Numerical modeling of flow through an industrial burner orifice

Reis, Luiz Carlos B. S.; Carvalho, João Andrade de; Nascimento, Marco A. R.; Rodrigues, L. O.; Dias, Fagner Luis Goulart; Sobrinho, Pedro Magalhães

doi:10.1016/j.applthermaleng.2014.02.036

Cited by 25 publications

(5 citation statements)

References 21 publications

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“…And modeling, as well as analysis of complex ori ce meters, frequently involves CFD tools. [3]. A different study to explore oscillating air ow through a hole in a circular pipe using a standard single-hole ori ce meter and (CFD) measurements.…”

Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Numerical investigation of fluid flow simulation through a cylindrical shape orifice flow meter using Ansys-fluent software

Zema

2024

Preprint

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Orifices are typical flow meter used to measure fluid flow in industrial pipe work. The choice of an appropriate standard K-epsilon turbulence model is critical for achieving acceptable flow measurement accuracy in numerical simulations. This work offers a numerical investigation of fluid flow simulation in a cylindrical orifice using Ansys-fluent with turbulence modeling. It is used for continuous and incompressible flows. The computations were performed in three-dimensional axisymmetric flow, and the governing equations of the flow were determined using continuity and Navier-Stokes equations (NSEs). Furthermore, the simulation results in terms of velocity and pressure profiles are determined. Finally, CFx-Post simulations were used to determine the position of the vena contracta. The location and position of the vena contracta reveal that as the area ratio increases, the location of the vena contracta changes towards the orifice.

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Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Numerical investigation of fluid flow simulation through a cylindrical shape orifice flow meter using Ansys-fluent software

Zema

2024

Preprint

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“…Computational Fluid Dynamics simulations were also used to predict the burner orifi ce turbulent fl ow by Reis at el. 9 . Four different turbulence models: the standard, RNG, realizable k-ε and Reynolds Stress Model (RSM) were used to estimate pressure drop, velocity profi les and orifi ce discharge coeffi cient.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of a novel burner to combust anode exhaust gases of SOFC stacks

Pianko‐Oprych

Jaworski

2017

Polish Journal of Chemical Technology

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The aim of the present study was a numerical investigation of the efficiency of the combustion process of a novel concept burner under different operating conditions. The design of the burner was a part of the development process of a complete SOFC based system and a challenging combination of technical requirements to be fulfilled. A Computational Fluid Dynamics model of a non-premixed burner was used to simulate combustion of exhaust gases from the anode region of Solid Oxide Fuel Cell stacks. The species concentrations of the exhaust gases were compared with experimental data and a satisfactory agreement of the conversion of hydrocarbons was obtained. This validates the numerical methodology and also proves applicability of the developed approach that quantitatively characterized the interaction between the exhaust gases and burner geometry for proper combustion modelling. Thus, the proposed CFD approach can be safely used for further numerical optimisation of the burner design.

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“…al. numerically modeling the turbulent heating reaction in the reactor and reported that Realizable k-ε models which account for the effects of swirl have greater potential to predict more accurate predictions for swirling flows [14].…”

Section: Materials and Methods 21 Transport Equation For Standard K-εmentioning

confidence: 99%

“…The solid that remained unreacted is known as gasification char. Gasification char is the finer component of the gasifier solid residuals which is made up of unreacted carbon and varying proportions of siliceous ash [14]. The gas and liquid released by the gasification process are called syngas and tar, respectively [21].…”

Section: Gasification Characteristics Of Coalmentioning

confidence: 99%

CFD Simulation of Air-Piloted Downdraft Gasification Process: A Comparative Study Between Coal and Palm Kernel Shell as Feedstock

Mohd Dali,

Abd Rashid,

Ishak

et al. 2023

IJIE

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A fixed bed downdraft gasifier model based on computational fluid dynamic (CFD) framework was developed to investigate the influence of feedstock (palm kernel shell [PKS] and coal) on the quality of syngas produced via the gasification process. Euler–Euler approach was utilized in this study to describe the gas and solid phases. Realizable k-ε turbulence model was used to evaluate the constitutive properties of the dispersed phase and the gas phase behavior. This simulation model was validated by comparing the syngas composition of gasification simulation of coal with previous research, which yielded the overall accuracy result of 83.2%. This study also highlighted that PKS gasification produced 53.74% and 90.51% higher composition of H2and CO respectively as compared to coal gasification. Whereas coal gasification produced 81.35%, 71.31% and 52.29% higher composition of CH4, H2O and CO2respectively as compared to PKS gasification. Hence, PKS produced 66.2% higher combustible gas of H2and CO than coal. PKS is thus considered as a potential renewable feedstock for gasification process as an alternative to the non-renewable coal. In addition, PKS gasification produced 52.29% lesser composition of CO2as compared to coal gasification.

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Numerical modeling of flow through an industrial burner orifice

Cited by 25 publications

References 21 publications

WITHDRAWN: Numerical investigation of fluid flow simulation through a cylindrical shape orifice flow meter using Ansys-fluent software

WITHDRAWN: Numerical investigation of fluid flow simulation through a cylindrical shape orifice flow meter using Ansys-fluent software

Numerical investigation of a novel burner to combust anode exhaust gases of SOFC stacks

CFD Simulation of Air-Piloted Downdraft Gasification Process: A Comparative Study Between Coal and Palm Kernel Shell as Feedstock

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