Conference Proceedings

2018

SASEC 2018

• Basson, E.J.J.; Hoffmann, J.E.; Sebitosi, A.B. (2018). “Design and testing of externally finned tube cavity receiver for Brayton Cycle preheating purposes“. SASEC 2018, 5th Southern African Solar Energy Conference, 25 – 27 June 2018, Durban, South Africa.
• Clark, S.R.; van Niekerk, J.L.; Petrie, J. (2018). “Review of large independent electricity grid systems’ transition to renewable generation and its relevance for South Africa“. SASEC 2018, 5th Southern African Solar Energy Conference, 25 – 27 June 2018, Durban, South Africa.
• Craig, T.; Brent, A.; Dinter, F. (2018). ” Expert elicitation of the impact of R&D budget on CSP in South Africa“. SASEC 2018, 5th Southern African Solar Energy Conference, 25 – 27 June 2018, Durban, South Africa.
• Erasmus, S.J.; von Backström, T.W.; Lubkoll, M.; Dinter, F. (2018). “Design and development of a next generation thermal rock bed storage experimental facility“. SASEC 2018, 5th Southern African Solar Energy Conference, 25 – 27 June 2018, Durban, South Africa.
• Grobbelaar, D.; Lubkoll, M.; von Backström, T.W. (2018). “Improving the heat transfer characteristcs of the Spiky Central Receiver Air Pre-heater (SCRAP) using helically swirled fins“. SASEC 2018, 5th Southern African Solar Energy Conference, 25 – 27 June 2018, Durban, South Africa.
• Hockaday, S.A.C.; Dinter, F.; Harms, T.M. (2018). “Introducing solar thermal heat into minerals processing: A case study on replacing a diesel burner at a sinter plant“. SASEC 2018, 5th Southern African Solar Energy Conference, 25 – 27 June 2018, Durban, South Africa.
• Hoffmann; J.; Brand, B. (2018). “Manufacturing trials of a ribbed tube for the Spiked Concept Air Pre-heater“. SASEC 2018, 5th Southern African Solar Energy Conference, 25 – 27 June 2018, Durban, South Africa.
• Lubkoll, M.; Hockaday, S.A.C.; Harms, T.M.; von Backström, T.W.; Amsbeck, L.; Buck, R. (2018). “Integrating solar process heat into manganese ore pre-heating“. SASEC 2018, 5th Southern African Solar Energy Conference, 25 – 27 June 2018, Durban, South Africa.
• McDougall, D.; von Backström, T.W.; Lubkoll, M.; Sebitosi, B. (2018). “Jet impingement heat transfer effect on SCRAP“. SASEC 2018, 5th Southern African Solar Energy Conference, 25 – 27 June 2018, Durban, South Africa.
• Pan, C.; Dinter, F.; Harms, T.M. (2018). “Validation of a molten salt parabolic trough receiver model based on an emperical heat loss model“. SASEC 2018, 5th Southern African Solar Energy Conference, 25 – 27 June 2018, Durban, South Africa.
• Piessou, C.O.; Owen, M.T.F.; Lubkoll, M. (2018). “Pre-feasibility analysis of incorporating non-concentrating solar thermal energy systems in the Kenyan tea industry“. SASEC 2018, 5th Southern African Solar Energy Conference, 25 – 27 June 2018, Durban, South Africa.
• van der Westhuizen, R.; Dobson, R.T. (2018). “Transient simulation of a supercritical carbon dioxide (sCO2) concentrated solar power (CSP) system“. SASEC 2018, 5th Southern African Solar Energy Conference, 25 – 27 June 2018, Durban, South Africa.

2017

• Engelbrecht, R.A.; Van der Spuy; S.J.; Meyer, C.; Zapke, A. (2017). “Numerical investigation of the performance of a forced draft air-cooled heat exchanger“. ASME Turbo Expo 2017: Power for Land, Sea, and Air, Vol. 5(A): Heat Transfer, 26 – 30 June 2017, Charlotte, USA.
• Karsten, L.; Hoffmann, J.; Dinter, F. (2017). “An organic rankine cycle as technology for smaller concentrated solar powered systems“. ISES Solar World Congress, 29 October – 2 November 2017, Abu Dhabi, UAE.
• Niit, E.A.; Smit, W.J. (2017).” Integration of model reference adaptive control (MRAC) with PX4 firmware for quadcopters“. IEEE 24th International Conference on Mechatronics and Machine Vision in Practice (M2VIP), 21 – 23 November 2017, Auckland, New Zealand.
• Wilkinson, M.B.; Van der Spuy, S.J.; Von Backtröm, T.W. (2017). “The design of a large diameter axial flow fan for air-cooled heat exchanger applications“. ASME Turbo Expo 2017: Power for Land, Sea, and Air, Vol. 1: Aircraft Engine; Fans and Blowers; Marine; Honors and Awards, 26 – 30 June 2017, Charlotte, USA.

SolarPACES 2016

• Dall, E.P.; Hoffmann, J.E. (2017). “The techno-economic optimization of a 100 MWe CSP-desalination plant in Arandis (Namibia)“. AIP Conference Proceedings, Vol. 1850(1).
• de Meyer, O.A.J.; Dinter, F.; Govender, S. (2017). “Value as a parameter to consider in operational strategies for CSP plants“. AIP Conference Proceedings, Vol. 1850(1).
• Heller, L.; Hoffmann, J.E. (2017). “Enhancements to the hybrid pressurized air receiver (HPAR) concept in the SUNDISC cycle“. AIP Conference Proceedings, Vol. 1850(1).
• Landman, W.A.; Gauche, P.; Dinter, F.; Myburgh, J.T. (2017). “Techno-economic sensitivity study of heliostat field parameters for micro-gas turbine CSP“. AIP Conference Proceedings, Vol. 1850(1).
• Laubscher, H.F.; Von Backström, T.W.; Dinter, F. (2017). “Developing a cost effective rock bed thermal energy storage system: Design and modelling“. AIP Conference Proceedings, Vol. 1850(1).
• Lubkoll, M.; Harms, T.M.; Von Backström, T.W. (2017). “Introduction to heat transfer test setup for the SCRAP receiver“. AIP Conference Proceedings, Vol. 1850(1).
• Pidaparthi, A.S.; Hoffmann, J.E. (2017). “Effect of heliostat size on the levelized cost of electricity for power towers“. AIP Conference Proceedings, Vol. 1850(1).
• Pidaparthi, A.S.; Landman,W.A.; Hoffmann, JE.; Dinter, F. (2017). “Optical performance considerations for analysis and simulation of power tower plants“. AIP Conference Proceedings, Vol. 1850(1).
• Poole, I.V.; Dinter, F. (2017). “A molten salt tower model used for site selection in South Africa using SAURAN meteorological data“. AIP Conference Proceedings, Vol. 1850(1).

