Concentradores solares planos para sistemas fotovoltaicos

• Ano de defesa: 2010
• Autor(a) principal: Sant'anna, Vânia Reis de Souza
• Orientador(a): Oliveira Filho, Delly
• Banca de defesa: Martins, José Helvécio , Monteiro, Paulo Marcos de Barros , Hermsdorff, Wathney , Machado Neto, Lauro de Vilhena Brandão
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Mestrado em Engenharia Agrícola
• Departamento: Construções rurais e ambiência; Energia na agricultura; Mecanização agrícola; Processamento de produ
• País: BR
• Palavras-chave em Português: Concentradores; Sistema fotovoltaico; Arrefecimeto
• Palavras-chave em Inglês: Concentrators; Photovoltaic systems; Cooling
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA
• Link de acesso: http://locus.ufv.br/handle/123456789/3578

This research was developed at the Laboratory of the Energy Area in the Department of Agricultural Engineering, Federal University of Viçosa, in the town of Viçosa located at the latitude of 20° 45¢ 14¢¢ S , longitude of 42° 52¢ 53¢¢ W , altitude of 648.74 m, and standard meridian of 42° 52¢ 54¢¢ W . It was utilized a system formed by a set of photovoltaic modules associated in series and in parallel using different topologies. It was integrated to the photovoltaic modules a solar concentrator made of anodized aluminum, forming an optical system for simultaneously concentrating solar radiation and to allow the system to cooling, with concentration ratio of two suns. The modules were installed with their faces turned toward geographic north, with inclination of 20°. The research aimed to determine the efficiency of a photovoltaic system connected to optical media for concentrating solar energy with the particular condition of operation in the field. Electrical and meteorological measurements were made. They were determined for the form factor and maximum power generated in the generator with mirrors, and without mirrors, used for comparative purposes. After the measurements and calculations, it was found that the efficiency of photovoltaic modules with concentrators was about 30% higher than the photovoltaic modules without them.