Numerical investigation of high temperature synthesis gas premixed combustion via ANSYS Fluent

Pashchenko, Dmitry

doi:10.1051/matecconf/201814503012

Cited by 6 publications

(2 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The main advantages of CFD modeling of flow dynamics in the packed bed are the low cost of the investigation in comparison with the experiments, as well as an evident visualization of the results. The different commercial and open‐source codes are applied for CFD simulation of flow in the packed bed, for example, ANSYS Fluent, Comsol Multiphysics, Autodesk Simulation CFD, OpenFOAM (open source), and so on.…”

Section: Introductionmentioning

confidence: 99%

Flow dynamic in a packed bed filled with Ni‐Al₂O₃ porous catalyst: Experimental and numerical approach

Pashchenko

2019

AIChE Journal

Self Cite

View full text Add to dashboard Cite

Numerical simulations and experiments have been carried out to explore the effect of particle shapes on the pressure drop and the loss factor in a packed fixed bed filled with a porous catalyst. The packed bed is presented by the Ni‐Al2O3 catalyst of the different shapes. The commercial program ANSYS Fluent is used for the analysis; more than 20 mln cells are used for computational fluid dynamics (CFD) modeling. The catalyst particles were set as a porous medium with the viscous resistance coefficients and the inertial resistance coefficients. The comparison of the pressure drops between the experimental and simulation results show a good correlation with the divergence of results <8%. To determine the effect of the porosity properties of the medium on the numerical results, two cases of CFD modeling were realized (with taking into account the porous medium properties and without it). The discrepancy between results increases with an increasing gas flow rate.

show abstract

Section: Introductionmentioning

confidence: 99%

Flow dynamic in a packed bed filled with Ni‐Al₂O₃ porous catalyst: Experimental and numerical approach

Pashchenko

2019

AIChE Journal

Self Cite

View full text Add to dashboard Cite

show abstract

“…The conservation of momentum equation can be defined for each axis as follows [ 18,19 ] :

ρ \frac{Δu}{Δt} goodbreak= \frac{\partial ((), τ_{xx} goodbreak- normalр)}{\partial x} goodbreak+ \frac{\partial τ_{yx}}{\partial y} goodbreak+ \frac{\partial τ_{zx}}{\partial z} goodbreak+ F_{mx} goodbreak= 0,

ρ \frac{normalΔ v}{normalΔ t} goodbreak= \frac{\partial ((), τ_{yy} goodbreak- normalр)}{\partial x} goodbreak+ \frac{\partial τ_{xy}}{\partial y} goodbreak+ \frac{\partial τ_{zy}}{\partial z} goodbreak+ F_{my} goodbreak= 0,

ρ \frac{normalΔ w}{normalΔ t} goodbreak= \frac{\partial ((), τ_{zz} goodbreak- normalр)}{\partial x} goodbreak+ \frac{\partial τ_{xz}}{\partial y} goodbreak+ \frac{\partial τ_{yz}}{\partial z} goodbreak+ F_{mx} goodbreak= 0 .

…”

Section: Methodsmentioning

confidence: 99%

Colourless distributed combustion effects on a pre‐mixed coke oven gas flame

Tasdemir,

Karyeyen

2023

Can J Chem Eng

View full text Add to dashboard Cite

Fuels consisting of high hydrogen concentration can be consumed under colourless distributed combustion (CDC) to suppress flashback tendency in premixed conditions. Higher NOX challenges can also be overcome through CDC. For those purposes, coke oven gas was consumed under CDC within the scope of this study. To achieve CDC, or diluents were introduced into the oxidizer so that oxygen concentration in the oxidizer would be decreased from 21% O2 to its lean blow‐off limits. Excess air ratios were determined as λ = 1.2 and λ = 1.5 along with a thermal power of 10 kW under premixed conditions. A commercial computational fluid dynamics code was used to predict temperature distribution and , CO, and emissions. 162‐step reactions created with GRI‐Mech 3.0 chemical kinetics was integrated to the eddy dissipation concept combustion model. The temperature and profiles predicted were compared with the experimental results. Consistency was achieved at ~95% for temperature profiles, and almost 100% for profiles between the measured and the predicted ones. According to the results, it is concluded that a more homogeneous temperature distribution with the ~21% decrease in the maximum temperature was observed, and there was about 96% decrease in level. It was also demonstrated that using as a diluent is more effective in terms of temperature distribution over the combustor and reduction, while dilution with is more effective in terms about 70% in decrease on CO.

show abstract

Carbon Nanostructure-based Glass Composites: A Review

Kaur

Bharj²,

Bharj³

2022

Trans Indian Inst Met

View full text Add to dashboard Cite

Numerical investigation of high temperature synthesis gas premixed combustion via ANSYS Fluent

Cited by 6 publications

References 8 publications

Flow dynamic in a packed bed filled with Ni‐Al₂O₃ porous catalyst: Experimental and numerical approach

Flow dynamic in a packed bed filled with Ni‐Al₂O₃ porous catalyst: Experimental and numerical approach

Colourless distributed combustion effects on a pre‐mixed coke oven gas flame

Carbon Nanostructure-based Glass Composites: A Review

Contact Info

Product

Resources

About

Numerical investigation of high temperature synthesis gas premixed combustion via ANSYS Fluent

Cited by 6 publications

References 8 publications

Flow dynamic in a packed bed filled with Ni‐Al2O3 porous catalyst: Experimental and numerical approach

Flow dynamic in a packed bed filled with Ni‐Al2O3 porous catalyst: Experimental and numerical approach

Colourless distributed combustion effects on a pre‐mixed coke oven gas flame

Carbon Nanostructure-based Glass Composites: A Review

Contact Info

Product

Resources

About

Flow dynamic in a packed bed filled with Ni‐Al₂O₃ porous catalyst: Experimental and numerical approach

Flow dynamic in a packed bed filled with Ni‐Al₂O₃ porous catalyst: Experimental and numerical approach