Engineering
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The dry beneficiation of South African small coal in a dense medium fluidized bed
(North-West University, 2018)Conventionally, wet processing was preferred to beneficiate coal based on its sharp separation efficiency; however, the excessive process water constraint is an extreme drawback and proves that wet beneficiation is currently ... -
Comparison of feature-based classifiers in Automatic Modulation Classification systems
(North-West University, 2018)In South Africa, the telecommunications regulator, ICASA, follows a ?xed spectrum allocation approach. The radio spectrum is assigned to incumbents (primary users) on a long-term basis. This practice follows a wholesale ... -
The experimental evaluation of nitrogen transformation in South African coal chars and the concomitant release of nitrogenous species
(North-West University, 2018)The effect of typical South African (SA) coal properties on nitrogen functional transformation and release were examined in the course of pyrolysis in a fluidised bed (FB) and drop-tube furnace (DTF). Chars were generated ... -
Induction motor efficiency test methods: a comparison of standards
(North-West University, 2018)In this work, fundamental aspects regarding the efficiency of induction motors are treated. Improved efficiency is the task of the hour. Environmental challenges, which include climate change, global warming and greenhouse ... -
Improving energy cost performance of steel production mills
(North-West University, 2018)The global steel supply capacity is more than the demand. This has caused an increase in competition and imports to some countries. South Africa is one of the affected countries and the effects have been seen in the closing ... -
Mine ventilation characterisation through simulations
(North-West University, 2018)The profitability of the mining industry is contingent on the industry’s ability to improve upon the status quo of operational efficiency. If the archaic operating methods of mines are altered to embrace and incorporate ... -
Extracting complexity metrics of technological artifacts and systems from patents using patent document structure
(North-West University, 2018)This study investigates the relationship between different complexity metrics from the literature and metadata fields in patents. Patent citations, claims and other fields are compared against complexity metrics derived ... -
An integrated software platform for the efficient management of projects
(North-West University, 2018)Electronic software platforms play a role in the internal processes and management of projectbased firms. Many task-based solutions exist in practice to handle projects e ciently. These tools address shortcomings that ... -
Investigation into the coupled 1D and 3D numerical modeling of an air-cooled heat exchanger configuration
(North-West University, 2018)One dimensional (1-D) systems CFD can be used to simplify the analyses of thermal-fluid problems with complex geometries as it has the capability to provide quick solutions on fluid dynamics such as pressure changes, ... -
Neutron and X-Ray tomography as research tools for applied research in South Africa
(North-West University, 2018)The use of penetrating radiation for non-destructive investigations, through the use of radiography and tomography, provides for powerful research tools. Development of such experimental facilities, and the establishment ... -
Using thorium to decrease maximum DLOFC temperatures and increase total power output in Pebble-Bed High Temperature Reactors
(North-West University, 2018)This is a study on the topic of modifying the fuel cycles of Pebble-Bed Reactors in order to reduce their maximum fuel temperatures during Depressurised Loss of Forced Coolant (DLOFC) accidents, in order to prevent ... -
Expanding industrial thinking by formalizing the industrial engineering identity for the knowledge era
(North-West University, 2018)This PhD study provides a multi-perspective view of Industrial Thinking and the Industrial Engineering profession. The aim is to formalize the Industrial Engineering identity and expand its associated thinking style to ... -
A study of electrical motor management: engineering services department within a large steel manufacturer as case study
(North-West University, 2018)Electrical motors are the true work horses within industry and these electrical motors have to be managed. This study focuses on a large steel manufacturer's motor population within the engineering service department (ESD) ... -
Simplified high-level investigation methodology for energy saving initiatives on deep-level mine compressed air systems
(North-West University, 2018)Marginal deep-level mines in South Africa are struggling due to current economic conditions. Reducing operating cost on these marginal mines will increase their profitability. Electricity is one of the fastest growing ... -
Research and development of a real-time measurement and evaluation system for SAG mill liner wear
(North-West University, 2018)Refer to the file for an Abstract -
Identification model for cost-effective electricity savings on a mine cooling system
(North-West University, 2018)South Africa has the world's largest reserve of platinum and gold. Despite this, the mining sector is struggling to stay economically viable. Increased costs in mining are one of the main contributors to the struggle of ... -
Developing an integrated information system to assess the operational condition of deep level mine equipment
(North-West University, 2018)Deep gold and platinum mines in South Africa are under pressure to remain profitable. These mines typically operate at depths of more than 2 km below surface. Complex systems are used to supply the underground operations ... -
Modelling and efficiency improvement of a plasma-arc gasification reactor quench probe
(North-West University, 2018)A steady state computational fluid dynamics (CFD) model was developed to describe the temperature and flow characteristics inside a laboratory scale plasma-arc gasification reactor quench probe with the aim of efficiency ... -
Benchmarking power station voltage dip performance to meet the grid code requirements
(North-West University, 2018)This study examines the bearing of a retrospective regulatory framework that requires power-generating units to have a degree of resilience to disturbances that originate in an integrated power system (IPS). Such frameworks ... -
Optimising energy recovery on mine dewatering systems
(North-West University, 2018)Mines in South Africa face many challenges. Chief among these are rising production costs. This coupled with labour unrests and investor uncertainty means that mines are under significant strain. An excellent method to ...
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