Desenvolvimento de um rastreador solar microcontrolado para um coletor solar concentrador

• Autor(a) principal: Paiva, Edinei Canuto
• Data de Publicação: 2009
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/737
• topic: Coletor solar concentrador; Rastreamento do sol; Rastreamento de painéis fotovoltaicos; Avaliação Energética; Solar collector concentrator; Photovoltaic panels; Energetic evaluation; CNPQ::CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA::ENERGIZACAO RURAL

This work was carried out with the objective of to building a solar collector concentrator endowed of an automatic system of direction to be used in the production of distilled water and to do the tracking with photovoltaic panels. A collector was opted to build concentrator of linear focus, with reason of equal concentration to 27 coupled to a system tracker ably to locate the clearest regions in the sky. The micro controlled tracking, able to locate clearer regions in the sky was done by the electronic component of the Microchip (PIC 16F877) using four LDRs (Light Depending Resistor,) like sensors of radiation. When this first part was ended an energetic evaluation was done, in order to determine the efficiency of energetic conversion and, finally, an evaluation of photovoltaic panels was made a trackers and these showed a middle increase in the efficiency of up to 70 % regarding fixed panels. The analysis technical and of costs they showed the economical and technical viability of the tracker projected.