2016

• Hess, S.; Beukes, H.T. ; Smith, G.; Dinter, F. (2016). “Solar Process Heat for South African Sugar Mills“. EuroSun 2016, European Solar Conference, 11 – 14 October 2016, Palma de Mallorca.

SASEC 2016

• Craig, O.O.; Dobson, R.T.; van Niekerk, J.L. (2016). “A novel indirect parabolic solar cooker“. SASEC 2016, 4th Southern African Solar Energy Conference, 31 Oct – 2 Nov 2016, Stellenbosch, South Africa.
• Dall, E.P.; Hoffmann, J.E. (2016). “Integrating desalination with CSP: Large scale cogeneration of water and electricity“. SASEC 2016, 4th Southern African Solar Energy Conference, 31 Oct – 2 Nov 2016, Stellenbosch, South Africa. 
• Elsayed, F.; Laubscher, H.F.; Allen, K.; Dinter, F. (2016). “Combined mechanical and thermal loading of a hot air packed rock bed: A test rig for thermal energy storage“. SASEC 2016, 4th Southern African Solar Energy Conference, 31 Oct – 2 Nov 2016, Stellenbosch, South Africa. 
• Guerreiro, L.; Dinter, F.; Laubscher, H.F.; Allen, K.; Elsayed, F.; Collares Pereira, M. “High temperature energy storage in a rock-bed test facility“. SASEC 2016, 4th Southern African Solar Energy Conference, 31 Oct – 2 Nov 2016, Stellenbosch, South Africa.
• Hockaday, S.A.C.; Dinter, F.; Harms, T.M. (2016). “Opportunities for concentrated solar thermal heat in the minerals processing industry“. SASEC 2016, 4th Southern African Solar Energy Conference, 31 Oct – 2 Nov 2016, Stellenbosch, South Africa.
• Hoffmann, J.E. (2016). “Lumped method for calculating the optical efficiency of radially staggered heliostat fields“. SASEC 2016, 4th Southern African Solar Energy Conference, 31 Oct – 2 Nov 2016, Stellenbosch, South Africa.
• Hoffmann, J.E. (2016). “On the optimization of a central receiver system“. SASEC 2016, 4th Southern African Solar Energy Conference, 31 Oct – 2 Nov 2016, Stellenbosch, South Africa.
• Ilchmann, C.; Hess, S.; Klatt, M. (2016). “Open Source Modeling of Solar Process Heat Systems“. SASEC 2016, 4th Southern African Solar Energy Conference, 31 Oct – 2 Nov 2016, Stellenbosch, South Africa.
• Joubert, E.C.; Hess, S.; van Niekerk, J.L. (2016). “Large-Scale Solar Thermal in South Africa: Status, Barriers and Recommendations“. SASEC 2016, 4th Southern African Solar Energy Conference, 31 Oct – 2 Nov 2016, Stellenbosch, South Africa.
• Laubscher, H.F.; von Backström, T.W.; Dinter, F. (2016). “Development and design of an experimental facility for cost effective thermal rock bed storage systems“. SASEC 2016, 4th Southern African Solar Energy Conference, 31 Oct – 2 Nov 2016, Stellenbosch, South Africa.
• Lubkoll, M.; Harms, T.M.; von Backström, T.W. (2016). “Introduction to heat transfer test setup and manufacturing process for the SCRAP receiver“. SASEC 2016, 4th Southern African Solar Energy Conference, 31 Oct – 2 Nov 2016, Stellenbosch, South Africa.
• Pidaparthi, A.S.; Duvenhage, D.F.; Hoffmann, J.E. (2016). “A parametric study of heliostat size for reductions in levelized cost of electricity“. SASEC 2016, 4th Southern African Solar Energy Conference, 31 Oct – 2 Nov 2016, Stellenbosch, South Africa.
• Poole, I.V.; Dinter, F. (2016). “Increasing the temporal resolution of direct normal irradiance data using the South African Universities Radiometric Network“. SASEC 2016, 4th Southern African Solar Energy Conference, 31 Oct – 2 Nov 2016, Stellenbosch, South Africa.
• Prentice, G.; Brent, A.C.; de Kock, I.H. (2016). “Evaluation of existing strategies for the commercialisation of mult-technology renewable energy systems: The case of concentrating solar power technologies in South Africa“. SASEC 2016, 4th Southern African Solar Energy Conference, 31 Oct – 2 Nov 2016, Stellenbosch, South Africa.
• Rudman, J.; Gauché, P.; Esler, K.J. (2016). “Environmental impacts of utility-scale solar power in South Africa: A first survey of experts and stakeholders“. SASEC 2016, 4th Southern African Solar Energy Conference, 31 Oct – 2 Nov 2016, Stellenbosch, South Africa.
• Ssebabi, B.; Dinter, F.; van der Spuy, S.J. (2016). “Modeling a solar-hybrid micro gas turbine“. SASEC 2016, 4th Southern African Solar Energy Conference, 31 Oct – 2 Nov 2016, Stellenbosch, South Africa.
• Swart, B.D.; Engelbrecht, H.A.; Treurnicht, J. (2016). “A method for accurate measurement of heliostat mirror orientation“. SASEC 2016, 4th Southern African Solar Energy Conference, 31 Oct – 2 Nov 2016, Stellenbosch, South Africa.
  

