially tapered swirl burner. Experimentally, we found that a flame resembling a morning glory flower formed at an equivalence ratio near the lean flammability limit.
Yuyang JIANG, Makihito NISHIOKA
doaj   +1 more source

Effects of Equivalence Ratio and Inlet Temperature on Combustion and NO_x Emissions of Partially Cracked Ammonia in a Cavity Micro-Combustor

Energies
This work numerically examines the premixed combustion of partially cracked ammonia/air in a cavity-stabilized micro-combustor. Effects of the equivalence ratio (Φ) and inlet temperature (Tin) on the combustion features, flame–wall heat transfer and ...
Mingming Fu, Haisheng Zhen, Zhilong Wei, Yongliang Xie   +3 more
doaj   +1 more source

Numerical Simulation of Swirl and Methane Equivalence Ratio Effects on Premixed Turbulent Flames and NOx Apparitions

Journal of Applied Fluid Mechanics, 2016
This paper presents a three dimensional numerical simulation of premixed methane-air low swirl stabilized flames. The computational domain has a simple geometry describing a LBS (low swirl burner) with 50mm of nozzle diameter. RANS Standard κ – ε model
sofiane ouali, halim bentebbiche, toufik belmerabet   +2 more
doaj  

Analysis of Highly CO₂-Diluted Oxy-propane Flames Stabilized over a Multihole Burner of a Model Gas Turbine Combustor. [PDF]

ACS Omega, 2022
Habib MA, Haque MA, Nemitallah MA, Abdelhafez A, Khalifa AE.   +4 more
europepmc   +1 more source

COMPARACIÓN DEL MUESTREO DE ESPECIES QUÍMICAS EN ZONAS REACTIVAS MEDIANTE EL USO DE SONDA CON Y SIN CUELLO SÓNICO COMPARISON OF SAMPLING CHEMICAL SPECIES IN REACTING ZONES USING PROBES WITHOUT SONIC NOZZLE

Ingeniare: Revista Chilena de Ingeniería, 2010
El análisis de los productos de combustión en las zonas de reacción y al interior de cámaras de combustión requiere, con respecto a las medidas efectuadas en chimeneas, de equipos y de métodos particulares de muestreo. Así por ejemplo, en las zonas donde
Francisco Cadavid, Julián Uribe, Andrés Amell   +2 more
doaj