hourly solar radiation estimation from limited meteorological data to complete nissing solar radiation data

• Main Authors: Shiraz, Mohd. Aris, Syed Ihtsham-ul-Haq, Gilani, Dimas, F.A
• Format: Conference or Workshop Item
• Published: 2011
• Subjects: TJ Mechanical engineering and machinery
• Online Access: http://eprints.utp.edu.my/8756/1/Hourly_solar_radiation_estimation_from_limited_meteorological_data_to_complete.pdf; http://eprints.utp.edu.my/8756/
• Institution: Universiti Teknologi Petronas

This paper presents two methods to estimate hourly solar radiation from available weather data. The two methods presented in this paper are based on atmospheric transmittance determination using available meteorological data. In the first method a decision matrix was used while in the second method regression correlation of meteorological parameter was used. The calculations results were evaluated using statistical parameter. Though the result shows both of the methods perform well, more satisfactory results were obtained from first method with Root Mean Square Error of 87.6 Watt/m2, Normalized Root Mean Square Error of 8.29%, correlation coefficient of 0.95 and index of agreement of 0.97. Furthermore, the first method only need RH and ambient temperature data which commonly measured in every meteorological station.