Browsing by Thesis Type
Now showing items 1-20 of 217
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1D and 3D simulation of a water cooled reactor cavity cooling system experimental facility
(North-West University (South Africa)., 2021)The fourth-generation nuclear reactors have many safety features, including the reactor cavity cooling system (RCCS). This system is intended to remove decay heat from the reactor cavity. Designs exist for both air-cooled ... -
The adaptive predictive control of an energy efficient central water heating system applied in the South African commercial sector
(North-West University (South Africa), Potchefstroom Campus, 2016)Since the introduction of load shedding in the latter part of 2007, Eskom, the electrical utility of South Africa, have been forced to implement energy efficient and energy management measures to ensure the stability of ... -
Adsorption properties of South African bituminous coals relevant to carbon dioxide storage
(North-West University (South Africa) , Potchefstroom Campus, 2017)An investigation was undertaken to determine the sorption properties of South African bituminous coals relevant to carbon dioxide storage in unmineable coal seams. Four bituminous coal samples from underground coal seams ... -
An alternative approach for sustainable industrial DSM in South Africa
(North-West University (South Africa) , Potchefstroom Campus, 2016)Eskom generates 95% of the electricity consumed in South Africa. As a result of insufficient generation capacity, Eskom is struggling to meet the growing electricity demand. Load shedding had to be implemented during 2014 ... -
The application of signal processing and artificial intelligence techniques in the condition monitoring of rotating machinery
(North-West University, 2003)Condition monitoring of critical machinery has many economic benefits. The primary objective is to detect faults, for example on rolling element bearings, at an early stage to take corrective action prior to the catastrophic ... -
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 ... -
An approach to authenticate magnetic stripe bank card transactions at point-of-sale terminals
(North-West University (South Africa) , Potchefstroom Campus, 2015)Magnetic stripe card technology has been deployed for more than five decades worldwide and is extensively used in banking. Data embedded in them are often relied upon as a benchmark for user authentication. As such reliance ... -
Assessment model for annual worker radiation dose calculation for the 400MWth PBMR plant
(North-West University (South Africa), 2014)Increasing demands on energy supplies have renewed interest in high temperature gas-cooled reactors such as the Pebble Bed Modular Reactor. However, public pressure due to nuclear power plant accidents, such as at Chernobyl, ... -
Assessment of the national DSM potential in mine underground services
(North-West University, 2003)ESKOM is moving towards a price structure for electricity which reflects, as far as possible, the real cost of generation. It is called real time pricing (RTP). ESKOM developed this cost structure to coax customers to ... -
Automatic speech recognition for resource–scarce environments
(North-West University, 2013)Automatic speech recognition (ASR) technology has matured over the past few decades and has made significant impacts in a variety of fields, from assistive technologies to commercial products. However, ASR system development ... -
Automation of compressor networks through a dynamic control system
(2014)Compressed air makes up an important part of South African precious metal mining processes. Rising operational costs in the struggling mining sector increased the interest of the power utility, Eskom, and mine management ... -
Benchmarking electricity use of deep-level mines
(North-West University (South Africa) , Potchefstroom Campus, 2016)Electricity consumption, and the cost thereof, has become a large contributor to operating costs in deep-level mining in South Africa. Up to 60% of electricity used on deep-level mines can be attributed to five high power ... -
Bitstream specialisation for dynamic reconfiguration of real-time applications
(2015)The focus of this thesis is on specialising the configuration of a field-programmable gate array (FPGA) to allow dynamic reconfiguration of real-time applications. The dynamic reconfiguration of an application has numerous ... -
The caking and swelling of South African large coal particles
(2015)The swelling and caking propensity of coals may cause operational problems such as channelling and excessive pressure build-up in combustion, gasification and specifically in fluidised-bed and fixed-bed operations. As a ... -
Characterisation and reaction kinetics of high ash chars derived from inertinite-rich coal discards
(North-West University, 2007)An investigation was undertaken to determine the gasification and combustion characteristics of chars derived from an inertinite-rich coal discard sample with a high ash content. Fundamental knowledge of the reaction rate ... -
Characterisation of the effective thermal conductivity in the near wall region of a packed pebble bed
(North-West University (South Africa)., 2021)The effective thermal conductivity is an important parameter that is representative of the overall heat transfer in a packed bed of spheres. An accurate prediction of the effective thermal conductivity is necessary for the ... -
Chitosan membranes for the removal of zinc from simulated wastewater
(North-West University, 2006)The utilisation of South African produced chitosan membranes for the removal of heavy metal ions from contaminated water was explored. South African produced chitosan was used to manufacture membranes for the adsorption ... -
Co-pyrolysis of torrefied biomass and coal : product evaluation and reaction modelling
(North-West University (South Africa)., 2022)The co-utilization of biomass and coal in existing coal-based conversion technologies has received increasing interest for its ability to reduce the dependence on fossil fuels and produce high quality products. However, ... -
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 ... -
A comparison between high airflow drying and adsorption assisted drying for the dewatering of fine coal
(North-West University (South Africa), 2019)Development in the fossil fuel sector should be an on-going process to promote sustainability, while reducing the environmental footprint. It is important to improve operations in the mining sector to ensure that coal is ...