Retrofits of a Partial Combustion Lance using a Computational Fluid Dynamics

This paper presents a computational fluid dynamics (CFD) simulation of a partial combustion lance (PCL) aiming to evaluate the effect of nozzle design and oxygen flowrate on its performance. At first, the modelling strategy was developed by evaluating the effect of discretization, pressure interpola...

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Main Authors:	Law, Woon Phui, Jolius, Gimbun
Format:	Conference or Workshop Item
Language:	English
Published:	Universiti Teknikal Malaysia Melaka (UTeM) 2015
Subjects:	TP Chemical technology QA Mathematics TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/7471/ http://umpir.ump.edu.my/id/eprint/7471/ http://umpir.ump.edu.my/id/eprint/7471/1/Retrofits_of_a_Partial_Combustion_Lance_Using_a_Computational_Fluid_Dynamics.pdf

id	ump-7471
recordtype	eprints
spelling	ump-74712019-10-03T08:11:05Z http://umpir.ump.edu.my/id/eprint/7471/ Retrofits of a Partial Combustion Lance using a Computational Fluid Dynamics Law, Woon Phui Jolius, Gimbun TP Chemical technology QA Mathematics TA Engineering (General). Civil engineering (General) This paper presents a computational fluid dynamics (CFD) simulation of a partial combustion lance (PCL) aiming to evaluate the effect of nozzle design and oxygen flowrate on its performance. At first, the modelling strategy was developed by evaluating the effect of discretization, pressure interpolation scheme and turbulence models on the prediction accuracy. Four turbulence models, namely standard k-ε (SKE), realizable k-ε (RKE), renormalized (RNG) k-ε and Reynolds stress model (RSM) were used. Combustion was modelled using the species transport model, whereas the heat transfer was calculated by considering a combined convection-radiation boundary condition. The best CFD prediction was obtained using the third-order MUSCL (Monotonic for upstream-centred scheme for conservation law), PRESTO (Pressure staggering option) pressure interpolation scheme and RSM, yielding an error of 2.23% from the experimentally measured temperature. The new nozzle design shows increases in excess of 70% of the peak combustion temperature of the PCL. It was found that 40% increase in oxygen flowrate increased the peak combustion temperature of the PCL by about 12%. Dual lance was found to be more effective than the single lance operating at a similar flowrate. The finding obtained from this work may be useful for design retrofits of a PCL. Universiti Teknikal Malaysia Melaka (UTeM) 2015 Conference or Workshop Item NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/7471/1/Retrofits_of_a_Partial_Combustion_Lance_Using_a_Computational_Fluid_Dynamics.pdf Law, Woon Phui and Jolius, Gimbun (2015) Retrofits of a Partial Combustion Lance using a Computational Fluid Dynamics. In: 8th Malaysian University Campus Emission Tool (MUCET) 2014, 10-11 November 2014 , Melaka. pp. 320-326., 1. ISBN 978-967-0257-53-2 http://ocs.utem.edu.my/index.php/mucet2014/MUCET2014/paper/viewFile/120/40
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 QA Mathematics TA Engineering (General). Civil engineering (General)
spellingShingle	TP Chemical technology QA Mathematics TA Engineering (General). Civil engineering (General) Law, Woon Phui Jolius, Gimbun Retrofits of a Partial Combustion Lance using a Computational Fluid Dynamics
description	This paper presents a computational fluid dynamics (CFD) simulation of a partial combustion lance (PCL) aiming to evaluate the effect of nozzle design and oxygen flowrate on its performance. At first, the modelling strategy was developed by evaluating the effect of discretization, pressure interpolation scheme and turbulence models on the prediction accuracy. Four turbulence models, namely standard k-ε (SKE), realizable k-ε (RKE), renormalized (RNG) k-ε and Reynolds stress model (RSM) were used. Combustion was modelled using the species transport model, whereas the heat transfer was calculated by considering a combined convection-radiation boundary condition. The best CFD prediction was obtained using the third-order MUSCL (Monotonic for upstream-centred scheme for conservation law), PRESTO (Pressure staggering option) pressure interpolation scheme and RSM, yielding an error of 2.23% from the experimentally measured temperature. The new nozzle design shows increases in excess of 70% of the peak combustion temperature of the PCL. It was found that 40% increase in oxygen flowrate increased the peak combustion temperature of the PCL by about 12%. Dual lance was found to be more effective than the single lance operating at a similar flowrate. The finding obtained from this work may be useful for design retrofits of a PCL.
format	Conference or Workshop Item
author	Law, Woon Phui Jolius, Gimbun
author_facet	Law, Woon Phui Jolius, Gimbun
author_sort	Law, Woon Phui
title	Retrofits of a Partial Combustion Lance using a Computational Fluid Dynamics
title_short	Retrofits of a Partial Combustion Lance using a Computational Fluid Dynamics
title_full	Retrofits of a Partial Combustion Lance using a Computational Fluid Dynamics
title_fullStr	Retrofits of a Partial Combustion Lance using a Computational Fluid Dynamics
title_full_unstemmed	Retrofits of a Partial Combustion Lance using a Computational Fluid Dynamics
title_sort	retrofits of a partial combustion lance using a computational fluid dynamics
publisher	Universiti Teknikal Malaysia Melaka (UTeM)
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/7471/ http://umpir.ump.edu.my/id/eprint/7471/ http://umpir.ump.edu.my/id/eprint/7471/1/Retrofits_of_a_Partial_Combustion_Lance_Using_a_Computational_Fluid_Dynamics.pdf
first_indexed	2023-09-18T22:04:06Z
last_indexed	2023-09-18T22:04:06Z
_version_	1777414592208568320

Retrofits of a Partial Combustion Lance using a Computational Fluid Dynamics

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