American Journal of Renewable and Sustainable Energy
Articles Information
American Journal of Renewable and Sustainable Energy, Vol.3, No.2, Mar. 2017, Pub. Date: Aug. 8, 2017
Estimation of Global Solar Radiation Using Sunshine and Temperature Based Models for Oko Town in Anambra State, Nigeria
Pages: 8-14 Views: 565 Downloads: 199
Authors
[01] H. O. Nnabuenyi, Department of Science Laboratory, Federal Polytechniques, Oko, Anambra State, Nigeria.
[02] L. N. Okoli, Department of Industrial Physics, Legacy University Okija, Ihiala, Nigeria.
[03] F. C. Nwosu, Department of Electrical/ Electronics Engineering, Federal Polytechniques, Oko, Anambra State, Nigeria.
[04] G. Ibe, Department of Science Laboratory, Federal Polytechniques, Oko, Anambra State, Nigeria.
Abstract
This study used monthly mean daily values of global solar radiation, sunshine duration, maximum temperature, minimum temperature, average temperature of Oko, Nigeria with latitude and longitude (6.05 ͦ N and 7.05 ͦ E) gotten from the archive National Aeronautic Space Administration (NASA). These data were used to develop empirical correlation equations for the estimation of global solar radiation at the site mentioned above. This research presents the comparison between the observed and the predicted values under different geographical and varied meteorological conditions. The comparisons are made using standard statistical tests, namely mean bias error (MBE), root mean square error (RMSE), mean percentage error (MPE) and coefficient of residual mass (CRM). From the result of the statistical analysis, the sunshine and temperature based models proposed for Oko town correlate well with the measured value of the global solar radiation from NASA.
Keywords
Solar Energy, Relative Sunshine Duration, Temperature, Clearness Index, Regression Constants
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