Browsing Faculty of Engineering by Title
Now showing items 53-72 of 1122
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The application of system CFD to the design and optimization of high-temperature gas-cooled nuclear power plants
(ASME, 2008)The objective of this paper is to model the steady-state and dynamic operation of a pebble-bed-type high temperature gas-cooled reactor power plant using a system computational fluid dynamics (CFD) approach. System CFD ... -
Applications of additive manufacturing at selected South African universities: promoting additive manufacturing education
(Emerald, 2019)Purpose This paper aims to provide a comprehensive overview of the recent applications of additive manufacturing (AM) research and activities within selected universities in the Republic of South Africa (SA). Design/ ... -
Applying spontaneous adiabatic test procedure to determine CO2 gasification reactivity and kinetics of coal for UCG applications
(PCC, 2018)UCG is a gasification process used to produce synthesis gas from coal in situ (underground in the coal seam) by injecting air or oxygen, with or without steam, into coal seams and extracting the product gas via the ... -
Applying systems thinking in shaping South Africa's electricity system
(Wiley, 2014)The paper analyses the current situation in respect of South Africa's electricity situation and asks the question if Systems Thinking, more specifically as it pertains to the theory of Complex Adaptive Systems, would make ... -
An approach to improve the match-on-card fingerprint authentication system security
(IEEE, 2016)The combination of smart cards and biometrics results in a strong 2-factor authentication. It facilitates a trusted credential for authenticating an individual's identity through one-to-one biometric verification using the ... -
Aqueous solubility of Cr(VI) compounds in ferrochrome bag filter dust and the implications thereof
(WRC, 2017)The production of ferrochrome (FeCr) is a reducing process. However, it is impossible to completely exclude oxygen from all of the high-temperature production process steps, which may lead to unintentional formation of ... -
Assessing the catalytic effect of coal ash constituents on the CO2 gasification rate of high ash, South African coal
(Elsevier, 2011)The catalytic effect of inorganic species, within the ash, on the CO2 gasification of three South African coals containing similar carbon-structural properties (elemental, structural and petrographical properties) was ... -
Assessment and reduction of proliferation risk of reactor-gradeplutonium regarding construction of ‘fizzle bombs’ by terrorists
(Elsevier, 2014)The approximately 23.7 wt% 240Pu in reactor-grade plutonium denatures the 239Pu to the extent that it cannot fuel high yield nuclear weapons. 240Pu has a high spontaneous fission rate, which increases the spontaneous neutron ... -
Assessment of the performance of SDS-impregnated brewery waste as suitable adsorbent for the removal of Pb and Cd from water
(EARET, 2018)— Due to increasing populations and an ever-changing climate, limited water resources are South Africa’s burden. Clean water is important for all living organisms’ health and environmental sustainability. To achieve ... -
Assessment of the viability of Saccharomyces cerevisiae in response to synergetic inhibition during bioethanol production
(Indian Academy of Sciences, 2018)Second-generation biofuels, fuels produced from lignocellulosic materials, including wood, agricultural residues and biomass waste include bioethanol, biodiesel and biogas. These fuel sources have great potential as ... -
Attenuation effect with non-linear loads for small stand-alone grids
(IEEE, 2016)This paper presents the effect of non-linear loads on the overall voltage quality in small powered stand-alone (islanded) systems. The iterative effect between current and voltage distortion is related to the source's ... -
Automated electricity bill analysis in South Africa
(Univ Stellenbosch, 2017)The ever-increasing cost of energy puts industries under pressure. Industries are forced to monitor their energy consumption and to manage energy more efficiently and responsibly. Some industrial companies have multiple ... -
Automatic alignment of audiobooks in Afrikaans
(Pattern recognition association of South Africa (PRASA), 2012)This paper reports on the automatic alignment of audiobooks in Afrikaans. An existing Afrikaans pronunciation dictionary and corpus of Afrikaans speech data are used to generate baseline acoustic models. The baseline system ... -
Automatic speech recognition for under-resourced languages: A survey
(Elsevier, 2014)Speech processing for under-resourced languages is an active field of research, which has experienced significant progress during the past decade. We propose, in this paper, a survey that focuses on automatic speech ... -
Axial-flux PM disk generator with magnetic gear for oceanic wave energy harvesting
(IEEE, 2019)Magnetic gears (MGs) offer many advantages over mechanical ones due to their contactless mechanism of torque transfer. With the flourish of this new avenue of research, a new breed of MGs has been designed that are well ... -
Behaviour of calcium-containing minerals in the mechanism towards in situ CO2 capture during gasification
(Elsevier, 2008)Mineral matter transformation and the behavior of mineral matter in the coal during gasification, provide more information on the suitability of a specific coal source for combustion or gasification purposes. Therefore, ... -
Behaviour of calcium-containing minerals in the mechanism towards in situ CO2 capture during gasification
(Elsevier, 2008)Mineral matter transformation and the behavior of mineral matter in the coal during gasification, provide more information on the suitability of a specific coal source for combustion or gasification purposes. Therefore, ... -
Behaviour of selected major elements during fixed-bed gasification of South African bituminous coal
(Elsevier, 2012)The Sasol–Lurgi Fixed Bed Dry Bottom gasifier (S–L FBDB) treats a feed coal containing c.a. 30% ash forming minerals, which means that there are complex mineralogical processes occurring simultaneously with each other, ... -
Benchmarking an expert fault detection and diagnostic system on the Three Mile Island accident event sequence
(Elsevier, 2013)Early fault identification systems enable detecting and diagnosing early onset faults or fault causes which allow maintenance planning on the equipment showing signs of deterioration or failure. This includes valve and ... -
Benchmarks for the validation of the heat transfer capabilities of one-dimensional system codes
(Begell House, 2019)The purpose of the reactor cavity cooling system in a nuclear plant is to effectively remove the heat released by the reactor pressure vessel. The reactor cavity cooling system must be able to operate safely in a natural ...