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Johannes P. Pretorius
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Proceedings Papers

Axial Flow Fan Performance in a Forced Draught Air-Cooled Heat Exchanger for a sCO 2 Brayton Cycle

Francois D. Boshoff, Sybrand J. van der Spuy, Johannes P. Pretorius
Proc. ASME. GT2024, Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, V006T10A001, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-120962
https://doi.org/10.1115/GT2024-120962
View Paper titled, Axial Flow Fan Performance in a Forced Draught Air-Cooled Heat Exchanger for a sCO 2 Brayton Cycle
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Topics: Axial flow, Brayton cycle, Heat exchangers, Computational fluid dynamics, Cooling, Flow (Dynamics), Air flow, Design, Boundary-value problems, Concentrating solar power
Journal Articles

Enhancing Axial Flow Fan Performance in Air-Cooled Condensers: Tip Vortex Manipulators and Comparative Analysis of Numerical Simulation and Experimental Testing

Johannes P. Pretorius, Sybrand J. van der Spuy, Jr.
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. September 2024, 146(9): 091203.
Paper No: FE-23-1543
https://doi.org/10.1115/1.4064854
Published Online: April 5, 2024
View Article titled, Enhancing Axial Flow Fan Performance in Air-Cooled Condensers: Tip Vortex Manipulators and Comparative Analysis of Numerical Simulation and Experimental Testing
Open the PDF for Enhancing Axial Flow Fan Performance in Air-Cooled Condensers: Tip Vortex Manipulators and Comparative Analysis of Numerical Simulation and Experimental Testing in another window
Topics: Blades, Computer simulation, Design, Flow (Dynamics), Pressure, Testing, Vortices, Wake turbulence, Leakage, Axial flow
Proceedings Papers

Tip Vortex Effects on Air-Cooled Condenser Axial Flow Fan Performance

Johannes P. Pretorius, Sybrand J. Van Der Spuy, Martin Strümpfer
Proc. ASME. GT2022, Volume 5: Education; Electric Power; Fans and Blowers, V005T10A011, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82283
https://doi.org/10.1115/GT2022-82283
View Paper titled, Tip Vortex Effects on Air-Cooled Condenser Axial Flow Fan Performance
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Topics: Axial flow, Condensers (steam plant), Wake turbulence
Proceedings Papers

Design of an Axial Flow Fan for a Unique Cooling Application

Francois D. Boshoff, Sybrand J. van der Spuy, Johannes P. Pretorius, Christiaan J. Meyer
Proc. ASME. GT2022, Volume 5: Education; Electric Power; Fans and Blowers, V005T10A005, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80256
https://doi.org/10.1115/GT2022-80256
View Paper titled, Design of an Axial Flow Fan for a Unique Cooling Application
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Topics: Axial flow, Cooling, Design, Test facilities, Air flow, Brayton cycle, Concentrating solar power, Energy generation, Geometry, Heat exchangers
Journal Articles

Effect of Tip Vortex Reduction on Air-Cooled Condenser Axial Flow Fan Performance: An Experimental Investigation

Johannes P. Pretorius, Johan A. Erasmus
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2022, 144(3): 031001.
Paper No: TURBO-21-1152
https://doi.org/10.1115/1.4052234
Published Online: September 29, 2021
View Article titled, Effect of Tip Vortex Reduction on Air-Cooled Condenser Axial Flow Fan Performance: An Experimental Investigation
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Topics: Axial flow, Blades, Clearances (Engineering), Flow (Dynamics), Pressure, Test facilities, Testing, Wake turbulence, Condensers (steam plant), Design
Journal Articles

Thermoeconomic Optimization of a Solar Chimney Power Plant

Johannes P. Pretorius, Detlev G. Kröger
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. May 2008, 130(2): 021015.
https://doi.org/10.1115/1.2840571
Published Online: April 1, 2008
View Article titled, Thermoeconomic Optimization of a Solar Chimney Power Plant
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Topics: Dimensions, Optimization, Power stations, Solar energy, Thermoeconomics, Inflow, Computer simulation
Journal Articles

Sensitivity Analysis of the Operating and Technical Specifications of a Solar Chimney Power Plant

Johannes P. Pretorius, Detlev G. Kröger
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. May 2007, 129(2): 171–178.
https://doi.org/10.1115/1.2711473
Published Online: July 26, 2006
View Article titled, Sensitivity Analysis of the Operating and Technical Specifications of a Solar Chimney Power Plant
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Topics: Emissivity, Power stations, Roofs, Simulation, Solar energy, Glass, Sensitivity analysis
Journal Articles

Solar Chimney Power Plant Performance

Johannes P. Pretorius, Detlev G. Kröger
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. August 2006, 128(3): 302–311.
https://doi.org/10.1115/1.2210491
Published Online: January 23, 2006
View Article titled, Solar Chimney Power Plant Performance
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Topics: Computer simulation, Convection, Momentum, Power stations, Roofs, Solar energy, Shear stress