Estudo da aplicação de sistemas de ar-condicionado solares no prédio do DEN da Faculdade de Engenharia de Guaratinguetá-UNESP
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Data
2019-12-13
Autores
Campos, Matheus Felipe de Souza
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Editor
Universidade Estadual Paulista (Unesp)
Resumo
A utilização de fontes alternativas de energia vem crescendo mundialmente. Dentre estas
fontes, a energia solar tem sido alvo de cada vez mais estudos. Utilizar a energia solar para
o acionamento de sistemas de ar-condicionado apresenta a vantagem da demanda destes
sistemas crescer durante os períodos de maior irradiação. Utilizando-se um sistema de arcondicionado de absorção acionado por água quente oriundade coletoressolares e umsistema
de compressão de vapor, acionado eletricamente com energia produzida por painéis
fotovoltaicos, é feito um estudo no qualse verifica a capacidade de atendimento a um edifício
de estudo, no caso o prédio dos departamentos de Energia e de Engenharia Elétrica da
Faculdade de Engenharia de Guaratinguetá-UNESP. Para estes sistemas são avaliados os
consumos de energia de cada um e comparados com o atual que se utiliza de aparelhos tipo
split e tipo janela. A definição da carga térmica de resfriamento para obtenção de conforto
térmico é calculada através do software EnergyPlus versão 9.1.0, através do plugin
OpenStudio versão 2.8.1, para o software de arquitetura SketchUp versão 2017. Através do
valor da carga térmica necessária, calcula-se o consumo de energia elétrica para cada sistema,
através dasformulaçõessugeridas pelo Projeto Solair, adaptando-se ométodo para aplicações
nacionais. Paraosistema solar-térmicoé calculadoumpayback de aproximadamente 15 anos,
enquanto para o sistema solar-elétrico é encontrado um payback de aproximadamente 5
anos, após algumas otimizações. O sistema solar-elétrico apresenta viabilidade técnica com
um bom retorno
The use of alternative sources of energy has been growing worldwide. Among these sources, solar energy has been studied quite often. Using solar energy to drive air conditioning systems has the advantage that the demand for these systems increases during periods of higher radiation. Using a hot water-driven absorption air-conditioning system from solar collectors and an electrically-powered vapor compression system powered by photovoltaic panels, a study is carried out in which the ability to service a building is verified, in this case the building of the Department of energy and the Department of Electrical Engineering of the Faculty of Engineering of Guaratinguetá-UNESP. For these air conditioning systems the energy consumptions of each one are evaluated and compared with the current one that uses of devices split and window type. The definition of the cooling thermal load for thermal comfort is calculated using EnergyPlus version 9.1.0 software, OpenStudio version 2.8.1 plugin through SketchUp version 2017, an architecture software. The electric energy consumption for each system is obtained through the formulations suggested by the Solair Project, adapting the method to national applications. For the solar-thermal system a payback of approximately 15 years is calculated, while for the solar-electric system a payback of approximately 5 years is found after some optimizations. The solar-electric system has technical feasibility with a good return
The use of alternative sources of energy has been growing worldwide. Among these sources, solar energy has been studied quite often. Using solar energy to drive air conditioning systems has the advantage that the demand for these systems increases during periods of higher radiation. Using a hot water-driven absorption air-conditioning system from solar collectors and an electrically-powered vapor compression system powered by photovoltaic panels, a study is carried out in which the ability to service a building is verified, in this case the building of the Department of energy and the Department of Electrical Engineering of the Faculty of Engineering of Guaratinguetá-UNESP. For these air conditioning systems the energy consumptions of each one are evaluated and compared with the current one that uses of devices split and window type. The definition of the cooling thermal load for thermal comfort is calculated using EnergyPlus version 9.1.0 software, OpenStudio version 2.8.1 plugin through SketchUp version 2017, an architecture software. The electric energy consumption for each system is obtained through the formulations suggested by the Solair Project, adapting the method to national applications. For the solar-thermal system a payback of approximately 15 years is calculated, while for the solar-electric system a payback of approximately 5 years is found after some optimizations. The solar-electric system has technical feasibility with a good return
Descrição
Palavras-chave
Ar-condicionado solar, Painel Fotovoltaico, Solar air-conditioner, Photovoltaic Panel, Solar Collector, Alternative Energy Sources, Coletores solares, Energia – Fontes alternativas