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25m2 target-aligned heliostat with closed-loop control

Author: Roos, TH ; Zwane, NX ; Kruger, E ; Perumal, S ; Cathro, R Date: Sep 2007 A 252m target-aligned research heliostat with closed-loop control, with a theoretical concentration of 80 suns, has been built at CSIR in South Africa. The heliostat has four degrees of freedom: Azimuth, Elevation, Rotation and Pitch. A control ... Read more
Can solar -biogas hybrid systems be the solution to sustainable energy supply in rural areas?

Author: Tazvinga, Henerica ; Amigun, B ; Stafford, William HL ; Mapako, M Date: Apr 2011 Access to modern energy services is a fundamental prerequisite for property reduction and sustainable human development. Many remote rural South African communities are characterized by low energy demand and low population densities, making ... Read more
Design philosophy and construction of a high concentration compound parabolic concentrator

Author: Roos, TH ; Maharajh, Dheepak M ; Griffith, DJ Date: Sep 2010 A compound parabolic concentrator (CPC) with a concentration ratio of 16:1 is under development at CSIR for volumetric receiver and solar fuels development. The ideal shape has been approximated by 6 and 12 facets in the longitudinal and ... Read more
Introductory guide to solar energy

Author: Cawood, WN Date: 1976 Since primitive man first set fire to a heap of twigs to warm his cave, mankind has been making use of the earth's energy resources. Fortunately, we still have the sun, which offers us an inexhaustible source of non-polluting energy. Read more
Maximising the sun

Author: Conradie, Dirk CU Date: Aug 2010 South Africa is blessed with some of the best quality solar radiation in the world. In the light of this many exciting opportunities exist to utilize the sun to its full potential in the design of energy efficient buildings. Passive solar ... Read more
Potential of solar heat for industrial processes: a summary of the key findings from Solar Payback

Author: Klein, Peter ; Surridge, K ; Wolf, M Date: Jun 2018 Solar thermal technologies present an opportunity to provide clean and renewable thermal energy for process heating when the process temperature is below 400 oC. Project Solar PayBack has been initiated to increase the awareness around the ... Read more
Renewable rural electrification: Prediction of sustainability in South Africa: Case study: Wind and solar photo-voltaic with lead acid battery storage

Author: Rogers, DEC ; Brent, AC Date: Nov 2008 A case study methodology and assessment of renewable energy technology and sustainable development is applied to a DME rural village project. Wind, solar and lead acid battery energy storage technology were used for off-grid electrification. ... Read more
Solar payback: A review of preliminary energy audits and solar integration studies

Author: Klein, Peter ; Zoschke, T ; Dos Santos, R ; Surridge, K Date: Nov 2019 Solar thermal technologies have the potential to provide clean and low cost thermal energy to South African industries. Case studies of “real world” processes are critical to encourage the uptake of these solar thermal technologies and ... Read more
Solar selective absorber functionality of carbon nanoparticles embedded in SiO2, NiO and ZnO matrices

Author: Katumba, G ; Makiwa, G ; Olumekor, L ; Forbes, A Date: Jan 2008 It is possible to design an optical material, through control of the substrate and coatings, to absorb a large fraction of the solar spectrum and to emit very little radiation energy in the near and far infra-red wavelength range. This requires ... Read more

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Browsing by Subject "Solar"

Browsing by Subject "Solar"

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