Publications – Thermofluids

Boshoff, F., van der Spuy, S. & Pretorius, J. (2024). Axial Flow Fan Performance in a Forced Draught Air-Cooled Heat Exchanger for a sCO2 Brayton Cycle. Journal of Engineering for Gas Turbines and Power, vol. 147.

Boshoff, F., van der Spuy, S., Pretorius, J. & Meyer, C. (2024). Investigation into the predicted performance of a cooling fan for an sCO 2 concentrated solar power plant. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, vol. 238.

Chen, P., Kang, Y., Zhang, R., Cheng, Z., Deng, S., Erfort, G. & Hu, Z. (2024). A Response Frequency Informed Lstm Model For Ultra-Short-Term Mooring Line Forces Prediction Of Floating Wind Turbines.

Clark, S. & McGregor, C. (2024). Firm-Dispatchable Power and its Requirement in a Power System based on Variable Generation.

Clark, S. & McGregor, C. (2024). Implementation of Firm-Dispatchable Generation in South Africa.

Clark, S. & McGregor, C. (2024). du Sart, C., Rousseau, P. & Laubscher, R. 2024. A Method to Develop Radial Inflow Turbine Performance Maps for Off-Design and Dynamic Simulation Studies of sCO2 Cycles.

du Sart, C., Rousseau, P. & Laubscher, R. (2024). A method to develop centrifugal compressor performance maps for off-design and dynamic simulation studies of sCO2 cycles.

Grobler, L., Laubscher, R., Merwe, J. & Herbst, P. (2024). Evaluation of Aortic Valve Pressure Gradients for Increasing Severities of Rheumatic and Calcific Stenosis Using Empirical and Numerical Approaches. Mathematical and Computational Applications:33. vol. 10.

Haffejee, R., Rousseau, P. & Laubscher, R. (2024). Integrated Performance of a Modular Biomass Boiler With a Combined Heat and Power Industrial Rankine Cycle and Supplementary sCO2 Brayton Cycle. Journal of Thermal Science and Engineering Applications, 16:1-26. vol. 10.

Hassan, E.B.E. & Hoffmann, J. (2024). Review on pressure drop through a randomly packed bed of crushed rocks. Discover Applied Sciences, 6(3):126, vol. 10.

Hassan, E.B.E. & Hoffmann, J.E. (2024). Impact of flow direction on the isothermal pressure drop through a packed bed of crushed rock – A DEM-CFD approach. Powder Technology, 440.

Jacobs, A. & McGregor, C. (2024). Augmenting a Concentrated Solar Power (CSP) Plant With a Solar PV Plant. SolarPACES Conference Proceedings, 2, vol. 10.

Koke, J., Rozon, F. & McGregor, C. (2024). Analysing the Techno-Economic Viability of Different Solar Heating Systems in South African Beverage Plants.

Laubscher, R., Rousseau, P., van der Spuy, J., Sart, C.D. & Pretorius, J.P. (2024). Development of a 1D network-based momentum equation incorporating pseudo advection terms for real gas sCO2 centrifugal compressors which addresses the influence of the polytropic path shape. Thermal Science and Engineering Progress, vol. 55.

Laubscher, R., Rousseau, P., van der Spuy, S., Pretorius, J. & du Sart, C. (2024). Modelling of real gas compression using the finite volume thermofluid network methodology and mean-line approach for centrifugal compressors.

Ondiko, J., Hoffmann, J., Sebitosi, B., Ashish Chandran, K. & Sujith Kumar, C.S. (2024). A Systematic Review on Solar-Driven Interfacial Evaporation for Desalination. In: S. Das, N. Mangadoddy and J. Hoffmann, eds. Proceedings of the 1st International Conference on Fluid, Thermal and Energy Systems, Singapore. Springer Nature Singapore. 47-57.

Rousseau, P. & Laubscher, R. (2024). A Condition-Monitoring Methodology Using Deep Learning-Based Surrogate Models and Parameter Identification Applied to Heat Pumps. Mathematical and Computational Applications, 29:52, vol. 10.

Rozon, F., McGregor, C. & Owen, M. (2024). An Outlook on the Adoption of Renewable Energy Solutions at South African Beverage Manufacturers. 1.

Strydom, W., Pretorius, J. & Hoffmann, J. (2024). Corrigendum to Natural draft direct dry cooling system performance at various scales under windless and windy conditions [J. Appl. Therm. Eng. 248(Part A) (2024) 123181]. Applied Thermal Engineering, 252:123711. vol, 10.

Strydom, W., Pretorius, J. & Hoffmann, J. (2024). Strydom, W., Pretorius, J. & Hoffmann, J. 2024. Natural draft direct dry cooling system performance at various application scales under windless and windy conditions. Applied Thermal Engineering, 248.

Strydom, W., Pretorius, J. & Laubscher, R. (2024). Start-up and Transient Response Characteristics of Natural Draft Direct Dry Cooling Systems at Various Scales.

