Engineering
Recent Submissions
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Characterization of a titanium coaxial condenser
(North-West University (South Africa)., 2020)In South Africa a leading engineering company, focusing on energy engineering services and products to the mining industry, developed a mobile refrigeration unit known as the air-cooling unit (ACU) MKII. The ACU MKII uses ... -
Development of an organisational CMMS implementation and sustainability guide for abattoirs
(North-West University (South Africa), 2020)Throughout the years, companies have realised that, in order to consistently deliver quality products, you need to have a well-implemented and sustainable maintenance plan. For this reason, companies make use of a CMMS to ... -
Novel solutions for compressed air demand management on deep-level mines
(North-West University (South Africa), 2020)Mining makes a significant contribution to South Africa’s economy (7.3% of the gross domestic product) and provides direct employment to more than 450 000 people. The bulk of South Africa’s mineral wealth lies in deep-level ... -
A framework for the re-use, recycling and disposal of waste electrical and electronic equipment: the South African case
(North-West University (South Africa), 2020)In this thesis, A framework for the re-use, recycling and disposal of waste electrical and electronic equipment: The South African case, the researcher did an investigation on current practices in South Africa dealing with ... -
Integrated model of sulphur dioxide absorption into limestone slurry in an agitated vessel
(North-West University (South Africa), 2020)An investigation was undertaken to develop and validate an integrated model for ab-sorption of sulphur dioxide involving a gas-slurry system consisting of limestone in order to contribute to the understanding and modelling ... -
Practical determination of heat loads for existing deep level gold mines
(North-West University (South Africa), 2020)Deep-level gold mines in South Africa (SA) are faced with immense challenges regarding profitability. Optimising these mines is a pivotal step to prolong the current lifespan of the gold-mining sector in SA. As these mines ... -
A simulation-based prediction model for coal fired power station condenser maintenance
(North-West University (South Africa), 2020)South African coal-fired power stations (CFPSs) are faced with special challenges. These include ageing infrastructure, increased maintenance requirements and reduced funds. A unique solution is therefore required whereby ... -
A South African perspective investigatingfive nitrogen application levels for optimumsweet sorghum juice yields needed for theproduction of bio-ethanol
(North-West University (South Africa), 2020)The rasionale behind this study was merely to determine whether the tested sweet sorghum genotypes can be utilised as a renewable bio-ethanol resourse and whether different nitrogen (N) application levels have an effect ... -
Accelerating the fatigue life characterization of composite sailplane structures - a novel approach
(North-West University (South Africa), 2020)Current accepted methods of composite sailplane life certification are based on full scale structural testing of the aircraft’s wing. Two accepted test procedures exist, namely a static test to an elevated load level and ... -
A strategy for potable water conservation in gold mines
(North-West University (South Africa), 2020)Water is a valuable resource in South African communities as well as industries. Mining operations require water for a variety of applications. The mismanagement of water results not only in the industry losing revenue but ... -
Reconfiguring deep-level mine dewatering systems for increased water volumes
(North-West University (South Africa), 2020)Deep-level mines are faced with a host of challenges that can pose a threat to the safety of underground mine employees. Significant among these threats is the risk of underground floods as a result of fissure water flowing ... -
Design and synthesis of an image-based object detection system
(North-West University (South Africa), 2020)This thesis presents the design and synthesis of an image-based ob-ject detection system, as applied to a facial recognition (FR)-enabled surveillance system. By employing the Design Science Research (DSR) paradigm and ... -
Activation functions in deep neural networks
(North-West University (South Africa), 2020)The ability of machine learning algorithms to generalize is arguably their most important aspect as it determines their ability to perform appropriately on unseen data. The impres-sive generalization abilities of deep ... -
High temperature electrochemical hydrogen membrane separation using a PGM-based catalyst
(North-West University (South Africa), 2020)Hydrogen, as energy carrier, is expected to play an indispensable role in the future energy prospects. Subsequently, significant advancements in research and development of hydrogen-based technologies, in the areas of low ... -
A cloud based business intelligence framework for a cellular Internet of Things network
(North-West University (South Africa), 2020)In this research, a Business Intelligence (BI) framework for a cellu-lar Internet of Things (IoT) environment is researched, designed, im-plemented and evaluated. The BI framework provides a structure that supports development ... -
Evaluating localised ventilation improvements on deep-level mines using simulation models
(North-West University (South Africa), 2020)The ventilation system of a mine is responsible for providing sufficient airflow in terms of quantity and quality. To ensure a safe and healthy environment, the main fans dilute and exhaust poisonous gases and dust throughout ... -
Development of a mixed-flow pump for a small-scale hydro power test facility
(North-West University (South Africa), 2020)A holistic method for the design of a mixed-flow pump was sought, but was not readily available in open literature. A design and evaluation methodology for a mixed-Flow pump has been developed by making use of open literature ... -
Sailplane fuselage aerodynamic optimization using CFD
(North-West University (South Africa), 2020)In sailplane aerodynamic design, the foremost validation technique applied is computational fluid dynamics (CFD) simulation due to its ability to obtain accurate aerodynamic information without the need for a wind tunnel. ... -
A generic software platform for performance monitoring of deep-level mine systems
(North-West University (South Africa), 2020)Systems of a deep-level mining operation are integral to the working of a mine. These systems help with water reticulation, compressed air, and energy used for mining minerals. A mine relies on these capital-intensive ... -
Development of a method for software maintenance using event logs
(North-West University (South Africa), 2020)Previous studies have shown that software maintenance can comprise between 60% and 80% of a software system’s overall cost due to the time spent on maintenance. It is also important to note that in any software system, it ...
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