Estudo do impacto da geração fotovoltaica e sistema de ar condicionado no fator de potência do centro de aulas das engenharias da UFG

• Ano de defesa: 2022
• Autor(a) principal: Oliveira, Janine Cavalcante de
• Orientador(a): Belchior, Fernando Nunes
• Banca de defesa: Belchior, Fernando Nunes, Moreira, Leonardo de Queiroz, Rabelo, Diogo de Souza, Domingos, José Luis
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Goiás
• Programa de Pós-Graduação: Programa de Pós-graduação em Engenharia de Produção (FCT)
• Departamento: Faculdade de Ciências e Tecnologia - FCT (RMG)
• País: Brasil
• Palavras-chave em Português: Qualidade da energia; Sistema fotovoltaico; Sistema de refrigeração; Fator de potência; Monitoramento
• Palavras-chave em Inglês: Power quality; Photovoltaic system; Refrigeration system; Power factor; Monitoring
• Área do conhecimento CNPq: ENGENHARIAS::ENGENHARIA DE PRODUCAO
• Link de acesso: http://repositorio.bc.ufg.br/tede/handle/tede/12508

In 2021, the installed power of photovoltaic solar energy in Brazil grew 70% compared to 2020. Furthermore, as it is a tropical country, the diffusion of air conditioning systems and the search for thermal comfort contribute to the increase in energy consumption. In this context, this work has the general objective of evaluating how an electrical conduction system of the Variable Refrigerant Volume type and a photovoltaic solar energy system generated some parameters that involve the quality of electrical energy in a classroom at the Federal University of Goiás. For this aim, the sizing of the AC system was evaluated. To do so, two different moments were analyzed considering data collected by an energy analyzer, the parameters are current, voltage, power and power factor of the building as a hole, the PV and AC systems. It is shown that the cooling capacity of the AC is proper, indicating the correct dimensioning of the thermal load. It was noted a reduction in the power factor, which has values below 0.92 capacitive, at times when only part of the air conditioning system was activated, indicating, at these moments, oversizing of the capacitor bank installed to compensate the energy of the condensing unit motors. Thus, it is suggested the installation of two capacitors for each phase and, through automation, they could be activated accordingly to the phase and the amount of cooling devices in operation.