Correlations for estimation of daily global solar radiation with hours of bright sunshine in Turkey

Kadir Bakirci

Energy, 2009, vol. 34, issue 4, 485-501

Abstract: In this study, seven different empirical equations are employed to estimate the monthly average daily global solar radiation on a horizontal surface for provinces in the different regions of Turkey, using only the relative duration of sunshine. Daily global solar radiation and sunshine measurement data collected for the provinces of Turkey are obtained from the Turkish State Meteorological Service. The regression constants of the new models developed in this study are found for the provinces of Turkey, as well as that of some models given in the literature. In order to indicate the performance of the models, the statistical test methods of the mean bias error (MBE), mean absolute bias error (MABE), mean relative error (MRE), root mean square error (RMSE) and correlation coefficient (r) are used.

Keywords: Solar energy; Global solar radiation; Empirical models; Correlation; Turkey (search for similar items in EconPapers)
Date: 2009
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Citations: View citations in EconPapers (39)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:34:y:2009:i:4:p:485-501

DOI: 10.1016/j.energy.2009.02.005

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