Access to reliable and affordable energy is an essential input to sustainable development. Most of the rural communities in Zambia lack access to modern energy. Renewable energy technologies offer a solution to this. Through the help of various stakeholders, various renewable energy technologies...
Download PDF ↓The traditional high concentrating photovoltaic systems have proved to be expensive as they use high grade silicon solar cells, highly specular reflecting materials and require tracking arrangements which are equally expensive. The problem of un-even illumination creates heat-sinks which have not...
Download PDF ↓The production of energy from fossil fuels and nuclear materials has environmental drawbacks. These drawbacks include the creation of nuclear waste and the pollution associated with fossil fuels which lead to global warming and climate change. It is apparent that alternative and sustainable...
Download PDF ↓A high absorptance (>0.90) is an essential factor in the efficient use of a .solar collector. However, equally important is the need to keep the emittance as low as possible (<0.20). Both the.absoptance and emittance depend on the optical properties of the coating and the substrate. The solar...
Download PDF ↓The reduction of Masuku Cassiterite gravity concentrate by charcoal was investigated in the temperature range of 850 to 1100oC. A combination of sample weight loss measurements, exist gas analysis and chemical analysis of the reaction products was used to monitor the course of the reaction.The...
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