Estimation of monthly global solar radiation from sunshine duration measurement in Elaziğ

İnci Türk Toğrul, Hasan Toğrul and Dugyu Evin

Renewable Energy, 2000, vol. 19, issue 4, 587-595

Abstract: In this study, the relation between a and b terms and n̄/N̄ was investigated to estimate the global solar radiation in Elaziğ by using different regression analyses. Equations which contain the whole year and two different periods, winter and summer, were developed. Eqs. (5)–(7) which represent second, third and fourth degree equations respectively, gave the best results in all of the equations having an error less than 1%. Contrary to expectations, the equations developed for summer and winter periods had higher errors than the others.

Keywords: Estimation of solar radiation; Angstrom constants; Sunshine duration (search for similar items in EconPapers)
Date: 2000
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Citations: View citations in EconPapers (11)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:19:y:2000:i:4:p:587-595

DOI: 10.1016/S0960-1481(99)00084-1

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