  SolarPACES 2015

• Allen, K.; von Backström, T.W.; Joubert, E.; Gauché, P. (2016). “Rock bed thermal storage: Concepts and costs“. AIP Conference Proceedings, Vol. 1734(1).
• Craig, O.O.; Dobson, R.T. (2016). “Parabolic solar cooker: Cooking with heat pipe vs direct spiral copper tubes“. AIP Conference Proceedings, Vol. 1734(1).
• de Meyer, O.A.J.; Dinter, F.; Govender, S. (2016). “Thermal resistance model for CSP central receivers“. AIP Conference Proceedings, Vol. 1734(1).
• Dinter, F.; Möller, L. (2016). “A review of Andasol 3 and perspective for parabolic trough CSP plants in South Africa“. AIP Conference Proceedings, Vol. 1734(1).
• Gauché, P.; von Backström, T.W.; Brent, A.C.; Rudman, J. (2016). “CSP opportunity and challenges in a national system:  The WWF renewable vision for a 2030 South African electricity mix“. AIP Conference Proceedings, Vol. 1734(1).
• Grobler, A.; Gauché, P.; Smit, W.J. (2016). “Gaussian mixture models as flux prediction method for central receivers“. AIP Conference Proceedings, Vol. 1734(1).
• Harper, P.J.; Dreijer, J.; Malan, K.; Larmuth, J.; Gauché, P. (2016). “Use of MEMs and optical sensors for closed loop heliostat control“. AIP Conference Proceedings, Vol. 1734(1).
• Heller, L.; Hoffmann, J.E.; Gauché, P. (2016). “The hybrid pressurized air receiver (HPAR) in the SUNDISC Cycle“. AIP Conference Proceedings, Vol. 1734(1).
• Homann, C.; van der Spuy, J.; von Backström, T.W. (2016). “The effects of solarization on the performance of a gas turbine“. AIP Conference Proceedings, Vol. 1734(1).
• Kotzé, J.P.; du Toit, P; Bode, S.J.; Larmuth, J.N.; Landman, W.A.;Gauché, P. (2016). “Solar augmentation for process heat with central receiver technology“. AIP Conference Proceedings, Vol. 1734(1).
• Larmuth, J.N.; Landman, W.A.; Gauché, P. (2016). “A top-down approach to heliostat cost reduction“. AIP Conference Proceedings, Vol. 1734(1).
• Lock, J.C.; Smit, W.J.; Treurnicht, J. (2016). “An investigation into multi-dimensional prediction models to estimate the pose error of a quadcopter in a CSP plant setting“. AIP Conference Proceedings, Vol. 1734(1).
• Lubkoll, M.; von Backström, T.W.; Harms, T.M. (2016). “Performance outlook of the SCRAP receiver“. AIP Conference Proceedings, Vol. 1734(1).
• Pidaparthi, A.S.; Dall, E.P.; Hoffmann, J.E.; Dinter, F. (2016). “CSP parabolic trough and power tower performance analysis through the Southern African universities radiometric network (SAURAN) data“. AIP Conference Proceedings, Vol. 1734(1).
• Platzer, W.J.; Dinter, F. (2016). “A learning curve for solar thermal power“. AIP Conference Proceedings, Vol. 1734(1).
• Prinsloo, G.; Dobson, R.; Brent.A.; Mammoli, A. (2016). “Modelling and control synthesis of a micro-combined heat and power interface for a concentrating solar power system in off-grid rural power applications“. AIP Conference Proceedings, Vol. 1734(1).
• Ramorakane, R.J.; Dinter, F. (2016). “Evaluation of parasitic consumption for a CSP plant“. AIP Conference Proceedings, Vol. 1734(1).
• Rudman, J.; Gauché, P.; Esler, K.J. (2016). “Initial review and analysis of the direct environmental impacts of CSP in the northern Cape, South Africa“. AIP Conference Proceedings, Vol. 1734(1).
• Silinga, C.; Gauché, P.; van Niekerk, W. (2016). “CSP Scenarios in South Africa: Benefits of CSP and the lessons learned“. AIP Conference Proceedings, Vol. 1734(1).

2015

• Hess, S. (2015). “Technologies and Perspectives for Solar Water Heating and Solar Process Heat in Southern Africa”. IRES 2015, 1^st International Renewable Energy Symposium, 29 – 30 October 2015, Windhoek, Namibia.

