Recent Submissions

  • Moving households to cleaner energy through air quality offsets 

    Langerman, Kristy E.; Piketh, Stuart J.; Pauw, Christiaan J.; Smith, Hendrik J. (IEEE, 2018)
    Highest levels of exposure to polluted air in South Africa occur in low-income settlements where households burn solid fuels. The Department of Environmental Affairs has recently developed a legally enforceable mechanism ...
  • Simulation of a predominantly passive natural air cooling system 

    Venter, P.V.Z.; Van Eldik, M. (IEEE, 2018)
    Climate control is an everyday challenge. With the rapid surge in electricity prices over the past few years, air conditioning operating expenses necessarily increased. The effects, furthermore, of global warming result ...
  • Membranes with recombination catalyst for hydrogen crossover reduction: water electrolysis 

    Bessarabov, Dmitri (ECS, 2018)
    An unusual morphology of the Pt-based catalyst, embedded in a PFSA membrane matrix, is described. The catalyst was developed for reducing hydrogen gas crossover in the PEM water electrolysis process. A modified electroless ...
  • PBI-blended membrane evaluated in high temperature SO2 electrolyzer 

    Peach, Retha; Krieg, Henning; Krüger, Andries; Bessarabov, Dmitri; Kerres, Jochen A. (ECS, 2018)
    It has been shown that hydrogen can be produced efficiently within the membrane based Hybrid Sulfur (HyS) process, where SO2 is electrochemically oxidized in the presence of H2O to produce H2 and H2SO4. In earlier studies, ...
  • Interference analysis of multiple in-road readers 

    Zhang, Lu; Pretorius, Albertus J.; Bialkowski, Konstanty S.; Abbosh, Amin M. (IEEE, 2018)
    In-road microwave readers and vehicle license plate tags provide superior advantages for traffic monitoring and vehicle identification. However, a single reader cannot accomplish the task of covering multi-lane roads. ...
  • Performance visualisation of a transcritical CO2 heat pump under fault conditions 

    De Bruin, J.J.A.; Uren, K.R.; Van Schoor, G.; Van Eldik, M. (NWU, 2018)
    Heat pump systems have gained acceptance and appeal as an energy efficient alternative to electrical geysers for the purpose of water heating. This paper investigates a next-generation transcritical heat pump system using ...
  • A low-cost condition monitoring solution for industrial bakery equipment 

    Marais, H.; Black, J. (NWU, 2018)
    Artisanal bakeries perform a critical function in many societies all over the world. However, artisanal bakers struggle to compete with commercial bakeries’ efficiencies due to the lack of technology deployment. One aspect ...
  • A vision of energy-based visualisation of large scale industrial systems for the purposes of condition monitoring 

    Van Schoor, G.; Uren, K.R. (NWU, 2018)
    Most large scale industrial systems can be viewed as processes that convert energy from one form to another. Energy is a universal quality of which the distribution holds meaning across physical domains i.e. thermal-flu ...
  • Characterization and modelling of a customs operation 

    Hoffman, A.J. (NWU, 2018)
    Effective risk management is a prerequisite to find an acceptable balance between the objectives of a customs operation and the streamlined flow of goods. This requires the use of well-designed customs risk management models ...
  • Real-time monitoring of temperature distribution in a lithium-ion battery pack 

    Aucamp, A.M.; Janse van Rensburg, A. (NWU, 2018)
    Intelligent battery management systems aim to continuously diagnose the state-of-health (SOH) of cells in a battery pack and predict performance, reliability and safety issues. Cells with a higher internal resistance ...
  • A condition based reliability simulator framework based on a heuristic fault model 

    Swanepoel, H.F.; Wichers, J.H. (NWU, 2018)
    There are significant concerns as well as remedial efforts by the SA Power Utility to improve the generation plant performance that showed a significant decline over the past number of years. There is general consensus on ...
  • Off Line Partial Discharge as an essential Condition Based Monitoring (CBM) Tool for busbar insulation monitoring on Air Insulated Switchgear (AIS) 

    Bissett, J.V.; Van Vuuren, P.A. (NWU, 2018)
    This paper investigates the effectiveness of current test methods and procedures associated with insulation testing on the busbar of Air Insulated Switchgear (AIS) during scheduled planned maintenance. An improved test ...
  • Condition monitoring thermal properties of a 20A hydraulic-magnetic MCB 

    Kleynhans, R.; Van Vuuren, P.A.; Thomas, R.A. (NWU, 2018)
    Heat is one of the major causes of degradation which can cause a reduction in performance, reliability and life span of miniature circuit breakers (MCBs) [1]. In order to diagnose the condition of electrical equipment, ...
  • Pollution control of the Selati tailings storage facility by means of a decision support system: a case study 

    Daniell, Angelique; Van Deventer, Piet W. (CSEE, 2018)
    The Selati tailings storage facility (TSF) lies in the Limpopo Province in South Africa and originates from mining and the metallurgical processing of carbonatite and pyroxenite from the Phalaborwa Complex [1]. The Selati ...
  • Harmonic impedance assessment using prevailing phasors 

    Serfontein, Duan; Rens, Johan; Botha, Gerhard (IEEE, 2018)
    In accordance with the IEC 61000-3-6, the evaluation of the harmonic emissions requires an accurate harmonic impedance representation of the system. However, the assessment of a harmonic impedance is understood to be a ...
  • Fuel allocation and lockout system 

    Riekert, Adam; Gurusinghe, Nicoloy; Gouws, Rupert; Ariyarathna, Thilanga (IEEE, 2018)
    In transport and Logistics business with the fierce competition, avoiding fuel theft through monitoring and management is a major concern in Africa. With the steadily increase in fuel price, fuel theft and fraud poses a ...
  • Smart whiteboard for interactive learning 

    Kellerman, Andre; Gurusinghe, Nicoloy; Gouws, Rupert; Ariyarathna, Thilanga (IEEE, 2018)
    The need for educators conveying information more interactively has increased as we are moving into a more technological era. A need for increasing the efficiency of lectures has become very important. This project addresses ...
  • Data logger and companion application for time-of-use electricity 

    Vermaak, Nicojan; Gurusinghe, Nicoloy; Gouws, Rupert; Ariyarathna, Thilanga (IEEE, 2018)
    Electricity generation is becoming more expensive, hence Time-of-Use (ToU) electricity tariff structures, such as Eskom Megaflex are implemented. The companion application is an integrated solution designed for use with ...
  • Evidence-informed decision making for nutrition: African experiences and way forward 

    Aryeetey, Richmond; Taljaard, Christine; Holdsworth, Michelle; Hounkpatin, Waliou Amoussa; Colecraft, Esi (Cambridge Univ Press, 2017)
    Although substantial amount of nutrition research is conducted in Africa, the research agenda is mainly donor-driven. There is a clear need for a revised research agenda in Africa which is both driven by and responding to ...
  • Students’ learning approaches: are they changing? 

    Taylor, Estelle; Van Aswegen, Kobus (Springer, 2017)
    ome researchers believe that not much has changed in terms of how students prefer to study, whilst others believe that tertiary institutions have to adapt to a new generation of students. The aim of this paper is to determine ...

View more