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Effect of reflector geometry in the annual received radiation of low concentration photovoltaic systems
Instituto de Telecomunicações, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal.ORCID iD: 0000-0002-1719-197X
Instituto de Telecomunicações, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal.
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Energy system.
Ecole Polytechnique Universitaire de Montpellier, Montpellier, France.
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2018 (English)In: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 11, no 7, article id 1878Article in journal (Refereed) Published
Abstract [en]

Solar concentrator photovoltaic collectors are able to deliver energy at higher temperatures for the same irradiances, since they are related to smaller areas for which heat losses occur. However, to ensure the system reliability, adequate collector geometry and appropriate choice of the materials used in these systems will be crucial. The present work focuses on the re-design of the Concentrating Photovoltaic system (C-PV) collector reflector presently manufactured by the company Solarus, together with an analysis based on the annual assessment of the solar irradiance in the collector. An open-source ray tracing code (Soltrace) is used to accomplish the modelling of optical systems in concentrating solar power applications. Symmetric parabolic reflector configurations are seen to improve the PV system performance when compared to the conventional structures currently used by Solarus. The parabolic geometries, using either symmetrically or asymmetrically placed receivers inside the collector, accomplished both the performance and cost-effectiveness goals: for almost the same area or costs, the new proposals for the PV system may be in some cases 70% more effective as far as energy output is concerned.

Place, publisher, year, edition, pages
MDPI AG , 2018. Vol. 11, no 7, article id 1878
Keywords [en]
Concentrating photovoltaic (C-PV) solar systems, Maximum reflector collector (MaReCo), Ray-tracing, Reflector design, Soltrace, Cost effectiveness, Geometry, Photovoltaic cells, Photovoltaic effects, Ray tracing, Reflection, Solar energy, Solar power generation, Concentrating photovoltaic, Concentrating photovoltaic systems, Concentrating solar power, Concentrator photovoltaics, Conventional structures, Open systems
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:hig:diva-27864DOI: 10.3390/en11071878ISI: 000441830500262Scopus ID: 2-s2.0-85051229803OAI: oai:DiVA.org:hig-27864DiVA, id: diva2:1245974
Available from: 2018-09-06 Created: 2018-09-06 Last updated: 2018-09-06Bibliographically approved

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Gomes, JoãoOlsson, Olle

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