SASEC 2015

• Brent, A.C. (2015). “Solar Energy RDI Roadmap for South Africa“. SASEC 2015, 3rd Southern African Solar Energy Conference, 11 – 13 May 2015, Kruger National Park, South Africa.
• Craig, O.O.; Dobson, R.T. (2015). “Stand-alone parabolic solar cookers and rural industrialisation in South Africa“. SASEC 2015, 3rd Southern African Solar Energy Conference, 11 – 13 May 2015, Kruger National Park, South Africa.
• Dinter, F.; Busse, K.T. (2015). “Overview of predictive CSP spread scenarios and its opportunities“. SASEC 2015, 3rd Southern African Solar Energy Conference, 11 – 13 May 2015, Kruger National Park, South Africa.
• Hameer, S.; van Niekerk, J.L. (2015). “A Thermodynamic model for comparing thermal energy storage system to electrochemical, chemical, and mechanical energy storage technologies“. SASEC 2015, 3rd Southern African Solar Energy Conference, 11 – 13 May 2015, Kruger National Park, South Africa.
• Heller, L.; Mesnil, B.; Hoffmann, J. (2015). “Initial investigation of liquid glass as a thermal medium in CSP plants“. SASEC 2015, 3rd Southern African Solar Energy Conference, 11 – 13 May 2015, Kruger National Park, South Africa.
• Hess, S. (2015). “Stationary booster reflectors for solar thermal process heat generation“. SASEC 2015, 3rd Southern African Solar Energy Conference, 11 – 13 May 2015, Kruger National Park, South Africa.
• Jadhav, A.S.; van Niekerk, J.L. “Prospects of inclined solar chimney concept in South Africa“.  SASEC 2015, 3rd Southern African Solar Energy Conference, 11 – 13 May 2015, Kruger National Park, South Africa.
• Joubert, E.C.; van Niekerk, J.L. (2015). “Industrial solar process heat yield and feasibility“. SASEC 2015, 3rd Southern African Solar Energy Conference, 11 – 13 May 2015, Kruger National Park, South Africa.
• Meyer, A.J; van Niekerk, J.L. (2015). “Towards a verified DNI map for South Africa“. SASEC 2015, 3rd Southern African Solar Energy Conference, 11 – 13 May 2015, Kruger National Park, South Africa.
• Pitot de la Beaujardiere, J.P.; Allen, K.G.; Reuter, H.C.; von Backström, T.W. (2015). “The suitability of the infinite NTU model for long-term rock bed thermal storage performance simulation“. SASEC 2015, 3rd Southern African Solar Energy Conference, 11 – 13 May 2015, Kruger National Park, South Africa.
• Silinga, C. (2015). “Soltrain II – Solar water heating system test and demonstration facility“.  SASEC 2015, 3rd Southern African Solar Energy Conference, 11 – 13 May 2015, Kruger National Park, South Africa.
• Suri, M.; Cebecauer, T.; Meyer, A.J.; van Niekerk, J.L. (2015). “Accuracy-enhanced solar resource maps of South Africa“. SASEC 2015, 3rd Southern African Solar Energy Conference, 11 – 13 May 2015, Kruger National Park, South Africa.
• Van der Walt, R.J.; Van Niekerk, J.L.; Crewe-Brown, J.J.; Fairhurst, J. (2015). “Design consideration for a solarturtle“.  SASEC 2015, 3rd Southern African Solar Energy Conference, 11 – 13 May 2015, Kruger National Park, South Africa.

SolarPACES 2014

• Heller, L.; Hoffmann, J. (2015). “A cost and performance evaluation of SUNDISC: a dual-pressure air receiver cycle“. Energy Procedia, Vol. 69, pp. 1287 – 1295.
• Lubkoll, M.; von Backström, T,W.; Harms, T.M.; Kroger, D.G. (2015). “Initial analysis on the Novel Spiky Central Receiver Air Pre-heater (SCRAP) Pressurized Air Receiver“. Energy Procedia, Vol. 69, pp. 461 – 470.
• Malan, D.J.; Dobson, R.T.; Dinter, F. (2015). “Solar thermal energy storage in power generation using phase change material with heat pipes and fins to enhance heat transfer“. Energy Procedia, Vol. 69, pp. 925 – 936.
• Silinga, C.; Gauche, P.; Rudman, J.; Cebecauer, T. (2015). “The South African REIPPP two-tier CSP tariff: Implications for a proposed hybrid CSP peaking system“. Energy Procedia, Vol. 69, pp. 1431-1440.

2014

• Louw, F.G.; von Backström, T.W.; van der Spuy, S.J. (2014). “Modelling of the flow field in the vicinity of an axial flow fan focusing on low flow rates”. SACAM 2014, 9th South African Conference on Computational and Applied Mechanics, 14 – 16 January 2014, Somerset West, South Africa.
• Louw, F.G.; von Backström, T.W.; van der Spuy, S.J. (2014). “Investigation of the flow field in the vicinity of an axial flow fan during low flow rates“. ASME Turbo Expo 2014: Turbine Technical Conference and Exposition, Vol. 1(A): Aircraft Engine; Fans and Blowers, 16 – 20 June 2014, Düsseldorf, Germany.

SASEC 2014

• Auret, C.; Gauché, P. (2014). “Replacing intermittent Renewable capacity in the 2010 IRP with CSP: Effect on Coal fired power station capacity factors in 2030“. SASEC 2014, 2nd Southern African Solar Energy Conference, 27 – 29 January 2014, Port Elizabeth, South Africa.
• Dinter, F. (2014). “Operation experience of a 50MW Solar Thermal Parabolic Trough Plant in Spain“. SASEC 2014, 2nd Southern African Solar Energy Conference, 27 – 29 January 2014, Port Elizabeth, South Africa.
• Giglmayr, S.; Brent, A.; Gauché, P.; Fechner, H. (2014). “Utility-Scale PV Power and Energy Supply outlook for South Africa in 2015“. SASEC 2014, 2nd Southern African Solar Energy Conference, 27 – 29 January 2014, Port Elizabeth, South Africa.
• Grobler, A.; Gauché, P. (2014). “A review of aiming strategies for Central Receivers“. SASEC 2014, 2nd Southern African Solar Energy Conference, 27 – 29 January 2014, Port Elizabeth, South Africa.
• Heller, L.; Hoffmann, J. (2014). “Comparison of different configurations of a combined cycle CSP plant“. SASEC 2014, 2nd Southern African Solar Energy Conference, 27 – 29 January 2014, Port Elizabeth, South Africa.
• Hoffmann, J.E. (2014). “Optimization of Internally finned tubes for Solar Receivers“. SASEC 2014, 2nd Southern African Solar Energy Conference, 27 – 29 January 2014, Port Elizabeth, South Africa.
• Landman, W.A.; Gauché, P. (2014). “Analysis of canting strategies using the HFLCAL model“. SASEC 2014, 2nd Southern African Solar Energy Conference, 27 – 29 January 2014, Port Elizabeth, South Africa.
• Larmuth, J.; Malan, K.; Gauché, P. (2014). “Design and Cost Review of 2m² Heliostat prototypes“. SASEC 2014, 2nd Southern African Solar Energy Conference, 27 – 29 January 2014, Port Elizabeth, South Africa.
• Lubkoll, M.; von Backström, T.W.;Kröger, D.G. (2014). “Survey on Pressurised Air Receiver Development“. SASEC 2014, 2nd Southern African Solar Energy Conference, 27 – 29 January 2014, Port Elizabeth, South Africa.
• Lutchman, S.L.; Gauché, P.; Groenwold, A.A. (2014). “On selecting a method for heliostat field layout optimization“. SASEC 2014, 2nd Southern African Solar Energy Conference, 27 – 29 January 2014, Port Elizabeth, South Africa.
• Madaly, K.; Hoffmann, J. (2014). “Identifying the Optimum storage capacity for a 100MW CSP Plant for South Africa“. SASEC 2014, 2nd Southern African Solar Energy Conference, 27 – 29 January 2014, Port Elizabeth, South Africa.
• Malan, K.J.; Gauché, P. (2014). “A locally developed 40m² Heliostat Array wireless control system“. SASEC 2014, 2nd Southern African Solar Energy Conference, 27 – 29 January 2014, Port Elizabeth, South Africa.
• van der Merwe, P.C.; Hoffmann, J.E. (2014). “Annular Solar Receiving Tube“. SASEC 2014, 2nd Southern African Solar Energy Conference, 27 – 29 January 2014, Port Elizabeth, South Africa.
• Wilms, J.M.; Harms, T.M. (2014). “On the Development of an OpenFOAM Solver to model two-phase horizontal flow in a heated pipe“. SASEC 2014, 2nd Southern African Solar Energy Conference, 27 – 29 January 2014, Port Elizabeth, South Africa.

