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Browsing by Author "Grobler, Jan-Hendrik"

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An aerodynamic CFD analysis of inlet swirl in a micro-gas turbine combustor

Author: Meyers, Bronwyn C ; Grobler, Jan-Hendrik ; Snedden, GC Date: Jul 2023 A combustor was designed for a 200N micro-gas turbine [1, 2] using the NREC preliminary combustor design method [1, 2, 3]. During the design process, there are various aspects where there are no definitive methodologies for specifying the ... Read more
Comparison of predicted design efficacy and environmental assessment for tuberculosis care facilities in South Africa

Author: Nice, Jako A ; Kumirai, Tichaona ; Conradie, Dirk CU ; Grobler, Jan-Hendrik Date: Dec 2015 The impact of Tuberculosis (TB) is of epidemic proportions in South Africa (SA) being one of the developing countries. Furthermore, studies seem to indicate that health care facilities are contributing to the spread of Mtb (Eshun-Wilson et ... Read more
Developing demand driven ventilation criteria for airborne infection control in congregate spaces

Author: Van Reenen, Tobias H ; Grobler, Jan-Hendrik Date: Jul 2020 This article presents the case that 12 air changes per hour (ACH) does not provide adequate control against the amplification of disease in different indoor congregate settings. It proposes an occupancy and risk-based algorithm for determining ... Read more
Evaluating the efficacy of solar chimneys for heating and cooling: A case study

Author: Grobler, Jan-Hendrik ; Conradie, Dirk CU ; Van Wyk, Llewellyn V Date: Mar 2019 The Department of Science and Technology (DST) together with the Eastern Cape Department of Education (ECDOE) are co-funding the construction of a science centre in the village of Cofimvaba in the Eastern Cape. The purpose of the science ... Read more
The importance of integrated system design for the effectiveness of portable air cleaners in airborne infection

Author: Van Reenen, Tobias H ; Salie, F ; Jensen, P ; Nardell, E ; Grobler, Jan-Hendrik Date: Dec 2013 The results of the recent study into the effectiveness of portable air cleaners (PACs), as an infection control measure against TB, delivered unexpectedly low results. That finding initiated a further study to understand the contribution of ... Read more
Modelling of fluid-solid interaction using two stand-alone codes

Author: Grobler, Jan-Hendrik ; de Villiers, R ; Cooper, Antony K Date: Jan 2010 A method is proposed for the modelling of fluid-solid interaction in applications where fluid forces dominate. Data are transferred between two stand-alone codes: a dedicated computational fluid dynamics (CFD) code capable of free surface ... Read more
The numerical aerodynamic investigation of swirling inlet flow in a vaporizer tube micro-gas turbine combustor

Author: Meyers, Bronwyn C ; Grobler, Jan-Hendrik ; Snedden, GC Date: Sep 2022 A combustor was designed for a 200N micro-gas turbine for the model aircraft industry using the NREC design method. Multiple designs resulted which varied in terms of annular area split configuration, hole area splits and relative hole ... Read more
Performance of a solar chimney by varying design parameters

Author: Kumirai, T ; Grobler, Jan-Hendrik ; Conradie, Dirk CU Date: Aug 2015 Trombe walls and solar chimneys are not widely used or well known in South Africa. A previous Green Building Handbook article described the University of Fort Hare teaching complex in East London (Stratford, 2012) that inter alia used a trombe ... Read more
The use of physics engines in quantifying breakwater damage

Author: Gledhill, Irvy MA ; Greben, JM ; Cooper, Antony K ; De Villiers, R ; Grobler, Jan-Hendrik Date: 08 Jul 2013 The response of proposed breakwater packing strategies to incident waves is usually tested and evaluated in a model hall. There is currently also increasing interest in using numerical simulations to model both the packing of a breakwater, ... Read more

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Browsing by Author "Grobler, Jan-Hendrik"

Browsing by Author "Grobler, Jan-Hendrik"

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All of ResearchSpace

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