Engineering: Recent submissions
Now showing items 61-80 of 1403
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Simulation of externally fired gas turbine configurations for micro-scale biomass applications
(North-West University (South Africa)., 2019)Most rural communities in South Africa are forced to rely on alternative energy resources such as biomass, gas, liquid fuels and waste materials for the provision of energy to fulfil their lighting and cooking needs since ... -
An integrated methodology to measure and verify energy conservation under incentive-based irrigation pumping programmes
(North-West University (South Africa)., 2019)Water scarcity and droughts have become a looming threat in many counties worldwide. In South Africa, a water crisis is upon the country and estimations show a supply shortfall of 17% by 2030. When considering water ... -
A critical analysis of emission quantification methods in the ferrochrome industry
(North-West University (South Africa)., 2019)Ferrochrome (FeCr) furnaces are significant CO2 emitters due to the large amounts of carboncontaining materials being used. FeCr industries will therefore become liable for carbon tax (CT), which is set for implementation ... -
Optimisation of mine secondary fan systems
(North-West University (South Africa)., 2020)The rising cost of electricity in South Africa has driven deep-level gold mines to save on costs. The optimisation of mine ventilation systems has shown significant potential for energy savings. A literature study showed ... -
A comparison of evolutionary computation and deep reinforcement learning for portfolio optimization
(North-West University (South Africa)., 2021)In portfolio management, asset allocation is one of the most crucial and difficult challenges investors face. Asset allocation is defined as a decision making process of spreading available funds into various financial ... -
Expanding compressed air management through cross cut isolation
(North-West University (South Africa)., 2022)Compressed air on deep-level mines is regarded as an important source of energy for underground mining operations, as the compressed air network forms the backbone of several mining processes over a 24-hour mining cycle. ... -
Prediction model for the performance of a methane-fuelled spark-ignition engine at a deeplevel mine
(North-West University (South Africa)., 2022)Electrical energy supply in South Africa is unreliable and the cost of electricity has been increasing significantly annually. This negatively impacts high energy consumers, especially deep-level mines. Therefore, reducing ... -
Criticality study of a spent fuel pool using SCALE 6.2.3 and MCNP6.2
(North-West University (South Africa)., 2022)The North-West University (NWU) through the Reactor Analysis group in UETS plans to conduct research on the spent fuel pool using capabilities of the in-house code, North-West University Reactor Code Suite (NWURCS). Due ... -
A structured approach to prioritise industrial energy efficiency measures by assessing feasibility criteria
(North-West University (South Africa)., 2022)The increasing importance of energy management is evident in the growing global energy demand as well as in the incentivisation of energy efficiency by the South African government. Despite the large potential in industry, ... -
Development of an emissions forecasting model for South African industrial facilities
(North-West University (South Africa)., 2022)Greenhouse gas (GHG) emissions are one of the main contributors to climate change. Several mitigation measures such as carbon tax, carbon budgets and sectoral emissions targets (SETs) are used to reduce GHG emissions. ... -
Interpreting deep neural networks with sample sets
(North-West University (South Africa)., 2022)Despite their impressive performances on a range of widespread tasks, deep neural networks (DNNs) are generally considered `black box' models due to the lack of transparency behind their decision-making processes. ... -
Expanding compressed air demand side management through selective level control
(North-West University (South Africa)., 2022)Compressed air is a resource which is used across the deep-level mining industry for a variety of purposes throughout the 24-hour mining cycle. It has been noted that compressed air is a particularly inefficient source ... -
Experimental investigation of water absorption in polymer-matrix composite structures
(North-West University (South Africa)., 2022)Polymer-matrix composites (PMCs) are commonly used in modern sailplanes in the primary load-bearing structure. All competition-class sailplanes make use of water ballast tanks in the wings to improve performance in certain ... -
Determining the integrity of single-source condition-based maintenance data
(North-West University (South Africa)., 2022)Data plays a vital role in modern society. With an influx of sensors, data generation is rapidly increasing. Having access to these vast amounts of data enables data-driven decision-making. However, reliable data are needed ... -
Traffic control centre optimisation through applied intelligent weigh-inmotion
(North-West University (South Africa)., 2022)Transport logistics are of utmost importance in all countries because they ensure that goods are efficiently delivered to businesses and thus assist in trade facilitation. A country such as South Africa, where the primary ... -
Effect of alkaline activator composition on the geopolymer properties produced from South African power station fly ash
(North-West University (South Africa)., 2022)Eskom produce ~36 million tons of ash annually, of which 90 % is fly ash. Only 7 % of the ash is valorised; much lower than the global average of ~75 %. Geopolymer production from fly ash, as a Portland cement substitute, ... -
Designing a Lean and Green framework for the reduction of GHG emissions in the South African manufacturing industry
(North-West University (South Africa)., 2021)Lean and Green is a hybrid philosophy that combines the operational efficiencies of Lean with the environmental consciousness instilled by Green philosophy. However, the South African manufacturing industry experiences ... -
A benchmark two-tank heated system emulating typical fault conditions
(North-West University (South Africa)., 2022)The need exists for a benchmark multi-domain practical system that could emulate typical process faults for the purposes of condition monitoring. A proposition was made to develop a heated two-tank system, due to its ... -
A systems-based comparative assessment of corridor bottlenecks : the case of Beira Corridor
(North-West University (South Africa)., 2022)The existence of alternative routes to serve landlocked countries within the Southern African Development Community (SADC) and the resulting competition between corridors provides the backdrop to this comparative study. ... -
An integrated simulation-based method for deep-level mine dewatering planning
(North-West University (South Africa)., 2022)The South African gold mining industry has declined rapidly over the last decades. The main contributors are rising operational costs and fluctuating gold prices. Due to increased electricity costs and increased mining ...