Estimating Daily Solar Radiation Using Hargreaves Model in Eastern Malaysia

Abstract:

This paper presents the forecasting of solar radiation in Kelantan, Eastern Malaysia for the year of 2011 using Hargreaves model. This estimation is based on latitude and daily minimum and maximum temperature in Kelantan. The measured and estimated solar radiation data were compared for the year 2011 and analyzed using coefficient of residual mass (CRM), root mean squared error (RMSE), coefficient of determination (R²) and percentage error (e). The results showed that the value of CRM is 0.09, it indicates the tendency of the estimation model to under-estimate the measure solar radiation. Meanwhile, the value of RMSE is 8.21% and the value of R² is 0.8661, closed to 1 indicates that about 86.61% of the total variation is explained in the data. For the e, the value is 7.98%, it indicates that the model estimation is good.

• Periodical: Applied Mechanics and Materials (Volume 699)
• Pages: 564-569
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.699.564
• Online since: November 2014
• Authors: Mohd Irwan Yusoff*, Muhamad Irwanto, Safwati Ibrahim, Gomesh Nair, Syed Idris Syed Hassan, Muhamad Fitra
• Keywords: Air Temperature, Hargreaves Model, Solar Radiation

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