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Abstract(s)
Com a crescente na população mundial e o concomitantemente crescimento na busca por energia elétrica, aumentam-se as possibilidades de aquisição de energia por meios não convencionais. Um método em constante crescente que se destaca no momento atual é a aplicação de painéis fotovoltaicos para conversão de radiação solar em energia renovável e inesgotável. Por conta da magnitude desta temática a presente dissertação visou aferir a viabilidade da integração de sistemas de painéis fotovoltaicos em um estudo de caso na cidade de Bragança, Portugal.
Neste estudo buscou-se avaliar a viabilidade da integração de seis simulações de painéis solares fotovoltaicos em cinco sistemas de climatização e preparo de águas quentes sanitárias, seguindo o prescrito no Decreto-Lei 101-D/2020 a respeito dos edifícios de necessidades quase nulas de energia e no Despacho n° 6476-E/2021 que determina o cálculo das necessidades energéticas para este tipo de edifício.
Os resultados apontaram diminuição do consumo energético em todas as soluções, em especial na solução A, chegando a uma redução anual no pagamento por energia de 33,28% e na solução B reduzindo 40,15% no pagamento anual. Estes resultados de maior expressividade foram alcançados utilizando-se de sete painéis fotovoltaicos de 485W de potência nominal, os quais foram capazes de produzir 4.967 kWh de potência ao longo de um ano. As soluções técnicas de climatização que foram capazes de apresentar a maior redução percentual em seu consumo e pagamento por energia são aquelas que possuem como combustíveis primários para abastecimento dos equipamentos a energia elétrica e o gás natural. Ainda o estudo aponta que o uso de equipamentos movidos a biomassa, como salamandras e caldeiras, no cenário atual do ano de 2023 com a alta do gás natural e dos pellets para queima em toda a Europa, gera um aumento expressivo de mais de € 300,00 no pagamento mensal por energia.
With the growing world population and the concomitant growth in the search for electric energy, the possibilities of acquiring energy non-conventional means are increasing. A constantly growing method that stands out at the present time is the application of photovoltaic panels to convert solar radiation into renewable and inexhaustible energy. Because of the magnitude of this theme, the present dissertation aimed to assess the feasibility of integrating photovoltaic panel systems in a case of study in the city of Bragança, Portugal. The study aimed to evaluate the feasibility of integrating six simulations of photovoltaic solar panels in five HVAC and domestic hot water systems, following the prescriptions of the Decree-Law 101-D/2020 regarding Nearly Zero Energy Buildings (NZEB) and Dispatch 6476-E/2020 which determines the calculation of energy needs for this type of building. The results showed a decrease in energy consumption in all solutions, especially in solution A, reaching an annual reduction in energy payments of 33,28% and in solution B reducing annual payments by 40,15%. These significant results were achieved using seven photovoltaic panels of 485 W nominal power, which were capable to produce 4.967 kWh of power over the course of a year. The HVAC solutions that were able to present the greatest percentage of reduction in their consumption and payment for energy are those that have electricity and natural gas as their primary fuels for supplying the equipment. The study also indicates that the use of biomass-powered equipment, such as stoves and boilers, in the current scenario for the year of 2023, with the increase in natural gas and burning pellets in all Europe generates a significant increase of over € 300,00 in monthly energy payments.
With the growing world population and the concomitant growth in the search for electric energy, the possibilities of acquiring energy non-conventional means are increasing. A constantly growing method that stands out at the present time is the application of photovoltaic panels to convert solar radiation into renewable and inexhaustible energy. Because of the magnitude of this theme, the present dissertation aimed to assess the feasibility of integrating photovoltaic panel systems in a case of study in the city of Bragança, Portugal. The study aimed to evaluate the feasibility of integrating six simulations of photovoltaic solar panels in five HVAC and domestic hot water systems, following the prescriptions of the Decree-Law 101-D/2020 regarding Nearly Zero Energy Buildings (NZEB) and Dispatch 6476-E/2020 which determines the calculation of energy needs for this type of building. The results showed a decrease in energy consumption in all solutions, especially in solution A, reaching an annual reduction in energy payments of 33,28% and in solution B reducing annual payments by 40,15%. These significant results were achieved using seven photovoltaic panels of 485 W nominal power, which were capable to produce 4.967 kWh of power over the course of a year. The HVAC solutions that were able to present the greatest percentage of reduction in their consumption and payment for energy are those that have electricity and natural gas as their primary fuels for supplying the equipment. The study also indicates that the use of biomass-powered equipment, such as stoves and boilers, in the current scenario for the year of 2023, with the increase in natural gas and burning pellets in all Europe generates a significant increase of over € 300,00 in monthly energy payments.
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Keywords
Energia Fotovoltaicos Climatização Renovável