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Now showing items 1-10 of 56
Validation of the point kinetic neutronic model of the PBMR
(North-West University, 2007)
This study introduces a new method for the validation of the point kinetic neutronic model of
the PBMR. In this study the diffusion equation solution, as implemented in the TlNTE
PBMR 268 MW reactor model, replaces the ...
Modelling a pebble bed high temperature gas-cooled reactor using a system-CFD approach
(North-West University, 2007)
The objective of this study was the development of a systems-CFD model of the PBMR reactor
that used the minimum number of grid points to achieve grid independence. The number of grid
points is reduced by increasing the ...
Condition monitoring of active magnetic bearing systems
(North-West University, 2007)
In this thesis, the author contextualises condition monitoring of active magnetic bearing (AMB) systems and proposes the real-time condition monitoring of AMB systems. Three real-time fault detection, diagnosis, correction ...
Demand-side energy management of a cascade mine surface refrigeration system
(North-West University, 2007)
The investigations focus on load shifting, load clipping and energy efficiency through control strategies. Load shifting is achieved by increasing the amount of work done in the Eskom non-peak period. This then results in ...
The preparation of activated carbon from South African coal for use in PGM extraction
(North-West University, 2007)
Activated carbons used in the Platinum Group Metals extraction industry are characterised by large internal surface areas and a great affinity for platinum, palladium and ruthenium. It is therefore necessary in this study ...
Benchmarking of process safety management elements in the South African process industry
(North-West University, 2007)
This study is a benchmarking exercise aimed at identifying the variation in the practice - within the South African process industry - of three process safety management (PSM) elements, namely: Management of Change (MOC), ...
An improved model for self-sensing heteropolar active magnetic bearings
(North-West University, 2007)
Active magnetic bearings (AMBs) use position feedback to actively control the forces generated by electromagnetic transducers, in order to realise stable suspension of a levitated object. The AMB concept is not new and ...
Investigating the effects of different DSM strategies on a compressed air ring
(North-West University, 2007)
A large growth in the South African electrical power demand has created a situation where the primary electricity supplier, Eskom, is in dire need of generating additional electricity during peak demand times. The current ...
Analysing DSM opportunities on mine conveyor systems
(North-West University, 2007)
The demand for electricity around the globe is increasing at an alarming rate. South Africa is no exception with electricity demand that has increased to a point where it is close to the maximum available capacity. Most ...
Solvent extraction of South African coal using a low volatile, coal-derived solvent
(North-West University, 2007)
Coal is an important fuel for countries with large coal reserves such as South Africa since it is expected that oil and natural gas prices will continue to rise. The Waterberg coalfield contains 40% of South Africa's ...