Terblanche, J., Merwe, J. & Laubscher, R. (2024). Linear and Non-Linear Regression Methods for the Prediction of Lower Facial Measurements from Upper Facial Measurements. Mathematical and Computational Applications, vol. 29.

Venter, A.J., Owen, M.T.F. & Muiyser, J. (2024). An Actuator-Disk Model Augmentation for Low-Pressure Axial Fan Simulation. Journal of Fluids Engineering, vol. 147.

Venter, A.J., Owen, M.T.F. & Muiyser, J. (2024). Benchmarking the Performance of the Actuator-Disk Method for Low-Pressure Axial Flow Fan Simulation. Journal of Fluids Engineering, vol. 147.

Venter, A.J., Owen, M.T.F. & Muiyser, J. (2024). The Effects of Rotation and Solidity on the Aerodynamic Behavior of Low-Pressure Axial Flow Fans. Journal of Fluids Engineering, vol. 146(5).

Wasserfall, J., Coetzee, C.J. & Meyer, C. (2024). A submerged draw down test calibration method for fully-coupled CFD-DEM modelling. vol. 6.

2023

Allen, T., Owen, M. (2023). Performance evaluation of a low-cost standing wave thermoacoustic refrigerator, 17^th International Heat Transfer Conference, Cape Town, South Africa, August 2023.

Ashish Chandran, K., Raj, A.K., Vaishnav, C., Sujith Kumar, C.S. & Hoffmann, J. (2023). Experimental analysis of patterned floating absorbers integrated thermal storage facilitating interfacial evaporation. Journal of Energy Storage, vol. 68.

Bekker, G., Meyer, C. and van der Spuy, S. (2023). The effect of wind screens on the performance of an induced draft air-cooled condenser under windless and windy conditions. Journal of Thermal Science and Engineering Applications, vol. 15.

Boshoff, F., van der Spuy, S., Pretorius, J. & Meyer, C. (2023). Investigation Into the Predicted Performance of a Cooling Fan for an sCO2 CSP Plant.

Clark, S. and McGregor, C. (2023). Liquified petroleum gas provides a technically viable and financially feasible means to reduce eskomâs diesel cost burden by 30 to 40 South African Journal of Science, vol. 119.

Clark, S. & McGregor, C. (2023). The Effect of HelioPod™ on Concentrated Solar Thermal Project Economics. Solar Compass, vol. 8.

du Sart, C., Rousseau, P. & Laubscher, R. (2023). Comparing the Partial Cooling and Recompression Cycles for a 50 Mwe Sco2 Csp Plant Using Detailed Recuperator Models.

Hoffmann, J. & Rayner, J. (2023). HEAT TRANSFER COEFFICIENT FOR RANDOMLY PACKED ELLIPSOIDS SUBJECT TO A CONSTANT HEAT FLUX.

Karamanski, S. & Erfort, G. (2023). Wind Energy Supply Profiling and Offshore Potential in South Africa. Energies, vol. 16.

Laugksch, K., Rousseau, P. and Laubscher, R. (2023). A pinn surrogate modeling methodology for steady-state integrated thermofluid systems modeling. Mathematical and Computational Applications, vol. 28.

Liebenberg, J., Doubell, A., Laubscher, R. and Herbst, P. (2023). In-silico modelling of the impact of hypertension on the mean transvalvular gradients in aortic stenosis. PloS one, vol. 18.

Marincowitz, F., Owen, M., Muiyser, J. (2023). Multi-objective optimisation for wind resistant air-cooled condenser operation, Applied Thermal Engineering, 218.

McGregor, C. & Snyman, L. 2023. DESIGN AND PERFORMANCE TESTING OF A STRUCTURED PACKING FOR THERMAL ENERGY STORAGE APPLICATIONS.

McGregor, C., Pretorius, J., Attieh, A. & Hoffmann, J. 2024. Techno-Economic Assessment of Electricity Generation From a Medium-Scale CSP-PV Hybrid Plant Using Long-Duration Storage. SolarPACES Conference Proceedings, vol. 2.

Meyer, J.P., Hoffmann, J.E. and Laubscher, R. (2023). Fundamental errors in historical studies on laminar internal convection in circular tubes with a uniform heat flux: New perspectives. In International Heat Transfer Conference Digital Library. Begel House Inc..

Nel, C., Owen, M. (2023). Thermal comfort and performance of subsidy housing in South Africa, 17th International Heat Transfer Conference, Cape Town, South Africa, August 2023.

Owen, M., Pretorius, J., Buitendag, B., Nel, C. (2023). Heat dissipation factors for building-attached PV modules, 17th International Heat Transfer Conference, Cape Town, South Africa, August 2023.

Pretorius, J. & Nielsen, S. 2023. Understanding heat dissipation factors for fixed-tilt and single-axis tracked open-rack photovoltaic modules: experimental insights.

