Browsing Engineering by Issue Date
Now showing items 21-40 of 1403
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The direct conversion of synthesis gas to chemicals
(Potchefstroom University for Christian Higher Education, 2002)The catalytic conversion of synthesis gas, obtainable from the processing of coal, biomass or natural gas, to a complex hydrocarbon product stream can be achieved via the Fischer-Tropsch process. The Fischer-Tropsch synthesis ... -
Simulation of the human energy system
(North-West University, 2002)Preface - Biotechnology is generally accepted to be the next economical wave of the future. In order to attain the many benefits associated with this growing industry simulation modelling techniques have to be implemented ... -
Development of a novel active muzzle brake for an artillery weapon system
(Potchefstroom University for Christian Higher Education, 2002)A conventional muzzle brake is a baffle device located at some distance in front of the muzzle exit of a gun. The purpose of a muzzle brake is to alleviate the force on the weapon platform by diverting a portion of the ... -
Modelling of losses in multi-stage axial compressors with subsonic conditions
(North-West University, 2003)The need was identified to develop an analytical performance prediction code for subsonic multistage axial compressors that can be included in network analysis software. It was found that performance calculations based ... -
A new integrated procedure for energy audits and analyses of buildings
(North-West University, 2003)A rapid growth in the national electricity demand is placing an ever-increasing demand on the national electricity supply utility, Eskom. Projections show that the load demand in South Africa may exceed the installed ... -
Steel slab surface quality prediction using neural networks
(North-West University, 2003)Columbus Stainless grinds the majority of the steel slabs that are produced to improve the surface quality. However, the surface quality of some slabs is good enough not to be ground. If a reliable method can be found to ... -
The design and implementation of information systems for ESCO energy savings software
(North-West University, 2003)Electricity cost of buildings is a major expense for building owners. Improvements in the efficient utilisation of energy is therefore of concern to this economic sector. Unfortunately, existing energy audit tools are ... -
Simulation and optimisation of gas storage tanks filled with capacitance
(North-West University, 2003)The Pebble Bed Modular Reactor (PBMR) is a revolutionary small, compact and safe nuclear power plant. It operates on a direct closed Brayton cycle. One of the unique features of this concept is its load following capability ... -
The numerical modelling of a flue gas precipitator
(North-West University, 2003)Suspended fly-ash particles in industrial emission gasses have a major degrading effect on the whole environment. Electrostatic precipitation is one of the oldest and most effective gas-cleaning processes used today. ... -
Thermo-fluid simulation of a rotating disc with radial cooling passages
(North-West University, 2003)Turbine blade cooling via internal cooling channels is a very important aspect in modern-day gas turbine cycles. The need for blade cooling stems from the fact that higher cycle efficiencies requires higher maximum ... -
Network simulation for the effective extraction of IP network statistics
(North-West University, 2003)This study investigates the extent to which a communication sessions' QoS parameters can be measured through only extracting TCP/IP header data. The effect on these measurements based on the point of header extraction ... -
Investigation, development and testing of a low cost Solar Heat Barrow (SHB) and purifier
(North-West University, 2003)Many rural communities in South Africa do not have running water or electricity. The fetching and heating of water is therefore a time consuming and expensive daily ritual. The use of energy sources such as wood or coal ... -
Assessment of the national DSM potential in mine underground services
(North-West University, 2003)ESKOM is moving towards a price structure for electricity which reflects, as far as possible, the real cost of generation. It is called real time pricing (RTP). ESKOM developed this cost structure to coax customers to ... -
New standards of thermal design to provide comfort and energy efficiency in South African housing
(North-West University, 2003)The fundamental objective of this thesis is to determine whether the requirements for thermal comfort in housing in South Africa will provide for the necessary levels of energy efficiency. The effectiveness of various ... -
The structural design of the tailplane of the JS1 glider
(North-West University, 2003)A new technique was developed with which to accurately predict the mechanical properties of composite materials without the influence of fluctuating thickness of the composite due to the matrix material. Using this technique ... -
Thermo-hydraulic analysis of the PBMR used fuel tank using computational fluid dynamics
(North-West University, 2003)The Pebble Bed Modular Reactor (PBMR) is a 4th generation nuclear reactor based on the HTR-Modul of Siemens currently being developed by Eskom in South Africa. The major safety characteristics of the PBMR are the ... -
An explicit method for the analysis of transient compressible flow in pipe networks
(North-West University, 2003)This thesis deals with the development of an explicit pipe network analysis code for the benchmarking of Flownet. Flownet is a general-purpose thermal-fluid network analysis code used as a tool in the design of the Pebble ... -
Solar heating and disinfection of water : an application for rural areas in Southern Africa
(North-West University, 2003)Life is not easy for the low-income rural population of Southern Africa. This includes those living in the informal settlements around cities. It is in part due to shortcomings in basic services such as water, sanitation ... -
The innovation process of a universal remote access device
(North-West University, 2003)A small design firm faces several risks when designing a new product. One of the biggest risks is not knowing the potential demand for a product that they might want to produce and market. Small firms have limited resources ... -
The characterisation of the corrosion and degradation of atomised ferrosilicon in a dense medium circuit
(North-West University, 2003)The Kumba Resources Sishen Iron Ore Mine is one of the biggest iron ore producers in South Afica, where beneficiation of the iron ore is done using a dense medium separation process. Ferrosilicon is used as the dense medium ...