Browsing Theses and Dissertations (Mechanical and Aeronautical Engineering) by Supervisor "Meyer, Josua P."
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- Browsing Theses and Dissertations (Mechanical and Aeronautical Engineering) by Supervisor
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Browsing Theses and Dissertations (Mechanical and Aeronautical Engineering) by Supervisor "Meyer, Josua P."
Now showing items 1-20 of 109
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(University of Pretoria, 2015)This document focuses on the procedure and results of creating a thermohydraulic model of the secondary cooling system of the SAFARI-1 research reactor at the Pelindaba facility of the South African Nuclear Energy Corporation ...
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(University of Pretoria, 2017)Secondary flow structures account for nearly 50% of aerodynamic losses experienced in the turbine blade passages. The adverse effects of these vortex structures transport the hot mainstream fluid towards the endwall blade ...
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(University of Pretoria, 2019)Elevated inlet temperature is desirable in turbine passages. This is not without a whole lot of aerodynamic loss, endwall thermal stresses consequences and pressure loss penalties most especially downstream of the turbine ...
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(University of Pretoria, 2022)A recuperated solar-dish Brayton cycle using an off-the-shelf turbocharger as a micro-turbine and a rectangular cavity receiver with integrated thermal storage was considered for this study. Due to the high temperatures ...
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(University of Pretoria, 2014)This study focused on a numerical second law analysis and optimisation of a receiver tube op- erating in a parabolic trough solar collector for small-scale application. The receiver functioned in a Rankine cycle. The ...
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(University of Pretoria, 2020)Concentrated solar power is a growing but expensive alternative energy resource. One of the most common issues faced when it comes to solar dish design is the complex trade-off between cost and optical quality. A novel ...
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Analysis of Conjugate Heat Transfer and Pressure Drop in Microchannels for Different Aspects Ratios (University of Pretoria, 2016)In this study the heat transfer and hydrodynamic parameters were experimentally investigated for a single microchannel housed in a stainless steel solid base material for different aspect ratios in the laminar regime with ...
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(University of Pretoria, 2015)Nanofluids show great potential for conventional heat transfer fluids that could benefit industries and save huge costs. Nanofluids are well known for enormously enhancing the thermal conductivity of a base fluid. However, ...
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(University of Pretoria, 2019)South Africa is plagued by rolling blackouts, and many citizens do not have access to electricity or clean water. A personalised micro-turbine power generation system presents a solution to this issue and may become as ...
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(University of Pretoria, 2009-06-29)In a typical modern gas turbine engine, the nozzle guide vanes (NGVs) endure the highest operating temperatures. There exists a great drive in the turbine industry to increase the turbine inlet temperatures leading to ...
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(University of Pretoria, 2023)Thermal management of densely packed chips is critical for developing prevailing chips. For years, conventional air-cooling techniques have been utilised for numerous microsystems where fans and heat sinks were used in ...
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(University of Pretoria, 2019)Condensation has been extensively investigated from as early as 1914. However, there are several gaps in the literature, especially for in tube condensation at low mass fluxes and inclined tubes. Until now, no study has ...
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(University of Pretoria, 2016)Microchannels and micro pin fins have been employed for almost four decades in the cooling of microelectronic devices and research is still being done in this field to improve the thermal performance of these micro heat ...
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(University of Pretoria, 2011-07-14)The demand for smaller but more powerful electronic components is ever increasing. This demand puts a strain on engineers to produce optimal cooling designs for these electronic components. One method for cooling these ...
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(University of Pretoria, 2007-07-09)This work details a multigrid-accelerated cut-cell Cartesian mesh methodology for the solution of a single partial differential equation set that describes incompressible as well as compressible flow. The latter includes ...
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(University of Pretoria, 2008-07-11)Acute Liver Failure (ALF) is a devastating ailment with a high mortality rate and limited treatment alternatives. This study presents a methodology for the design and development of a bio-artificial bioreactor to be used ...
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(University of Pretoria, 2017)Space cooling energy demand is projected to increase due to climate changes. For example, the South African climate change model projected warming to reach around 3 to 4°C along the coast, and 6 to 7°C in the interior. ...
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(University of Pretoria, 2017)Several applications, including those in the energy sector that require high thermal efficiency, such as those in the solar energy industry, require a careful thermal analysis of heat exchange components. In this regard, ...
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Development of numerical techniques for evaluation of point-focus solar cavity receiver performance (University of Pretoria, 2018)Solar receiver cavities, which are designed to absorb large amounts of concentrated solar irradiation, form the central component of a solar collection plant. Since this receiver’s efficiency is directly proportional to ...
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(University of Pretoria, 2012-10-01)This work details the development of a computational tool that can accurately model strongly-coupled fluid-structure-interaction (FSI) problems, with a particular focus on thin-walled structures undergoing large, geometrically ...
Now showing items 1-20 of 109