SolarPACES 2013

• Allen, K.G.; von Backström, T.W.; Kröger, D.G. (2014). “Packed rock bed thermal storage in power plants: Design considerations“. Energy Procedia, Vol. 49, pp. 666-675.
• Bode, S.J.; Gauché, P.; Griffith, D. (2014). “A novel approach to reduce ray tracing simulation times by reducing statistical noise“. Energy Procedia, Vol. 49, pp. 2454-2461.
• Dinter, F. ; Mayorga Gonzalez, D. (2014). “Operability, reliability and economic benefits of CSP with thermal energy storage: First year of operation of ANDASOL 3“. Energy Procedia, Vol. 49, pp. 2472-2481.
• Heller, L.; Gauché, P. (2014). “Dual-pressure air receiver cycle for direct storage charging“. Energy Procedia, Vol. 49, pp. 1400-1409.
• Kotze, J.P.; von Backström, T.W.; Erens, P.J. (2014). “Simulation and testing of a latent heat thermal energy storage unit with metallic phase change material“. Energy Procedia, Vol. 49, pp. 860-869.
• Landman, W.; Gauché, P. (2014). “Influence of Canting Mechanism and Facet Profile on Heliostat Field Performance“. Energy Procedia, Vol. 49, pp. 126-135.
• Lutchman, S.L.; Groenwold, A.A.; Gauché, P.; Bode, S. (2014). “On using a gradient-based method for heliostat field optimization“. Energy Procedia, Vol. 49, pp. 1429-1438.
• Malan, K.; Gauché, P. (2014). “Model based open-loop correction of heliostat tracking errors“. Energy Procedia, Vol. 49, pp. 2118-2124.
• Prinsloo, G.; Dobson, R.; Schreve, K. (2014). “Carbon footprint optimization as PLC control strategy in solar power system automation“. Energy Procedia, Vol. 49, pp. 2180-2190.
• Prinsloo, G.; Dobson, R.; Schreve, K. (2014). “Mechatronic platform with 12m² solar thermal concentrator for rural power generation in Africa“. Energy Procedia, Vol. 49, pp. 1470-1480.
• Silinga, C.; Gauché, P. (2014). “Scenarios for a South African CSP peaking system in the short term“. Energy Procedia, Vol. 49, pp. 1543-1552.

2013

• Owen, M.T.F.; Kröger, D. G. (2013). “A hybrid dephlegmator for incorporation into an air-cooled steam condenser“. ICAE 2013, 5th International Conference on Applied Energy, 2 – 4 July 2013, Pretoria, South Africa.

2012

• Louw, F.G.; Bruneau, P.R.P.; von Backström, T.W.; van der Spuy, S.J. (2012). “The design of an axial flow fan for application in large air-cooled heat exchangers“. ASME Turbo Expo 2012: Turbine Technical Conference and Exposition, Vol. 3: Cycle Innovations; Education; Electric Power; Fans and Blowers; Industrial and Cogeneration, 11 – 15 June 2012, Copenhagen, Denmark.

SolarPACES 2012

• Kotze, J.P.; Erens, P.J.; von Backström, T.W. (2012). “Evaluation of a latent heat thermal energy storage system using AlSi12 as a phase change material“. SolarPACES 2012, 18th SolarPACES Conference, 11 – 14 September 2012, Marrakech, Morocco.
• Kotze, J.P.; Erens, P.J.; von Backström, T.W. (2012). “NaK as a primary heat transfer fluid in thermal solar power installations“. SolarPACES 2012, 18th SolarPACES Conference, 11 – 14 Septemberr 2012, Marrakech, Morocco.
• Kretzschmar, H.; Mouzouris, M; Gauché, P. (2012). “Development of a flat-plate calorimeter for a small scale heliostat field“. SolarPACES 2012, 18th SolarPACES Conference, 11 – 14 September 2012, Marrakech, Morocco.
• Landman, W.; Gauche, P. (2012). “Sensitivity analysis of a curved heliostat facet profile“. SolarPACES 2012, 18th SolarPACES Conference, 11 – 14 September 2012, Marrakech, Morocco.
• Meyer, A.J. (2012). “The South African REFIT: Solar resource assessment options for CSP developers“. SolarPACES 2012, 18th SolarPACES Conference, 11 – 14 September 2012, Marrakech, Morocco.
• Mouzouris, M.; Kretzschmar, H.; Brooks, M.J. (2012). “Design challenges in point-focus solar collectors: Optical error analysis and thermal performance validation“. SolarPACES 2012, 18th SolarPACES Conference, 11 – 14 September 2012, Marrakech, Morocco.

