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A 3-phase Z-source inverter driven by a novel hybrid switching algorithm
Published 2015“…A novel DSP control algorithm allows the inverter toachieve the following:· Run Space Vector Pulse Width Modulation (SV-PWM) for maximum DCbus voltage utilization while boosting the DC bus during zero space vectorstates using shoot through.· Seamless transition between modulation control and modulation / shootthrough control.· Optimised efficiency and DC bus utilisation using Hybrid Space VectorBoost Pulse Width Modulation (HSVB PWM) which is unique to thisdissertation.Such a system is particularly suited to fuel cell and particularly wind turbineapplications where the DC bus voltage is varies over a wide range resulting inthe need for a DC to DC buck/boost to regulate the DC bus to maintain a steady3-phase sinusoidal output. …”
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Boiler system modelling using Flownex®
Published 2016“…Flownex has been identified as the key software to accomplish the global objective of the Centre for Energy Efficiency under EPPEI at the University of Cape Town, which is to develop a software model of a complete coal-fired power station which includes all the main systems required for independent transient simulation. …”
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Development of a generalised kinetic model for the combustion of hydrocarbon fuels
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Investigating red pigment production by Penicillium purpurogenum DSM 62866
Published 2023“…Fungal pigments can, however, be produced in large-scale processes, under optimised and controlled conditions, with minimal dependence on weather and seasonal raw materials. …”
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Investigating wastewater generation and wastewater effluent treatment in the South African fruit & vegetable processing industry
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The supply chain network evolution of a food banking network
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Coaxially electrospun heparin-eluting scaffolds for vascular graft application
Published 2023“…Coaxial incorporation had a 2× higher heparin encapsulation efficiency than blend incorporation (approaching 100 %). …”
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Helically coiled cavity receiver for a micro-scale direct generation steam Rankine cycle using a novel solar dish design
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The Experimental evaluation of a mixed-flow compressor impeller and cross-over diffuser.
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Thermal analysis of commercially available water heaters: a focus on the South African national standard
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HPV pseudovirion production in plants
Published 2014“…The SEAP and luc cassettes were introduced into pRIC3 upstream of the plant cassette, which was included only to increase the final pseudogenome size for efficient packaging into PsVs. The SEAP cassette was also introduced into pRIC3 in place of the plant cassette, to form a smaller pseudogenome. …”
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Cytochrome P450 whole cell biohydroxylation of alkanes
Published 2025“…Effective use, or resource efficiency, with respect to alkanes is important in sustainable processing. …”
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Protoplast-based biotechnology methods for Vitis vinifera
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An Investigation into the Effects of Asperities on Geomembrane/Geotextile Interface Shear Characteristics
Published 2022“…These outcomes present a better explanation of the “fibre/asperity” interaction at the GMB/GTX interface and identified asperity properties which optimised surface interaction. The optimised interaction produces efficient shear mechanism that would ultimately lead to a stable and durable landfill liner system.…”
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Tshwane logistics hub : an integration of freight transport infrastructure
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A generic neural network framework using design patterns
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