Browsing Engineering by Title
Now showing items 990-1009 of 1403
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Object-oriented multi-physics applied to spatial reactor dynamics
(North-West University, 2007)Traditionally coupled field reactor analysis has been carried out using several loosely coupled solvers, each having been developed independently from the others. In the field of multi-physics, the current generation of ... -
Object-oriented software development applied to adaptive resolution control in two-fluid models
(North-West University, 2004)The accuracy of two-phase flow simulations is mainly determined by the mathematical formulations and resolution of the computational mesh used in the numerical model. Selective mesh refinement improves the accuracy of ... -
Objective evaluation of industrial energy efficiency models for the RSA Section 12L tax incentive
(North-West University, Potchefstroom Campus, 2018)The industrial sector is the largest energy consumer in South Africa. There are numerous initiatives that can be implemented in order to reduce the energy intensity of the various industrial processes. Section 12L of the ... -
'n Omvattende nasionale bestuursraamwerk vir kragstelselbelemmering deur aaneengeskakelde ontwrigting van kragontwikkeling in Suid–Afrika
(North-West University, 2012)This desertation shows that a unique class of network disruption exists that can be regarded in isolation of other classes of network disturbances, namely cascade disruption of generation (COG). This class of disturbance ... -
On-line monitoring of a transmission line using synchrophasor measurements
(North-West University, 2018)The research assessed the possibility of using a wide area measurement system that uses synchrophasor data to calculate operational limits of an overhead line. These applications have become achievable to utility companies ... -
A one–dimensional multi–group collision probability code for neutron transport analysis and criticality calculations
(North-West University, 2012)This work develops a one dimensional, slab geometry, multigroup collision probability code named Oklo which solves both criticality calculations and fixed source problems. The code uses the classical collision probabilities ... -
Operational optimization of the Necsa SAFARI-1 neutron diffraction strain scanner
(North-West University (South Africa) , Potchefstroom Campus, 2017)This thesis reports on research performed by D. Marais during the period February 2012 to November 2016 at the South African Nuclear Energy Corporation (Necsa) SOC Limited. During this period, the Radiation Science division ... -
Operations and investment modelling of an energy microgrid with mixed-integer linear programming
(North-West University (South Africa)., 2023)The increase in electricity demand worldwide is driven by economic growth and a rising population. The traditional power system, which is based on a centralised network, is facing many challenges and is not capable of ... -
Opportunity for synchrophasors in monitoring sources of renewable energy integrated into distribution networks
(North-West University, Potchefstroom Campus, 2016)Synchrophasor measurements have traditionally been reserved for monitoring the operation of transmission systems. This technology enabled direct supervision over transmission system operation without any complex estimation ... -
The optimal hydraulic diameter of semicircular and triangular shaped channels for compact heat exchangers
(North-West University, 2010)All heat pump cycles have one common feature that connects them to one another; this feature is the presence of a heat exchanger. There are even some heat–driven cycles that are completely composed of heat exchangers, every ... -
Optimal mine water management to improve ambient conditions
(North-West University (South Africa), 2021)The local mining industry in South Africa is experiencing a decline in gold production. This is due to unique production challenges faced by the industry. One of the major concerns is the production cost associated with ... -
Optimal power control of a three-shaft Brayton cycle based power conversion unit
(North-West University, 2005)The aim of this study is to develop a control system that optimally controls the power output of a Brayton cycle based power plant. The original design of the PBMR power plant is considered. It uses helium gas as working ... -
Optimal resource allocation in Virtual Network Embedding
(North-West University (South Africa), 2019)Optimal resource allocation has become a focus in the technological environment due to the high costs associated with physical infrastructure and space. Furthermore, Network Operators (NO)s have to keep up with the rate ... -
Optimal use of mobile cooling units in a deep-level gold mine
(North-West University (South Africa), 2019)South Africa has an international advantage in terms of gold deposit endowment, however there are several challenges faced by the gold mining sector that hinder the realisation of the country's full production potential. ... -
Optimal utilization of a three-chamber pipe feeder system
(North-West University, 2018)South African gold production is decreasing year-on-year. This can be attributed to numerous challenges faced by the gold mining industry. One of these challenges is high operating costs of which electricity forms a large ... -
An optimisation approach to improve the throughput in wireless mesh networks through network coding
(North-West University, 2011)In this study, the effect of implementing Network Coding on the aggregated throughput in Wireless Mesh Networks, was examined. Wireless Mesh Networks (WMNs) are multiple hop wireless networks, where routing through any ... -
An optimisation approach to investigate quality control of a product coal stockpile
(North-West University, 2012)For any coal beneficiation group to reach the full financial potential in coal production, optimal coal cleaning processes are of great importance. The heterogenic nature of coal is the main constraint in producing a ... -
Optimisation criteria of a Rankine steam cycle powered by thorium HTR
(2014)HOLCIM has various cement production plants across India. These plants struggle to produce the projected amount of cement due to electricity shortages. Although coal is abundant in India, the production thereof is in ... -
Optimisation of mine secondary fan systems
(North-West University (South Africa)., 2020)The rising cost of electricity in South Africa has driven deep-level gold mines to save on costs. The optimisation of mine ventilation systems has shown significant potential for energy savings. A literature study showed ... -
Optimisation of passive optical network design under demand uncertainty
(North-West University (South Africa) , Potchefstroom Campus, 2016)The Passive Optical Network (PON) is a point-to-multipoint, optical fibre telecommunication network used at the access level, in which a signal is distributed via a single fibre from the Central Office (CO) to a number ...