Estimation of monthly average daily global solar irradiation using artificial neural networks |
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Authors: | J Mubiru EJKB Banda |
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Affiliation: | aDepartment of Physics, Makerere University, P.O. Box 7062, Kampala, Uganda |
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Abstract: | This study explores the possibility of developing a prediction model using artificial neural networks (ANN), which could be used to estimate monthly average daily global solar irradiation on a horizontal surface for locations in Uganda based on weather station data: sunshine duration, maximum temperature, cloud cover and location parameters: latitude, longitude, altitude. Results have shown good agreement between the estimated and measured values of global solar irradiation. A correlation coefficient of 0.974 was obtained with mean bias error of 0.059 MJ/m2 and root mean square error of 0.385 MJ/m2. The comparison between the ANN and empirical method emphasized the superiority of the proposed ANN prediction model. |
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Keywords: | Artificial neural networks Global solar irradiation Sunshine hours Cloud cover Maximum temperature Model |
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