International Journal of Energy and Environmental Research (IJEER)

EA Journals

Global Solar Radiation Modeling on a Horizontal Surface Using Polynomial Fitting

Abstract

An attempt has been made to use a polynomial fitting to model global solar radiation on a horizontal surface that was observed by using Pyranometer at University of Ghana Legon, (U.G), situated in Accra, Ghana. The observed solar radiation data was filtered by using fitting and smoothing methods. The polynomial data fitting method was tested by using different degrees of polynomial curve fittings. The root mean square error (RMSE) was used to calculate the error and the R2  (coefficient of determination) value was also determined. The polynomial fittings were carried out for various periods (pre- harmattan, early harmattan and late harmattan period) of the year. 

Keywords: Coefficient of Determination, Curve Fitting, Error, Polynomial, Pyranometer, RMSE, Smoothing, Solar Radiation

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This work by European American Journals is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 Unported License

 

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Email ID: editor.ijeer@ea-journals.org
Impact Factor: 7.01
Print ISSN: 2055-0197
Online ISSN: 2055-0200
DOI: https://doi.org/10.37745/ijeer.13

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