Faculty of Engineering
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In situ capturing and absorption of sulfur gases formed during thermal treatment of South African coals
(ACS, 2018)The objective of this study, the first of its kind on these specific South African low-sulfur coals, was to capture H2S and SO2 produced under inert and oxidizing conditions from sulfur compounds present in the coals. The ... -
Mineralogical, chemical, and petrographic properties of selected South African power stations’ feed coals and their corresponding density separated fractions using float-sink and reflux classification methods
(Taylor & Francis, 2018)Three South African feed coal samples for the combustion process were beneficiated to produce carbon-rich and mineral-rich fractions. The mineralogical, petrographical, and chemical properties of these feed coals and ... -
Analysing the porous structure of packed beds of spheres using a semi-analytical approach
(Elsevier, 2019)In this paper methodologies are described for the analysis of the porous structure of cylindrical and annular packed beds consisting of spheres when the coordinates and sizes of the spheres are known. Methodologies to ... -
Towards addressing respect for people during lean implementation
(Emerald, 2018)Purpose – The purpose of this study is to investigate, report and interpret the true, original meaning of the ToyotaWay Respect for People (RFP) principles as intended by their creators. Design/methodology/approach – The ... -
Turbine investment optimisation for energy recovery plants by utilising historic steam flow profiles
(Elsevier, 2018)Burnable off-gases generated in engineering process plants are regularly utilised as energy sources. A common use is for steam production, where excess steam is allocated to power generation turbines. Fluctuating off-gas ... -
Hydrogen generation by the hydrolysis of mechanochemically activated aluminum-tin-indium composites in pure water
(Elsevier, 2018)This paper presents results of our continuing project on the mechanochemical activation of Al-based composites for hydrogen generation [1,2]. A series of bi- and ternary Al, Sn, and/or In composites were mechanochemically ... -
Design considerations of the PM transverse flux linear motor for an urban-type electromagnetic train
(IEEE, 2018)This paper presents six different designs of the permanent magnet transverse-flux linear motor applied to an electromagnetic train. The initial design of the motor was modified to improve its magnetic characteristics. ... -
Experimental study of the effective thermal conductivity in the near-wall region of a packed pebble bed
(Elsevier, 2018)The effective thermal conductivity is an important parameter that represents the overall heat transfer in packed beds, including packed pebble beds. Experimental test facilities have been used to determine the effective ... -
Energy and economic performance of small wind energy systems under different climatic conditions of South Africa
(Elsevier, 2018)Several studies have established the abundance of the wind resources in South Africa, which can position the country as a leader in wind power generation continentally if the resource is well harnessed. In acknowledging ... -
Application of nanoparticles in biofuels: an overview
(Elsevier, 2019)Biofuels are fast advancing as alternative sources of renewable energy due to their non-polluting features and cost-competitiveness in comparison to fossil fuels. However, in order to fast-track their development, focus ... -
Assessment of the viability of Saccharomyces cerevisiae in response to synergetic inhibition during bioethanol production
(Indian Academy of Sciences, 2018)Second-generation biofuels, fuels produced from lignocellulosic materials, including wood, agricultural residues and biomass waste include bioethanol, biodiesel and biogas. These fuel sources have great potential as ... -
Novel cross-linked PBI-blended membranes evaluated for high temperature fuel cell application and SO2 electrolysis
(Elsevier, 2018)Within this study various partially fluorinated polyaromatic and PBI blend components were covalent-ionically cross-linked to obtain acid and base-excess proton exchange membranes that can be applied in high temperature ... -
An explorative study into the effectiveness of a customs operation and its impact on trade
(CCES, 2018)There is a lack of overall efficiency in Sub-Saharan Africa’s logistics systems, with a large contributor to this problem being inefficient customs processes and unnecessary customs delays. Many comparisons have been ... -
Insight into the adsorption of a liquid organic hydrogen carrier, perhydro-i-dibenzyltoluene (i ¼ m, o, p), on Pt, Pd and PtPd planar surfaces
(RSC, 2018)Liquid organic hydrogen carriers (LOHCs) are considered to be safe and efficient hydrogen storage media with high hydrogen storage capacities. Adsorption of the LOHC perhydro-i-dibenzyltoluene (i ¼ meta (m), ortho (o), ... -
Operational advantages of mobile refrigeration using a closed loop heat rejection configuration
(2018)The operational advantages of localised cooling, in particular moving the cooling source as close as possible to the area where cooling is required, has been investigated by different authors over a number of years. ... -
Reviewing H2 combustion: a case study for non-fuel-cell power systems and safety in passive autocatalytic recombiners
(ACS, 2018)This Review looks at past and current research and development (R&D) on H2 combustion in terms of power generation in gas turbines and safety in passive autocatalytic recombiners (PARs). The drive toward reducing greenhouse ... -
Financial model for energy efficiency projects in the mining industry
(Elsevier, 2018)The impact of industrial EE projects have previously been understated by the omission of non-energy benefits (NEBs). As a result, several fruitful projects have not been implemented which could have dire consequences for ... -
Evaluating complex mine ventilation operational changes through simulations
(Univ Cape Town, 2018)Increasing the profitability of the mining industry is contingent on its ability to improve operational efficiency. Mine ventilation networks typically represent 25-50% of a mine’s energy consumption and, therefore, ... -
Bottom of Pyramid 4.0: modularising and assimilating industrial revolution cognition into a 4-tiered social entrepreneurship upliftment model for previously disconnected communities
(World Scientific, 2018)Developing a sociopreneurial (social-entrepreneurship) ecosystem is a substantial long-term investment. Much like natural ecosystems, there are a multitude of support systems needed to maintain balance and diversity in ... -
Morphological modification of Chromolaena odorata cellulosic biomass using alkaline peroxide oxidation pretreatment methodology and its enzymatic conversion to biobased products
(Taylor & Francis, 2018)In this study, the structural modification of Siam weed (Chromolaena odorata) was performed using NaOH–H2O2- and Ca(OH)2–H2O2-based oxidative pretreatment for the enzymatic conversion of the biomass to a biocommodity, ...
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