Now showing items 1-9 of 9

    • Application of exergy-based fault detection in a gas-to-liquids process plant 

      Greyling, Sarita; Marais, Henri; Van Schoor, George; Uren, Kenneth Richard (MDPI, 2019)
      Fault detection and isolation (FDI) within the petrochemical industries (PCIs) is largely dominated by statistical techniques. Although a signal-based technique centered on exergy flows within a process plant was proposed, ...
    • Capacity estimation for IoT devices on an African mobile network 

      Von Wielligh, R.J. (North-West University, 2019)
      Improvements in the Internet of Things (IoT) enabling technology to lead to increased potential for creating smart and safe cities for the future. While many first world countries already reap the benefits of this technology, ...
    • A comparison of TTF and RTF UHF RFID protocols 

      Hoffman, Alwyn; Holm, Johann; Marais, Henri-Jean (Wiley, 2010)
      This chapter focuses only on aspects related to the choice of a suitable protocol. While a brief overview will be provided of RFID protocols in general, the main focus is on the challenges to find a suitable protocol for ...
    • Computational cost of an exergy-based fault detection scheme implemented in a commercial process simulator 

      Marais, Henri; Van Schoor, George; Uren, Kenneth R. (Elsevier, 2019)
      Energy-based fault detection and isolation (FDI) schemes show promise in terms of applicability to petrochemical industries and the broader process industries. Model-based FDI schemes offer pronounced advantages over more ...
    • An energy-based approach to condition monitoring of industrial processes 

      Marais, Henri-Jean; Van Schoor, George; Uren, Kenneth R. (Elsevier, 2015)
      Condition monitoring has traditionally been deployed for the monitoring of a single component, such as a rotating electrical machine. The application of condition monitoring to an entire process plant has not yet received ...
    • Energy-based fault detection for an autothermal reformer 

      Marais, Henri-Jean; Van Schoor, George; Uren, Kenneth R. (Elsevier, 2016)
      Condition monitoring has traditionally been deployed for the monitoring of a single component, such as a rotating machine. The application of condition monitoring techniques to entire petrochemical process plants, however, ...
    • 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 ...
    • The merits of exergy-based fault detection in petrochemical processes 

      Marais, Henri; Van Schoor, George; Uren, Kenneth R. (Elsevier, 2019)
      The complexity and multi-domain nature of petrochemical (PC) plants make the application of conventional model-based fault detection and isolation (FDI) techniques a challenging endeavour. Although hybrid FDI schemes aim ...
    • A wireless sensor network testbed for the evaluation of energy-aware routing schemes 

      Grobler, Magdalena J.; Marais, Henri-Jean; Krige, Joubert G.J. (Sage, 2014)
      Wireless sensor networks (WSNs) are receiving a lot of research attention due to continual improvement in the technologies used by these networks. The energy efficiency of sensor nodes and the network as a whole is of ...