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A CFD Study Of A Partial Combustion Lance

Law, Woon Phui and Jolius, Gimbun (2015) A CFD Study Of A Partial Combustion Lance. Journal of Engineering Science and Technology, 10 (S. I.). pp. 68-78. ISSN 1823-4690

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Abstract

This paper presents a computational fluid dynamics (CFD) simulation of a partial combustion lance (PCL) aiming to evaluate the effect of 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. Three turbulence models namely standard kε (SKE), realizable k-ε (RKE) and renormalized (RNG) k-ε 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 thirdorder MUSCL, PRESTO pressure interpolation scheme and SKE, yielding an error of 4.79% from the experimentally measured temperature. 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.

Item Type: Article
Additional Information: Proceedings of the 27th Symposium of Malaysian Chemical Engineers (SOMChE 2014) In Conjuction with 21st Regional Synposium on Chemical Engineering (RSCE 2014), 29-30 October 2014, Taylor's University Lakeside Campus, Subang Jaya
Subjects: T Technology > TP Chemical technology
Faculty/Division: Centre of Excellence: Centre of Excellence for Advanced Research in Fluid Flow
Faculty of Chemical & Natural Resources Engineering
Institute of Postgraduate Studies
Depositing User: Noorul Farina Arifin
Date Deposited: 04 Nov 2014 07:34
Last Modified: 03 Oct 2019 08:09
URI: http://umpir.ump.edu.my/id/eprint/7424
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