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Investigating the dewatering energy savings potential of an open pit mine
(North-West University (South Africa), 2020)
The South African mining industry is heavily reliant on its electricity supply from Eskom. Due to the increasing cost of electricity, it is crucial to reduce the consumption thereof and thereby increasing the profitability ...
CFD modelling of air flow through a finned coil heat exchanger to improve heat transfer and pressure drop predictions
(North-West University (South Africa), 2020)
In the current study, a method of lessening computational expense and model design effort is investigated for finned coil heat exchangers (FCHXs) by using STAR-CCM+ as simulation tool. The simulation model prediction ...
Design and evaluation of a vibration ore flow restore machine
(North-West University (South Africa), 2021)
Ore passes provide a low cost method for gravitational transport of broken ore and waste rock through long vertical distances to lower levels of an underground mine. A hang-up or blockage in an ore pass is undesirable as ...
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 ...
Energy savings potential of CO2 heat pumps in the South African industrial sector
(North-West University (South Africa)., 2021)
The South African industrial sector is the largest energy user, accounting for more than a third of the country’s energy usage and 80% of the heat demand. Heat pumps (HP) have the potential of reducing the industrial energy ...
The simulation of a commercial-scale, hybrid solar and heat pump water heating system
(North-West University (South Africa), 2021)
Due to the rotation of the earth and climatic conditions, the available solar radiation varies, not
only in the 24-hour period but also daily. The latter poses a significant challenge to the designer
of solar water heating ...
Thermal fluid modelling of a titanium fluted tube condenser
(North-West University (South Africa), 2021)
Heat exchangers form a vital component in numerous energy conversion processes, ranging over multiple industries; such as mining, food, automotive and aerospace. With the continuous population growth and a drive towards ...
Techno-economical evaluation of domestic water heating technologies
(North-West University (South Africa), 2021)
Water heating accounts for up to 40% of the total energy consumption in an average residential household. With the drastic rise in electricity prices over the last decade, the use of renewable and alternative methods of ...
Energy-based fault detection and isolation in an industrial steam turbine system
(North-West University (South Africa), 2021)
System monitoring, especially with the Industry 4.0 push to automate the industry, is becoming more crucial for the successful operation of industrial systems. The effective and early detection and isolation of faults is ...
Design and evaluation of a vibration ore flow restore machine
(North-West University (South Africa)., 2021)
Ore passes provide a low cost method for gravitational transport of broken ore and waste rock through long vertical distances to lower levels of an underground mine. A hang-up or blockage in an ore pass is undesirable as ...