ASSESSING THE PERFORMANCE OF GLOBAL SOLAR RADIATION EMPIRICAL EQUATIONS IN SOKOTO, NIGERIA USING METEOROLOGICAL PARAMETERS

MB Garba; A Muhammad; M Musa; AG Mohammed

doi:10.4314/njt.372.1666

ASSESSING THE PERFORMANCE OF GLOBAL SOLAR RADIATION EMPIRICAL EQUATIONS IN SOKOTO, NIGERIA USING METEOROLOGICAL PARAMETERS

Authors

MB Garba DEPARTMENT OF PHYSICS, KANO UNIVERSITY OF SCIENCE AND TECHNOLOGY, WUDIL, KANO STATE NIGERIA
A Muhammad DEPARTMENT OF PHYSICS, KANO UNIVERSITY OF SCIENCE AND TECHNOLOGY, WUDIL, KANO STATE NIGERIA
M Musa DEPARTMENT OF PHYSICS, NIGERIAN POLICE ACADEMY, WUDIL, P. M. B. 3474, KANO - KANO STATE NIGERIA
AG Mohammed DEPARTMENT OF MATERIAL SCIENCE, ERCIYES UNIVERSITY, KAYSERI- TURKEY

DOI:

https://doi.org/10.4314/njt.372.1666

Keywords:

coefficient of determination, solar radiation, sunshine hours, meteorological parameters, temperature

Abstract

In this study, the meteorological parameters measured in Sokoto (12.55^oN, 5.15^o E) for a period of 10 years (2005-2014) were obtained from the Nigerian Meteorological Agency Sultan Abubakar III International Airport, Sokoto state. The data used include Gunn-Bellani solar radiation, sunshine hour duration, maximum and minimum temperatures, which were analyzed using modified Angstrom models to estimate the monthly mean global solar radiation in Sokoto. Four statistical methods have been used in order to evaluate the results namely; Mean Bias Error (MBE), Mean Percentage Error (MPE), Root Mean Square Error (RMSE) and T-statistic. The standard error (SE) and coefficient of determination (R²) were also obtained for each model. Based on the result obtained models 4 & 5 gave a lower RMSE, and R² approaches unity, which indicates that there is a good agreement between measured and estimated global solar radiation.

http://dx.doi.org/10.4314/njt.v37i2.10

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Published

2018-03-31

Issue

Vol. 37 No. 2 (2018)

Section

Chemical, Industrial, Materials, Mechanical, Metallurgical, Petroleum & Production Engineering

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How to Cite

ASSESSING THE PERFORMANCE OF GLOBAL SOLAR RADIATION EMPIRICAL EQUATIONS IN SOKOTO, NIGERIA USING METEOROLOGICAL PARAMETERS. (2018). Nigerian Journal of Technology, 37(2), 358-364. https://doi.org/10.4314/njt.372.1666