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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
Comparative Study Of Solar Irradiation Models
Submission Author:
Leonardo Jose Geovo Coronado , RS
Co-Authors:
Leonardo Jose Geovo Coronado, Justo José Roberts, Andrés Armando Mendiburu Zevallos
Presenter: Leonardo Jose Geovo Coronado
doi://10.26678/ABCM.ENCIT2020.CIT20-0202
Abstract
With increasing of installation of solar systems in the world, the knowledge of the incident solar irradiance in tilt surfaces is relevant. In most cases, only the global horizontal irradiance is available. The principal objective of the present article is assessing the performance of different combinations between some of the most used models in the literature, namely the decomposition and transposition models, to determine hourly global irradiance in the tilt surface from the global horizontal irradiance. In order to select the models that have the best performance, a total of 16 Decomposition-Transposition models were evaluated. These 16 compositions were derived from the combination of 4 decomposition models and 4 transposition models. All models were implemented in a computational routine and the results were compared to the values obtained from the software Radiasol 2, at 30º tilt for Porto Alegre – Brazil. The model that showed the best results was Perez model in three different combinations (OH-Pe, Re-Pe and Er-Pe) with a rRMSE between 5.68% - 6.13%, and a rMBE from -2.15% to -2.47%.
Keywords
Decomposition Model, Transposition Model, Global Tilted Irradiance, Global Horizontal Irradiance, renewable energy
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