Engineering: Recent submissions
Now showing items 41-60 of 1403
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Centralised vs decentralised PI control for an islanded multi-inverter microgrid
(North-West University (South Africa)., 2023)Energy supply security is arguably one of the most pressing challenges for both emerging and established countries around the world, as technology grows increasingly reliant on reliable energy. With the increase of ... -
Characterization of lignosulphonate and its changes during purification
(North-West University (South Africa)., 2023)The world needs an environmentally friendly renewable resource that could satisfy future energy needs and lower the impact on climate change. This need has driven many countries to fund research into biomass and biomass ... -
Effective removal of ammonia from the drinking water system : a case study at Magalies Water
(North-West University (South Africa)., 2023)Access to clean drinking water and sanitation is recognised as a human right and imperative to holistic functioning of life and interlocking nitty-gritties. In recent years, the quality of surface water in low- and ... -
Evaluation and modelling of particle collection efficiency of electrostatic precipitation
(North-West University (South Africa)., 2023)Many South-African power plants use wire-plate electrostatic precipitators (ESPs); however, these ESPs, in practice, have yet to meet the expected high particle collection efficiencies and present relatively low collection ... -
The effect of feed water TDS on RO membrane rejection rates and performance
(North-West University (South Africa)., 2023)Power generation is a major user of fresh water, which is becoming important for Eskom and South Africa due to the water-scarce status. Therefore, the water usage at a thermal power station is a key metric and reverse ... -
The temperature coefficient of a PWR based on an in-rod heterogeneous thorium/uranium fuel design
(North-West University (South Africa)., 2023)The effect of temperature change in nuclear reactors is of high importance due to the influence on the reactivity of the reactor and its implication for reactor safety. The temperature coefficient of reactivity due to ... -
Neutronics and fuel performance analysis of TRISO-based accident tolerant fuel for PWRs
(North-West University (South Africa)., 2023)South Africa has one nuclear power plant in Cape Town called the Koeberg nuclear power station. This power station still uses conventional uranium dioxide fuel pellets and zirconium cladding. Since the Fukushima-Daiichi ... -
Evaluation of SiC cladded annular fuel as accident tolerant fuel for PWRs
(North-West University (South Africa)., 2023)Nuclear energy produced by Light Water Reactors (LWRs) was in the spotlight in the aftermath of the Fukushima disaster, which led to the development of Accident Tolerant Fuels (ATF). ATF desires to improve fuel safety and ... -
Wastewater remediation using municipal solid waste-derived hydrochar
(North-West University (South Africa)., 2023)Industrialisation and population growth increase solid waste generation and the release of toxic pollutants into the environment. Therefore, novel approaches are necessary for both wastewater remediation and solid waste ... -
Future mine compressed air planning using digital twin simulations
(North-West University (South Africa)., 2023)Most deep-level gold mines use compressed air services for various applications that directly influence gold production. Amongst others, these applications include drilling, agitation and loading boxes. However, similar ... -
A maturity model to enhance the adoption of Additive Manufacturing in spare part provisioning in South Africa
(North-West University (South Africa)., 2022)The fourth industrial revolution (4IR) demands a significant change in the way businesses operate. The previous three industrial revolutions were initiated from the market and demanded that organisations adopt to the ... -
Engineering a process safety culture in the chemical processing industry
(North-West University (South Africa)., 2022)Industries where fire, explosion or releases (FERs) of hazardous chemicals may occur are administered by process safety management (PSM). Such events have the potential to cause catastrophes resulting in fatalities, facility ... -
A method for transient simulation of integrated ventilation and cooling systems in deep-level mines
(North-West University (South Africa)., 2022)Mine ventilation and cooling systems ensure adequate air temperature and flow in underground working areas. These are large and complicated systems that are integrated and interdependent. As underground mines expand to ... -
A comparison of PCA- and energy-based fault detection and isolation in a physical heated twotank process
(North-West University (South Africa)., 2022)The demands for petrochemical (PC) plant productivity and safety are increasing and with it the need for effective fault detection and isolation (FDI) methods. One of the more well-known and widely tested methods is ... -
Application of M&V 2.0 techniques to identify and quantify non-routine events
(North-West University (South Africa)., 2022)Energy efficiency measures (EEM) are implemented on mines to reduce energy consumption. The impact of an EEM must be determined to evaluate if any energy savings were achieved. This is done by applying measurement and ... -
An automated method to determine dynamic pump efficiencies in deep-level mines
(North-West University (South Africa)., 2022)Deep-level mines use dewatering systems that are responsible for the removal of underground water. A dewatering system consists of a series of dewatering dams and pumps. Dewatering pumps are responsible for pumping water ... -
Evaluation of lightweight data integrity algorithms for the Internet of Things
(North-West University (South Africa)., 2022)Advances in ubiquitous computing have led to the use of the Internet of Things (IoT). IoT interconnects various physical objects, such as computers, mobile phones, vehicles, and sensors, to the internet. In an IoT platform, ... -
Analysis of future carbon tax scenarios for South African gold mines
(North-West University (South Africa)., 2022)The South African Carbon Tax Act came into effect in 2019, and it places a price on the emissions of greenhouse gases (GHG). The second phase of the carbon tax will be implemented in 2023. Presently, there is uncertainty ... -
Advanced network modelling techniques for power system state estimation
(North-West University (South Africa)., 2000)State estimation is the process to calculate estimates for unknown state variables of a power network by minimising an objective function. Classical state estimators take into account that network parameters e.g. impedances ... -
Development of a variable-fill hydraulic dynamometer test bench
(North-West University (South Africa)., 2021)The WJ Engineering company required a torque absorption device to be used in their newly developed Hydro Testing Facility. The torque absorption device is intended to load hydraulic turbine models that will be tested in ...