Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance

Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance

A computational fluid dynamics (CFD) study of a partial combustion lance (PCL) was performed using a hybrid scale adaptive simulation (SAS) in this work. In addition, the unsteady Reynolds-averaged NavierStokes(URANS) simulations using the standard k-ε (SKE), realizable k-ε (RKE) and renormalized (R...

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Main Authors: Law, Woon Phui, Jolius, Gimbun
Format: Article
Language:English
Published: AIDIC Servizi 2015
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/10215/
http://umpir.ump.edu.my/id/eprint/10215/
http://umpir.ump.edu.my/id/eprint/10215/
http://umpir.ump.edu.my/id/eprint/10215/1/Evaluation%20of%20the%20Unsteady%20Turbulence%20Modelling%20and%20Thermal%20Insulation%20on%20the%20Performance%20of%20Partial%20Combustion%20Lance.pdf
id ump-10215
recordtype eprints
spelling ump-102152019-10-03T08:09:20Z http://umpir.ump.edu.my/id/eprint/10215/ Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance Law, Woon Phui Jolius, Gimbun TP Chemical technology A computational fluid dynamics (CFD) study of a partial combustion lance (PCL) was performed using a hybrid scale adaptive simulation (SAS) in this work. In addition, the unsteady Reynolds-averaged NavierStokes(URANS) simulations using the standard k-ε (SKE), realizable k-ε (RKE) and renormalized (RNG)k-ε were performed for comparison purpose. Combustion was modelled using the species transport model, whereas the heat transfer was calculated using a combined convection-radiation boundary condition. Suitability of various gradient methods (i.e., Green-Gauss node-based, Green-Gauss cell-based and least squares cell-based) to discretize the convection and diffusion terms in the governing equations were assessed by comparing the CFD prediction with experimentally measured temperature. It was found that SAS provided a better prediction of the PCL temperature with about 5.1 % of error from the experimental data. The Green-Gauss node-based method showed a better agreement compared to the two cell-based gradient methods. Installation of thermal insulation increased the peak temperature by about 9.4 %. The finding in this work indicated that CFD model is useful for retrofitting study of an existing PCL. AIDIC Servizi 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/10215/1/Evaluation%20of%20the%20Unsteady%20Turbulence%20Modelling%20and%20Thermal%20Insulation%20on%20the%20Performance%20of%20Partial%20Combustion%20Lance.pdf Law, Woon Phui and Jolius, Gimbun (2015) Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance. Chemical Engineering Transactions, 45. pp. 817-822. ISSN 2283-9216 http://www.aidic.it/cet/15/45/137.pdf DOI:10.330 3/CET1545137
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Law, Woon Phui
Jolius, Gimbun
Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance
description A computational fluid dynamics (CFD) study of a partial combustion lance (PCL) was performed using a hybrid scale adaptive simulation (SAS) in this work. In addition, the unsteady Reynolds-averaged NavierStokes(URANS) simulations using the standard k-ε (SKE), realizable k-ε (RKE) and renormalized (RNG)k-ε were performed for comparison purpose. Combustion was modelled using the species transport model, whereas the heat transfer was calculated using a combined convection-radiation boundary condition. Suitability of various gradient methods (i.e., Green-Gauss node-based, Green-Gauss cell-based and least squares cell-based) to discretize the convection and diffusion terms in the governing equations were assessed by comparing the CFD prediction with experimentally measured temperature. It was found that SAS provided a better prediction of the PCL temperature with about 5.1 % of error from the experimental data. The Green-Gauss node-based method showed a better agreement compared to the two cell-based gradient methods. Installation of thermal insulation increased the peak temperature by about 9.4 %. The finding in this work indicated that CFD model is useful for retrofitting study of an existing PCL.
format Article
author Law, Woon Phui
Jolius, Gimbun
author_facet Law, Woon Phui
Jolius, Gimbun
author_sort Law, Woon Phui
title Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance
title_short Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance
title_full Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance
title_fullStr Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance
title_full_unstemmed Evaluation of the Unsteady Turbulence Modelling and Thermal Insulation on the Performance of Partial Combustion Lance
title_sort evaluation of the unsteady turbulence modelling and thermal insulation on the performance of partial combustion lance
publisher AIDIC Servizi
publishDate 2015
url http://umpir.ump.edu.my/id/eprint/10215/
http://umpir.ump.edu.my/id/eprint/10215/
http://umpir.ump.edu.my/id/eprint/10215/
http://umpir.ump.edu.my/id/eprint/10215/1/Evaluation%20of%20the%20Unsteady%20Turbulence%20Modelling%20and%20Thermal%20Insulation%20on%20the%20Performance%20of%20Partial%20Combustion%20Lance.pdf
first_indexed 2023-09-18T22:09:35Z
last_indexed 2023-09-18T22:09:35Z
_version_ 1777414937697583104

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