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Abstract(s)
O trabalho desenvolvido teve como principal objetivo o estudo dos coeficientes de transferência de calor que participam no balanço de energia de um painel fotovoltaico flutuante. Através desta análise, pretendeu-se avaliar a possibilidade de utilização da metodologia adotada na previsão do comportamento térmico para o software de simulação PVSYST. A metodologia adotada contou com várias etapas para a análise. Depois de recolhidos os dados de inputs através do PVGIS e de selecionado um painel fotovoltaico, foi assumido como caso de estudo o plano terrestre. Em seguida, atendendo a um balanço energético, em estado estacionário, foram desenvolvidos três modelos de comportamento térmico do painel. As análises feitas foram discriminadas para dois cenários distintos de operação do painel: regime de instalação livre e semi-isolado. A comparação entre os resultados obtidos utilizando os Modelos e o software de simulação permitiram selecionar o Modelo 2 como modelo a utilizar na fase seguinte de estudo, que consiste em avaliar o painel em operação no plano de água. Para a transposição para o plano de água, foi necessário um ajuste das condições climáticas, nomeadamente a temperatura ambiente e a velocidade do vento. Para cada simulação efetuada pelo Modelo 2 foi realizada uma simulação em PVSYST e os resultados obtidos evidenciam um ligeiro aumento do RMSE na situação de operação no plano de água face ao plano terrestre. A análise dos resultados obtidos não permitiu validar a utilização do software PVSYST na modelação do comportamento térmico de painéis fotovoltaicos flutuantes. No entanto, os resultados apresentados constituem avaliações preliminares importantes que devem ser tidas em consideração para trabalhos futuros.
The main objective of this work was to study the heat transfer coefficients that participate in the energy balance of a floating photovoltaic panel. Through this analysis, it was planned to evaluate the possibility of using the methodology adopted in the prediction of thermal behavior for the PVSYST simulation software. The adopted methodology had several stages for the analysis. After collecting input data through PVGIS and selecting a photovoltaic panel, the terrestrial plane was assumed as a case study. Then, considering an energy balance, in steady state, three models of thermal behavior of the panel were developed. The analyzes made were broken down to two different scenarios of panel operation: free and semi-isolated installation regime. The comparison between the results obtained using the Models and the simulation software allowed to select the Model 2 as a model to be used in the next phase of study, which consists of evaluating the panel in operation in the water plane. For the transposition to the water plane, it was necessary to adjust the climatic conditions, namely the ambient temperature and the wind speed. For each simulation performed by Model 2, a PVSYST simulation was performed and the results obtained show a slight increase in the RMSE in the operation situation in the water plane compared to the terrestrial plane. The analysis of the results obtained did not allow validating the use of the PVSYST software in modeling the thermal behavior of floating photovoltaic panels. However, the results presented are important preliminary assessments that must be considered for future work.
The main objective of this work was to study the heat transfer coefficients that participate in the energy balance of a floating photovoltaic panel. Through this analysis, it was planned to evaluate the possibility of using the methodology adopted in the prediction of thermal behavior for the PVSYST simulation software. The adopted methodology had several stages for the analysis. After collecting input data through PVGIS and selecting a photovoltaic panel, the terrestrial plane was assumed as a case study. Then, considering an energy balance, in steady state, three models of thermal behavior of the panel were developed. The analyzes made were broken down to two different scenarios of panel operation: free and semi-isolated installation regime. The comparison between the results obtained using the Models and the simulation software allowed to select the Model 2 as a model to be used in the next phase of study, which consists of evaluating the panel in operation in the water plane. For the transposition to the water plane, it was necessary to adjust the climatic conditions, namely the ambient temperature and the wind speed. For each simulation performed by Model 2, a PVSYST simulation was performed and the results obtained show a slight increase in the RMSE in the operation situation in the water plane compared to the terrestrial plane. The analysis of the results obtained did not allow validating the use of the PVSYST software in modeling the thermal behavior of floating photovoltaic panels. However, the results presented are important preliminary assessments that must be considered for future work.
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Keywords
Painéis fotovoltaicos flutuantes Modelação PVSYST PVGIS Floating photovoltaic panels Modeling