Estudo de desempenho de um sistema híbrido fotovoltaico/térmico

Autores

DOI:

https://doi.org/10.33448/rsd-v10i7.16156

Palavras-chave:

Fotovoltaico; Sistema híbrido; PV; PVT.

Resumo

Este trabalho apresenta um estudo de desempenho de um sistema híbrido fotovoltaico/térmico (PVT), comparando-o com um sistema fotovoltaico tradicional (PV). Foram analisadas a potência elétrica e térmica, a eficiência e a energia produzida pelos sistemas. O módulo fotovoltaico (PV) utilizado foi o MSX 77 da marca SOLAREX, composto por células solares policristalinas, cuja potência de pico é de 77 Watts. O sistema PVT analisado foi do tipo PVT-líquido, composto pelo mesmo módulo PV e um coletor solar plano do tipo placa, a alimentação de água do coletor foi do tipo forçada por gravidade. Para determinar as curvas características do módulo PV e por consequência a potência elétrica máxima gerada, foi desenvolvido um banco de carga formado por resistores de potência. A potência térmica foi quantificada aferindo a vazão da água que alimentava o coletor e a diferença de temperatura da água de entrada e saída. Com as potências e a radiação solar incidente sobre os sistemas, foram determinadas as eficiências. O sistema PVT proporcionou a redução da temperatura do módulo PV, aumentando a eficiência de geração elétrica, proporcionando um aumento na ordem dos 6,9% na energia elétrica média diária. O sistema PVT além de proporcionar um aumento de energia elétrica, ainda fornece energia térmica com uma eficiência superior à elétrica. A água aquecida pode ser utilizada para alimentar sistemas de aquecimento de água para banho, contribuindo para redução do consumo de energia elétrica de uma residência.

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Publicado

11/06/2021

Como Citar

MEDEIROS, R. R. B.; LIMA, A. V. N. A.; DINIZ, G. F.; MELO, V. M.; SOUZA, L. G. M. de; SILVA, K. C. G. da. Estudo de desempenho de um sistema híbrido fotovoltaico/térmico. Research, Society and Development, [S. l.], v. 10, n. 7, p. e1210716156, 2021. DOI: 10.33448/rsd-v10i7.16156. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/16156. Acesso em: 17 jul. 2024.

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Engenharias