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Optical filtering of solar radiation to increase performance of concentrator systems
conference contributionposted on 2011-03-09, 16:41 authored by M. Sabry, Ralph Gottschalg, Tom BettsTom Betts, M.A.M. Shaltout, A.F. Hassan, M.M. El-Nicklawy, David Infield
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 a heat source, so adding to the potential value of the system.
- Mechanical, Electrical and Manufacturing Engineering
- Centre for Renewable Energy Systems Technology (CREST)
CitationSABRY, M. ... et al, 2002. Optical filtering of solar radiation to increase performance of concentrator systems. IN: Conference Record of the 29th IEEE Photovoltaic Specialists Conference 2002, New Orleans, USA, 19th-24th May, pp. 1588-1591.
- VoR (Version of Record)
NotesThis conference paper [© IEEE] is also available at: http://dx.doi.org/10.1109/PVSC.2002.1190918. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.