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Open Access research which pushes advances in bionanotechnology

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SIPBS is a major research centre in Scotland focusing on 'new medicines', 'better medicines' and 'better use of medicines'. This includes the exploration of nanoparticles and nanomedicines within the wider research agenda of bionanotechnology, in which the tools of nanotechnology are applied to solve biological problems. At SIPBS multidisciplinary approaches are also pursued to improve bioscience understanding of novel therapeutic targets with the aim of developing therapeutic interventions and the investigation, development and manufacture of drug substances and products.

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Optical filtering of solar radiation to increase performance of concentrator systems

Sabry, M. and Gottschalg, R. and Betts, T.R. and Shaltout, M.A.M. and Hassan, A.F. and El-Nicklawy, M.M. and Infield, D.G. (2002) Optical filtering of solar radiation to increase performance of concentrator systems. In: 29th IEEE Photovoltaic Specialists Conference, 2002-05-19 - 2002-05-24.

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Abstract

Solar cell overheating due to high irradiation levels is a significant problem facing concentrator systems. Some form of cooling is needed to maintain the highest possible performance of such systems. Liquid filters may be used to inhibit unwanted solar radiation from reaching the cell and thus limit cell-operating temperatures. The performance of the cooling will depend on the optical properties of the liquid filter applied, as illustrated in this paper on the basis of different filters. An ideal filter is identified and its effects on the systems are described. It is-shown, on the basis of system modeling calculations, that cell performance could be increased by up to 25% using an ideal filter. Such a system can reach an efficiency of 22% in a. realistic working environment compared to a STC value of 16%. The absorbed part of the incident radiation can be used as heat source, so adding to the potential initial value of the system.