Publicação: Comparison between Lebaron-Perez and Dal Pai-Escobedo correction methods for diffuse irradiance measured by the meo shadowring method
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This study aims to determine the effectiveness of two methods of correction of diffuse irradiance measured with shadowbands: LeBaron-Perez method and Dal Pai-Escobedo method. For the LeBaron-Perez method, we use the original coefficients and adjusted coefficients for the atmospheric conditions of Botucatu. Global, direct and diffuse solar irradiances were supplied by the Laboratory of Solar Radiometry of Botucatu. The period assigned for the study comprised the years 1996 to 2005. The results showed that the LeBaron-Perez correction model with the original coefficients are not suitable for correction of diffuse irradiance in Botucatu. Otherwise, the LeBaron-Perez model with adjusted coefficients and Dal Pai-Escobedo model are indicated for the correction of diffuse irradiance in Botucatu measured by shading ring with accuracy of 0.5%.
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Anisotropy, Correction Factors, Diffuse irradiance, Measurement Methods, Shading ring
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Inglês
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ISES Solar World Congress 2017 - IEA SHC International Conference on Solar Heating and Cooling for Buildings and Industry 2017, Proceedings, p. 1423-1433.
