Engineering: Recent submissions
Now showing items 1-20 of 1403
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Potential impact of accidental releases of hazardous gases on the immediate habitability of a nuclear power plant
(North-West University (South Africa)., 2023-10)To protect the public and plant operators, the nuclear power industry demands a continuous evaluation of hazards and safety standards. This dissertation provides a history of toxic chemical accidents and the methodologies ... -
A column generation approach for product targeting optimisation within the banking industry
(North-West University (South Africa)., 2023-10)Product targeting optimisation within the financial sector is becoming increasingly complex as optimisation models are exposed to an abundance of data-driven analytics and insights generated from a host of customer ... -
Quantifying maintenance system efficiency of a lobe blower in a maize mill
(North-West University (South Africa)., 2023-10)This study aims to assist maintenance managers in identifying the need for predictive maintenance on a specific machine. The endeavour is to provide justification for condition monitoring implementation and outline the ... -
High-performance sailplane airbrake analysis using CFD
(North-West University (South Africa)., 2023-10)Sailplane airbrakes are an essential part of sailplane control and safety. So much so that EASA, (European Aviation Safety Agency) has specific regulations specifically aimed at sailplane airbrake design. For sailplanes ... -
Developing a steady state neutronic model for the PBR-250 HTR using Serpent 2.1.31
(North-West University (South Africa)., 2023-10)The PBR-250 reactor is a Generation-IV pebble bed high-temperature reactor with a rating of 250MWth and has the ability to produce electricity and process heat of up to 1000 °C. The most desirable feature of this reactor ... -
Knowledge discovery with additive attribution methods for geomagnetic index prediction
(North-West University (South Africa)., 2023-10)During a solar cycle, the Sun emits various ejections such as Coronal Mass Ejections (CME) and higher-pressure streams caused by Corotating Interaction Regions (CIR). These ejections induce geomagnetic storms that are known ... -
Dry beneficiation of -13mm South African coal using an air dense medium fluidization bed
(North-West University (South Africa)., 2023-10)Coal remains an important energy-resource base worldwide as it is considered abundant, affordable and reliable (WEC, 2022). South Africa’s national energy-resource base is dominated by coal; with coal-fired power stations ... -
Coal washability determination using RhoVol technology
(North-West University (South Africa)., 2023-10)Density is one of the key properties of coal and provides information about its physical and chemical composition. Washability analyses (or densimetric information) are used to specify the yield and quality of clean coal ... -
Operations and investment modelling of an energy microgrid with mixed-integer linear programming
(North-West University (South Africa)., 2023)The increase in electricity demand worldwide is driven by economic growth and a rising population. The traditional power system, which is based on a centralised network, is facing many challenges and is not capable of ... -
Improving uranium recovery by utilising compressor waste heat
(North-West University (South Africa)., 2023)Leaching is the key process used for uranium extraction in a slurry mixture. Heat is often introduced in the leaching process to increase the uranium extraction yield. However, acquiring heat is expensive due to electricity ... -
Hydrodynamics inside a laboratory-scale semi-dry flue gas desulphurisation riser
(North-West University (South Africa)., 2023)Since power plants were initially designed without SO2 emission control in mind, power generating facilities are struggling to comply with the increasingly stringent emissions legislation. One possible approach to address ... -
Pressure drop over a packed bed of coke particle mixtures
(North-West University (South Africa)., 2023)Coke particles are a solid fuel used in blast furnaces, and the packing of these particles inside the enclosed vessel is a typical example of a packed bed reactor. The type of coke used in a blast furnace impacts the ... -
Interpretable speaker diarisation for child language environment analysis
(North-West University (South Africa)., 2023)Speaker diarisation is an essential upstream processing step in many speech processing applications. In child natural language environment analysis, it is used to partition long-format recordings into segments with respect ... -
Investigation into the sustainable use of mine waste to treat or prevent acid mine drainage
(North-West University (South Africa)., 2023)Mine waste rock or tailings generate acid when sulphide minerals such as Pyrite (FeS2) oxidise in the presents of oxygen and water. The acid not neutralised by acid neutralising minerals such as calcite is leached into ... -
Establishing a techno-economic base case for a second generation bio-refinery : a South African perspective
(North-West University (South Africa)., 2023)A baseline techno-economic assessment for converting organic municipal waste via a novel continuous hydrothermal liquefaction (cHTL) pilot plant is presented. Feed streams, product yields, and product quality were based ... -
Applying multi-criteria decision-making processes to deep-level mine ventilation projects
(North-West University (South Africa)., 2023)Deep-level underground mining costs in South Africa are continuously rising due to the increased depth at which gold is being mined, increasing the need for improved cooling requirements. Therefore, mines must evaluate ... -
Environmental geochemistry and acid mine drainage modelling of the Sabie River water system in the vicinity of abandoned gold mines
(North-West University (South Africa)., 2023)The purpose of this research was to learn more about the release, transport, dispersal, and fate of metal species emitted by mine tailings storage facilities (MTSFs) on the Sabie River system. Analytical techniques and ... -
Development of an electronic platform to quantify human knee function
(North-West University (South Africa)., 2023)The purpose of the presented study is to determine whether wearable motion analyzers are suitable for monitoring and measuring human knee function. This study focuses on the selection and placement of sensors that can ... -
Evaluation of a switched reluctance motor for solar vehicle application
(North-West University (South Africa)., 2023)The impact of global warming forces the world to develop environmentally sustainable solutions. Common practices for sustainable machines include renewable energy sources and biofuels. The automotive industry is determined ... -
Design, analysis and experimental evaluation of a vibration energy generator
(North-West University (South Africa)., 2023)Generating energy from ambient vibration is a method of harvesting green energy. Harvesting energy in this manner is similar to that of solar and wind energy harvesting. The vibration energy generator discussed in this ...