Browsing Faculty of Engineering by Author "Everson, R.C."
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CFD modeling of particle charging and collection in electrostatic precipitators
Arif, S.; Branken, D.J.; Everson, R.C.; Neomagus, H.W.J.P.; Le Grange, L.A.; Arif, A. (Elsevier, 2016)A CFD model was developed to describe the particle laden gas flow through an ESP, particle charging and collection. The corona discharge was modeled using the open source software OpenFOAM to solve the Poison and charge ... -
Coal reactivity and selection for solid-based pre-reduction of sponge iron
Van Wyk, S.; Neomagus, H.W.J.P.; Bunt, J.R.; Everson, R.C. (Taylor & Francis, 2020)Solid-based direct reduction of iron ore requires the reductant coal to have a suitable CO2 reactivity to achieve optimum pre-reduction within a rotary kiln. The CO2 reactivity is affected by numerous factors including ... -
Development of an integrated model for absorption of sulphur dioxide in limestone slurry
Mchabe, D.; Everson, R.C.; Ramachandran, P.A.; Neomagus, H.W.J.P.; Branken, D.J. (Elsevier, 2021)The aim of this study is to develop an integrated model for SO2 absorption into limestone slurry consisting of four sub-models, namely, absorption of SO2; desorption of CO2; dissolution of limestone and crystallization of ... -
The influence of design parameters on the occurrence of shielding in multi-electrode ESPs and its effect on performance
Arif, S.; Branken, D.J.; Everson, R.C.; Neomagus, H.W.J.P.; Arif, A. (Elsevier, 2018)A numerical model in which OpenFOAM® is used to model the electrostatic field resulting from corona discharge in single-channel wire-plate electrostatic precipitators (ESPs) was applied to systematically study the shielding ... -
The properties of large coal particles and reaction kinetics of corresponding chars
Everson, R.C.; Neomagus, H.W.J.P.; Van der Merwe, G.W.; Koekemoer, A.; Bunt, J.R. (Elsevier, 2015)An investigation was undertaken to determine the distribution of chemical-, petrographic- and mineralogical properties of large coal particles of different sizes and densities and to evaluate a suitable reaction rate model ... -
Sulphur trioxide decomposition with supported platinum/palladium on rutile catalyst. 2. Performance of a laboratory fixed bed reactor
Stander, B.F.; Everson, R.C.; Neomagus, H.W.J.P.; Van der Merwe, A.F.; Tietz, M.R. (Elsevier, 2015)The construction, operation and experimental evaluation of a laboratory scale fixed bed reactor for the decomposition of sulphur trioxide with a supported platinum and palladium based catalyst, were undertaken. The heating ... -
Sulphur trioxide decomposition with supported platinum/palladium on rutile catalysts. 1. Reaction kinetics of catalyst pellets
Everson, R.C.; Stander, B.F.; Neomagus, H.W.J.P.; Van der Merwe, A.F.; Le Grange, L.; Tietz, M.R. (Elsevier, 2015)An investigation was undertaken to evaluate the intrinsic reactivity, stability and associated diffusional parameters of catalyst pellets consisting of platinum and palladium on rutile for the conversion of sulphur trioxide ...