SASEC 2012

• Bode, S.J.; Gauché, P. (2012). “Review of optical software for use in concentrated solar power systems“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.
• Buck, R.; Pfahl, A.; Roos, T.H. (2012). “Target aligned heliostat field layout for non-flat terrain“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.
• Gauché, P.; Pfenninger, S.; Meyer, A.J.; von Backström, T.W.; Brent, A.C. (2012). “Modeling dispatchability potential of CSP in South Africa“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.
• Gauché, P.; von Backström, T.W.; Brent, A.C. (2012). “A value proposition of CSP for South Africa“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.
• Harper, P.J.; von Backström, T.W.; Fluri, T.P.; Kröger, D.G. (2012). “TRNSYS modeling of a 100MWE hybrid combined cycle concentrating solar power plant“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.
• Heller, L.; Gauché, P. (2012). “Rock bed storage based simulation of a 5MWe combined cycle solar power plant“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.
• Kotze, J.P.; von Backstrom, T.W.; Erens, P.J. (2012). “NaK as a primary heat transfer fluid in thermal solar power installations“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.
• Kretzschmar, H.; Gauché, P. (2012). “Hybrid pressurized air receiver for the SUNSPOT cycle“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.
• Landman, L.; Gauché, P. (2012). “Method for determining a continuous aberration free heliostat surface“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.
• Louw, A.D.R.; Nel, R.G.; Gauché, P. (2012). “A DEM-CFD approach to predict the pressure drop through an air-rock bed thermal energy storage system: Part 2 of 2“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.
• Lubkoll, M.; Gauché, P.; Brent, A.C. (2012). “Localisation potential of linear fresnel CSP in South Africa“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.
• Maliage, M.; Roos, T.H. (2012). “The flux distribution from a 1.25M2 target aligned heliostat: Comparison of ray tracing and experimental results“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.
• Meyer, A.J. (2012). “The South African refit: Solar resource assessment options for solar developers“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.
• Nel, R.G.; Louw, A.D.R.; Coetzee, C.J. (2012). “A DEM-CFD approach to predict the pressure drop through an air-rock bed thermal storage system: Part 1“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.
• Owen, M.; Kröger, D.G. (2012). “Fan inlet temperature considerations at an ACC“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.
• Roos, T.H. (2012). “A wind loading correlation for an isolated square heliostat. Part 1: Lift and drag forces“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.
• Roos, T.H. (2012). “A wind loading correlation for an isolated square heliostat. Part 2: Moments and side forces“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.
• Rubin, N.; Roos, T.H.; Wilson, F.; De Villiers, J.; Perumal, S. (2012). “Control design profits heliostat techno-economics“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.
• Walker, G.; von Backström, T.W.; Gauché, P. (2012). “A method of increasing collector aperture in linear fresnel solar concentrators at high zenith angles“. SASEC 2012, 1st Southern African Solar Energy Conference, 21 – 23 May 2012, Stellenbosch, South Africa.

2011

• Lubkoll, M.; Brent, A.C.; Gauché, P. (2011). “A pre-feasibility study of a concentrating solar power system to offset electricity consumption at the Spier Estate“. ISES Solar World Congress, 28 August – 2 September 2011, Kassel, Germany.

SolarPACES 2011

• De Wet, A.L.; Gauché, P. (2011). “A domestic solar water heater testing facility for Southern Africa“. SolarPACES 2011, 17th SolarPACES Conference, 20 – 23 September 2011, Granada, Spain.
• Gauché, P.; von Backström, T.W.; Brent, A.C. (2011). “CSP modeling methodology for macro decision making – Emphasis on the central receiver type“. SolarPACES 2011, 17th SolarPACES Conference, 20 – 23 September 2011, Granada, Spain.
• Kotze, J.P.; von Backström, T.W.; Erens, P.J. (2011). “A combined latent thermal energy storage and steam generator concept using metallic phase change materials and metallic heat transfer fluids for concentrated solar power“. SolarPACES 2011, 17th SolarPACES Conference, 20 – 23 September 2011, Granada, Spain.
• Meyer, A.J.; van Niekerk, J.L. (2011). “Roadmap for the deployment of concentrating solar power in South Africa“. SolarPACES 2011, 17th SolarPACES Conference, 20 – 23 September 2011, Granada, Spain.

2010

• Kuhn, M.; von Backström, T.W.; Fluri, T.P. (2010). “The Influence of Tip Clearance Effects on the Performance of Solar Chimney Turbines”. 2nd International Conference on Solar Chimney Power Technology, Bochum, Germany.
• Pretorius, J.P.; Kröger, D.G. (2010). “Basic Theory And Numerical Simulation Of Large-Scale Solar Updraft Power Plants”. 2nd International Conference on Solar Chimney Power Technology, Bochum, Germany.
• von Backström, T.W.; Fluri, T. P. (2010). “Solar Chimney Turbine Layout and Design Considerations”. 2nd International Conference on Solar Chimney Power Technology, Bochum, Germany.
• Maulbetsch, J.S.; DiFilippo, M.N.; Owen, M.; Kröger, D.G. (2010). “Wind Effects On Air-Cooled Condensers For Power Plant Cooling“. 14th International Heat Transfer Conference, 8 – 13 August 2010, Washington DC, USA.

