Browsing Engineering by Author "10184600 - Du Toit, Charl Gabriel De Kock (Supervisor)"
Now showing items 1-7 of 7
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1D and 3D simulation of a water cooled reactor cavity cooling system experimental facility
Niemand, Peter Francke (North-West University (South Africa)., 2021)The fourth-generation nuclear reactors have many safety features, including the reactor cavity cooling system (RCCS). This system is intended to remove decay heat from the reactor cavity. Designs exist for both air-cooled ... -
Analysis of the pressure drop through structured packed beds
Van Loggerenberg, P.J. (North-West University (South Africa), 2020)Accurately analysing the pressure drop over structured packed beds is of great importance to certain reactor designs, such as the Pebble Bed Modular Reactor (PBMR). In previous studies, the High Pressure Test Unit (HPTU) ... -
Analysis of the radial, axial and tangential porosity variations of packed beds of spheres
Bester, Paul Machiel (North-West University (South Africa)., 2022)The porosity of a packed bed of spherically shaped particles influences different thermo-hydraulic phenomena in such packings. An understanding of the porous structures in such packings is therefore important for the design, ... -
Characterisation of the effective thermal conductivity in the near wall region of a packed pebble bed
Maritza, De Beer (North-West University (South Africa)., 2021)The effective thermal conductivity is an important parameter that is representative of the overall heat transfer in a packed bed of spheres. An accurate prediction of the effective thermal conductivity is necessary for the ... -
Investigation into different 1D/3D thermal fluid co-simulation methodologies as applied to HTR system configurations
Koekemoer, Ockert Cornelius (North-West University (South Africa)., 2022)The current PhD research focuses on the investigation into different 1D/3D thermal fluid co-simulation methodologies as applied to HTR system configurations. For the modelling and simulation of complex systems, 1D/3D ... -
Suction recirculation mitigation in a double-suction centrifugal pump
Van der Walt, J.P. (2021)Suction recirculation in centrifugal pumps operating at o˙-design conditions is an eventual reality for all centrifugal pumps. Various types of modifications to both the pump impeller and/or volute have been implemented ... -
The zonal approach applied to the simulation of the radiative heat transfer in a packed pebble bed
Van der Walt, S. (North-West University (South Africa), 2020)The Fukushima Daiichi Nuclear Disaster highlighted the importance of nuclear safety and the importance of modeling a nuclear reactor under diverse conditions. Applied to pebble bed reactors, these diverse conditions include ...