Rawlins, B., Laubscher, R. and Rousseau, P. (2023). A fast thermal non-equilibrium eulerian-eulerian numerical simulation methodology of a pulverised fuel combustor. Thermal Science and Engineering Progress, vol. 41.

Redelinghuys, L. and McGregor, C. (2023). Carnot battery application in a parabolic trough concentrating solar power plant: System modelling, validation and analyses on the interplay between stored energies. The Journal of Energy Storage, vol. 60.

Redelinghuys, L., Tshamala, M. and Hans, T. (2023). Performance of an adiabatic pre-cooling system for concentrating solar power plants in arid areas. Applied Thermal Engineering, vol. 231.

Reed, M., Owen, M. (2023). Simulation of a novel solar thermal water distillation and energy co-generation system, 17th International Heat Transfer Conference, Cape Town, South Africa, August 2023.

Rousseau, P., Laubscher, R. and Rawlins, B. (2023). Heat transfer analysis using thermofluid network models for industrial biomass and utility scale coal-fired boilers. Energies, vol. 16.

Rozon, F., Koke, J., McGregor, C., Owen, M. (2023). Techno-economic analyses of solar thermal process heat integration at South African beverage producers, Solar Compass, vol. 8.

Rozon, F., McGregor, C. and Owen, M. (2023). Long-term forecasting framework for renewable energy technologiesâ installed capacity and costs for 2050. Energies, vol. 16.

Rozon, F., McGregor, C. & Owen, M. (2023). Towards a Transparent and Dynamic Forecasting of Renewable Energy Technologies Capacity and Cost to 2050.

Stephan, G.A., Van der Spuy, S.J. and Meyer, C. (2023), June. Development of a Custom Mesh Generation Tool for Low Solidity Axial Flow Fans. American Society of Mechanical Engineers Turbo Expo: Power for Land, Sea, and Air.

Stephan, G., van der Spuy, S. & Meyer, C. 2023. Development of a Custom Mesh Generation Tool for Low Solidity Axial Flow Fans.

Strydom, W., Pretorius, J. and Hoffmann, J., 2023. Sensitivity Analysis on the Performance of a Natural Draft Direct Dry Cooling System for a 50 MWe CSP Application. Proceedings of the 8th World Congress on Momentum, Heat and Mass Transfer, Lisbon, Portugal.

Swanepoel, P.C., Biedermann, T. and van der Spuy, S.J. (2023). Experimental noise reduction (aeroacoustical enhancement) of a large diameter axial flow cooling fan through a reduction in blade tip clearance. International Journal of Aeroacoustics, vol. 22.

Tiamiyu, N. & Hoffmann, J. (2023). Packed Bed Storage Systems and its Modelling Approaches: A Review of Navier- Stokes Equation and Turbulence Equations in Porous Media. In. ASME 2023 International Mechanical Engineering Congress and Exposition.

Tieghi, L., Delibra, G., van der Spuy, S.J. and Corsini, A. (2023). Leading edge bumps for flow control in air-cooled condensers. International Journal of Turbo-machinery, Propulsion and Power, vol. 8.

Toit, J. and Laubscher, R. (2023). Evaluation of physics-informed neural network solution accuracy and efficiency for modeling aortic transvalvular blood flow. Mathematical and Computational Applications, vol. 28.

Tshamala, M., Owen, M., McGregor, C., Dlamini, Z. (2023). Feasibility study on the use of a water-cooled shell and tube heat exchanger for a sCO₂ Brayton recompression cycle in CSP applications, Southern African Sustainable Energy Conference, Nelson Mandela Bay.

Tshamala, M., Moyo, T., Owen, M., McGregor, C. (2023). Feasibility study of a supercritical carbon dioxide Brayton recompression cycle cooled by a vapor compression refrigeration cycle, 17th International Heat Transfer Conference, Cape Town, South Africa, August 2023.

van Eck, H., van der Spuy, S.J. and Gannon, A. (2023). Expanding the choke margin of a mixed flow compressor stage for a micro gas turbine engine. International Journal of Turbo and Jet Engines.

van Eck, H., van der Spuy, S.J. and Gannon, A. (2023). The effect of impeller tip clearance on the performance of a mgt mixed flow compressor stage fitted with a crossover diffuser. Aerotecnica Missili Spazio.

van Zyl, J.G., Owen, M., Muller, G. (2023). Proof of concept for a decentralised low-pressure solar thermal system for combined electricity generation and water distillation, Southern African Sustainable Energy Conference, Nelson Mandela Bay.

Willemse, B., Nielsen, S., Pretorius, J., Owen, M. and Rix, A. (2023). A comparative evaluation of heat dissipation factors for open-rack and floating solar photovoltaic installations, Southern African Sustainable Energy Conference, Nelson Mandela Bay.