2000-2009

• Pretorius, J. P. and Kröger, D. G. (2009). “Regulating Solar Chimney Power Plant Output According To Demand”. Proceedings of ISES Solar World Congress 2009. Johannesburg, South Africa.
• Allen, K. G.; Kröger, D. G. and Fluri, T. P. (2009). “Thermal Energy Storage In A Rock Bed”. Proceedings of ISES Solar World Congress 2009. Johannesburg, South Africa.
• Owen, M. T. F. and Kröger, D. G. (2009). “A Numerical Investigation Of Air-Cooled Steam Condenser Performance Under Windy Conditions”. Proceedings of 14TH IAHR Cooling Tower and Heat Exchanger Conference. Stellenbosch, South Africa.
• van der Spuy, S. J.; von Backström, T. W. and Kröger, D. G. (2008). “Simulation of a multiple fan installation using computational fluid dynamics”. Proceedings of SACAM 2008. Cape Town, South Africa.
• Fluri, T. P. and von Backström, T. W. (2008). “Cost Optimization of Solar Chimney Power Conversion Units”. Proceedings of EuroSun 2008. Lisbon, Portugal.
• Pretorius, J. P. and Kröger, D. G. (2006). “Thermo-Economic Optimization Of A Solar Chimney Power Plant”. Proceedings of CHISA 2006. Prague, Czech Republic.
• Burger, M. and Kröger, D. G. (2006). “Experimental Convection Heat Transfer Coefficient Between A Horizontal Surface And The Natural Environment”. Proceedings of CHISA 2006. Prague, Czech Republic.
• Fluri, T. P.; Pretorius, J. P.; van Dyk, C. P.; von Backström, T. W.; Kröger, D. G. and van Zijl, G. P. A. G. (2006). “Cost Analysis Of Solar Chimney Power Plant”. Proceedings of EuroSun 2006. Glasgow, Scotland.
• Fluri, T. P. and von Backström, T. W. (2006). “Performance of the power conversion unit of a solar chimney power plant”. Proceedings of WREC IX. Florence, Italy.
• Fluri, T. P. and von Backström, T. W. (2006). “Turbogenerator concepts for solar chimney power plants”. Proceedings of WREC IX. Florence, Italy.
• von Backström, T. W. and Fluri, T. P. (2006). “Maximum fluid power condition for solar chimney power plants – An Analytical Approach”. Solar Energy 80.11,pp. 1417-1423.
• Kirstein, C. F.; von Backström, T. W. and Kröger, D. G. (2005). “Flow through a Solar Tower Power Plant collector-to-chimney transition section”. Proceedings of ISES Solar World Congress 2005. Orlando, USA.
• Kirstein, C. F.; von Backström, T. W. and Kröger, D. G. (2005). “Flow phenomena in the transition section of a solar chimney model”. Proceedings of HEFAT 2005. Cairo, Egypt.
• Zapke, A.; Goldschagg, H. and Kröger, D. G. (2005). “Flow Limitations In a Dephlegmator And Modifications For Performance Improvement Of The Matimba Power Station Air-Cooled Steam Condensing System”. Proceedings of 13th IAHR Symposium in Cooling Towers. Poitiers, France.
• Kirstein, C. F.; von Backström, T. W. and Kröger, D. G. (2005). “Flow Phenomena In The Transition Section Collector-To-Chimney Transition Section”. Proceedings of ISEC 2005. Orlando, USA.
• Pretorius, J. P. and Kröger, D. G. (2005). “Thermal-Flow Analysis Of A Solar Chimney Power Plant”. Proceedings of HEFAT 2005. Cairo, Egypt.
• von Backström, T. W.; (2004). “Solar Power Generation”. Proceedings of Annual Symposium 2004 National Association for Clean Air. Western Cape, South Africa.
• Pretorius, J. P.; Kröger, D. G.; Buys, J. D. and von Backström, T. W. (2004). “Solar Tower Power Plant Performance Characteristics”. Proceedings of EuroSun 2004. Freiburg, Germany.
• von Backström, T. W. and Fluri, T. P. (2004). “Maximum Fluid Power Condition for Solar Chimney Power Plants-An Analytical Approach”. Proceedings of EuroSun 2004. Freiburg, Germany.
• Burger, M. and Kröger, D. G. (2004). “Experimental Convection Heat Transfer Co-efficient on a Horizontal Surface Exposed To The Natural Environment”. Proceedings of EuroSun 2004. Freiburg, Germany.
• Pretorius, J. P.; Kröger, D. G.; Buys, J. D. and von Backström, T. W. (2004). “Solar Power Plant Performance Characteristics”. Proceedings of EuroSun 2004. Freiburg, Germany.
• Lombaard, I. F. and Kröger, D. G. (2004). “Storage Of Solar Energy in a Plastic Covered Water Tank”. Proceedings of HEFAT 2004. Cape Town, South Africa.
• von Backström, T. W.; Kirstein, C. F. and Pillay, L. A. (2003). “The influence of some secondary effects on solar chimney power plant performance”. Proceedings of ISES Solar World Congress 2003. Gothenborg, Sweden.
• Gannon, A. J. and von Backström, T. W. (2003). “Solar chimney turbine performance”. Journal of Solar Energy Engineering 125.1, pp. 101-106.
• Westdyk, D. and Kröger, D. G. (2003). “Evapotranspiration Of Grass Growing Under Glass And Subject To Radiation And Convective Heat Transfer”. Proceedings of HEFAT 2003. Victoria Falls, Zambia.
• Kröger, D. G. (2003). “Heat Transfer Between A Horizontal Surface And The Natural Environment”. Proceedings of ISES Solar World Congress 2003. Gothenborg, Sweden.
• Kröger, D. G. (2002). “Analysis Of Convection Heat Transfer From An Infinite Upward-Facing Heated Horizontal Surface Exposed To The Natural Environment”. Proceedings of IHTC-12. Grenoble, France.
• von Backström, T. W. and Gannon, A. J. (2001). “Preliminary investigation of pressure drop in solar power plant chimneys”. Proceedings of Western Cape Forum for Mechanical Engineering Research Conference on Heat Transfer Energy Conversion and Fluid Dynamics. .
• Gannon, A. J. and von Backström, T. W. (2001). “Solar chimney test rig”. Proceedings of Western Cape Forum for Mechanical Engineering Research Conference on Heat Transfer Energy Conversion and Fluid Dynamics. .
• von Backström, T. W. and Gannon, A. J. (2001). “Solar chimney turbine characteristics”. Proceedings of ISES Solar World Congress 2001. Adelaide, Australia.
• Kröger, D. G. and Buys, J. (2001). “Performance Evaluation Of A Solar Chimney Power Plant”. Proceedings of ISES Solar World Congress 2001. Adelaide, Australia.
• Lombaard, I. F. and Kröger, D. G. (2001). “Heat Transfer Between A Horizontal Surface And The Natural Environment”. Proceedings of ISES Solar World Congress 2001. Adelaide, Australia.
• Kröger, D. G. (2001). “Performance Evaluation Of Air-Cooled Steam Condensers”. Proceedings of 12th IAHR Cooling Tower and Heat Exchanger Conference. Sydney, Australia.
• Kröger, D. G. (2001). “Thermal-Flow Performance Evaluation And Design Of Air-Cooled Steam Condensers”. Proceedings of 12th IAHR Cooling Tower and Heat Exchanger Conference. Sydney, Australia.
• Gannon, A. J. and von Backström, T. W. (2000). “Solar chimney cycle analysis including losses and solar collector”. Proceedings of SACAM 2000. Durban, South Africa.
• von Backström, T. W. and Gannon, A. J. (2000). “Compressible flow through tall chimneys”. Proceedings of Solar 2000. Madison, USA.

