Browsing Faculty of Engineering@PUK by Title
Now showing items 34-53 of 267
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Coal cleaning residues and Fe-minerals implications
(Springer Science & Business Media, 2011)In the present investigation, a study was undertaken to understand the origin of Fe-minerals presents in Brazilian coal mining and to understand the environmental implication and the chemical heterogeneity in the study ... -
Code-to-code comparison for analysing the steady-state heat transferand natural circulation in an air-cooled RCCS using GAMMA+ and Flownex
(Elsevier, 2015)The GAMMA+ and Flownex codes are both based on a one-dimensional flow network modelling approach and both can account for any complex network of different heat transfer phenomena occurring simultaneously. However, there ... -
A comparative study of the processing scheme of chitosan and Nafion 117 in membrane electrode assembly
(Taylor & Francis, 2013)The authors considered two fabrication techniques in the fabrication of the membrane electrode assembly. It was observed that catalytic deposition through electro-spraying was not successful for chitosan and Nafion 117 ... -
A comparative study on fault detection and correction techniques on active magnetic bearing systems
(IEEE-Institute of Electrical and Electronics Engineers, 2007)In this paper, the authors distinguish between three real-time fault detection, correction and identification schemes for vibration forces on the rotor of a rotational active magnetic bearing (AMB) system. Historical fault ... -
Comparing the porosity and surface areas of coal as measured by gas adsorption, mercury intrusion and SAXS techniques
(Elsevier, 2015)In this paper, we compare the surface area, porosity and other physical–structural properties of four bituminous coals from three different coal fields of South Africa determined using carbon dioxide (CO2) and nitrogen ... -
Comparison of physical properties of oxidative sintered pellets produced with UG2 or metallurgicalgrade South African chromite: a case study
(The Southern African Institute of Mining and Metallurgy, 2015)The physical properties of oxidative sintered pellets produced from typical South African UG2 ore are compared with the physical properties of pellets produced with conventional South African metallurgical-grade chromite ore ... -
A computer based assessment system for undergraduate electrical engineering modules
(SAIEE, 2013)Good assessment is an essential component of good learning. Marking test and exam papers for large classes is however a time-consuming and repetitive task. This paper reports on the design and implementation of a computer ... -
Condition monitoring of medium voltage electrical cables by means of partial discharge measurements
(SAIEE, 2014)The purpose of this paper is to discuss condition monitoring (CM) of medium voltage electrical cables by means of partial discharge (PD) measurements. Electrical cables are exposed to a variety of operational and ... -
The continuous depolymerization of filled polytetrafluoroethylene with a continuous process
(Wiley InterScience, 2008) -
Cooperative pair problem solving: a strategy for problem solving tutorials in the engineering sciences
(Tempus Publications, 2015)Engineering science courses, such as Thermodynamics, are often seen as difficult, and students have difficulty understanding the concepts and solving the problems. In an effort to improve the situation, we developed a ... -
Correlating hardware fault detection information from distributed control systems to isolate and diagnose a fault in pressurised water reactors
(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 ... -
A current analysis and correction system for vibration forces on the rotor of a rotating active magnetic bearing system
(SAIEE (South African Institute of Electrical Engineers), 2007)In this paper, an on-line detection, correction and identification system for vibration forces on the rotor of a rotating active magnetic bearing is proposed. The on-line detection system performs current analysis by ... -
Density functional theory molecular modelling and experimental particle kinetics for CO2–char gasification
(Elsevier, 2015)Experimental measurements and DFT atomistic modelling were conducted to elucidate the mechanisms for gasification chemistry of char with CO2 gas. The molecular models used were based on experimental representations of coal ... -
Design a thermoelectric cooling holder supplied by photovoltaic panels
(2015)In this paper, the development of a portable solar power vaccine carrier box for local usage in Africa and South Africa is described. The purpose is to provide guidance to the design of a thermoelectric cooling holder. An ... -
Design and cost analysis of an automation system for swimming pools
(EE Publishers, 2012)A low-cost automation system to minimise energy consumption of circulation pumps and to regulate the chemical composition of the water in swimming pools -
The design and development of a stented tissue mitral and aortic heart valve replacement for human implantation
(Clinics Cardive, 2012)A study was conducted into the development of a mitral and aortic heart valve replacement that caters for patients having suffered valve damage due to stenosis or rheumatic fever. The appeal of the valve is that it is ... -
Design and heat flow analysis of a commercial energy efficient in-line water heating system
(Multi-Science Publishing, 2014)In this paper, the authors provide the design, heat flow analysis and pressure analysis of a commercial energy efficient in-line water heating system in South Africa. The designed commercial in-line water heating system ... -
Design of a prototype power line inspection robot
(2013)The purpose of this paper is to provide the design of a prototype power line inspection robot for the monitoring of Eskom transmission lines. It should also determine if an inspection robot would be a feasible solution ... -
Design of a prototype ultra-capacitor solar panel street light
(2013)The purpose of the paper is to describe and discuss the design of a prototype ultracapacitor solar panel street light. The effect of ultra-capacitors as an energy storage device in a solar panel street light is evaluated. ...