prior to 2000

• Kröger, D. G. (1998). “Development Of Industrial Cooling Systems And Their Impact On The Environment”. Proceedings of USA-RSA Bi-National Energy and Environmental Workshop. Durban, South Africa.
• Hoffman, J. E. and Kröger, D.G. (1997). “The Response Of A Large Natural Draft Dry-Cooling Tower To Ambient Temperature Stratification”. Proceedings of Cooling Tower Technology Conference. St. Petersburg, USA.
• Goldschagg, H. B.; Vogt, F.; du Toit, C. G.; Thiart, G. D. and Kröger, D. G. (1997). “Air-Cooled Steam Condenser Performance In The Presence Of Crosswinds”. Proceedings of Cooling Tower Technology Conference. St. Petersburg, USA.
• Duvenhage, K.; du Toit, C. G. and Kröger, D. G.; (1996). “Methods To Combat The Influence Of Cross Wind On Fan Performance In Forced Draught Air-Cooled Heat Exchangers”. Proceedings of SACAM 96. Midrand, South Africa.
• Kröger, D. G. (1996). “Air-Cooled Steam Condenser Draught Equation”. Proceedings of 6th Australasian Heat and Mass Transfer Conference. Sydney, Australia.
• Kröger, D. G. (1995). “Air-Cooled Steam Condenser Fan Performance”. Proceedings of 2nd International Symposium on Dry-cooling Technology. Wutai Mountains, China.
• Kröger, D. G. (1995). “Fan Performance In Air-Cooled Steam Condensers”. Proceedings of International Joint Power Generation Conference. Minneapolis, USA.
• Du Preez, A. F. and Kröger, D. G. (1994). “The Influence Of A Buoyant Plume On The Performance Of A Natural Draft Cooling Tower”. Proceedings of 9th IAHR Cooling Tower and Spraying Pods Symposium. Brussels, Belgium.
• Kröger, D. G. (1993). “Experimental Heat Transfer Fluid Mechanics And Thermodynamics In The Development Of Large Air-Cooled Heat Exchangers: Invited Lecture”. Proceedings of 3rd World Conf. on Exp. Heat Transfer Fluid Mechanics and Thermodynamics. Honolulu, USA.
• Du Toit, C. G.; Thiart, G. D. and Kröger, D. G. (1993). “Analysis Of Recirculation In Mechanical-Draught Heat Exchangers”. Proceedings of 3rd World Conf. on Exp. Heat Transfer Fluid Mechanics and Thermodynamics. Honolulu, USA.
• Du Preez, A. F. and Kröger, D. G. (1992). “Investigation Into The Influence Of Cross-Winds On The Performance Of Dry-Cooling Towers”. Proceedings of 8th IAHR Cooling Tower and Spraying Pods Symposium. Karlsruhe, Germany.
• Bellstedt, M. O. and Kröger, D. G. (1991). “Flooding At The Inlet Of An Air-Cooled Condenser Tube Operating In The Upflow Mode”. Proceedings of SAIME National Symposium on Heat Transfer and Thermal Technology. Pretoria, South Africa.
• Du Toit, C. G. and Kröger, D. G. (1991). “Numerical Modelling Of Recirculation In Mechanical-Draught Heat Exchangers”. Proceedings of 1st ICHMT International Numerical Heat Transfer Conference and Software Show. Guildford Surrey, England.
• Conradie, T. A. and Kröger, D. G. (1991). “Enhanced Performance Of A Dry-Cooled Power Plant Through Air Precooling”. Proceedings of International Power Generation Conference. San Diego, USA.
• Kröger, D. G. (1990). “Air-Cooled Heat Exchangers”. Proceedings of Heat Exchangers In Chemical Engineering: A New Perspective. Vereeniging, South Africa.
• Kröger, D. G. (1990). “Thermal-Flow Research Into Dry-Cooling Systems For Power Plants”. Proceedings of VGB Conference “Power Plants 1990”. Essen, Germany.
• Conradie, A. E. and Kröger, D. G. (1989). “PLUME Recirculation In Mechanical-Draft Air-Cooled Heat Exchangers”. Proceedings of National Heat Transfer Conference. Philadelphia, USA.
• Conradie, A. and Kröger, D. G. (1989). “Reduction In Performance Due To Recirculation In Mechanical Draft Cooling Towers”. Proceedings of National Heat Transfer Conference. Philadelphia, USA.
• Du Preez, A. F. and Kröger, D. G. (1988). “Experimental Evaluation Of Aerodynamic Inlet Losses In Natural Draft Dry Cooling Towers”. Proceedings of 6th IAHR Cooling Tower Workshop. Pisa, Italy.
• Kröger, D. G. (1986). “Dry Cooling Research”. Proceedings of VGB Conference South Africa 1987. Johannesburg, South Africa.
• Geldenhuys, J. D. and Kröger, D. G. (1986). “Aerodynamic Inlet Losses In Natural Draft Cooling Towers”. Proceedings of 5th IAHR Cooling Tower Workshop. Monterey, USA.