Comparative Analysis of Estimation of Global Solar Radiation at Warri using Two Models with Statistical Techniques
Journal Title: Caspian Journal of Applied Sciences Research - Year 2012, Vol 1, Issue 13
Abstract
Validation of the results using error analysis show that the estimation with sunshine hours for Angstrom-Prescott has error values of mean bias error = 0.0438, root mean square error = 0.9860, mean percentage error = -1.0991, while artificial neural network has mean bias error = 0.0115, root mean square error = 0.2838, mean percentage error = 0.3830 respectively. For maximum temperature estimation with Angstrom-Prescott, mean bias error = 0.4367, root mean square error = 1.6052, mean percentage error = -2.81650, and with artificial neural network, mean bias error = -0.1650, root mean square error = 1.1442, mean percentage error = 0.4326 respectively. The estimation of relative humidity for Angstrom-Prescott mean bias error = 0.1078, root mean square error = 1.2987, mean percentage error = -1.0945, and for artificial neural network, mean bias error = -0.0105, root mean square error = 0.1289, mean percentage error = 0.0917, and the estimation with cloudiness, Angstrom-Prescott has mean bias error = 0.2143, root mean square error = 1.7231, mean percentage error = -2.2521, while artificial neural network has mean bias error = 0.0556, root mean square error = 0.3386 and mean percentage error = -0.1017 respectively. The values of correlation coefficient and coefficient of determination of Angstrom-Prescott and artificial neural network were also carried out.
Authors and Affiliations
Ekpe Elom, Ibeh Friday, Agbo Amechi, Ezeh Innocent, Onah Ugadu
Keywords
Related Articles
- EP ID EP156327
- DOI -
- Views 114
- Downloads 0
Synthesis of new complexes surfactants based on fatty acids and Study the effect of length of fatty acid chain on the petroleum and surface-active properties
In the present work, a series of reactions between ethylenediamine and triethylenetetramine with different types of fatty acids were conducted to form various synthesized complexes. The surface-active properties of...
Study of Forest Road Engineering and Sustainable Development of Forest Margin Villages in Northern Forest of Iran
Roads are one of the important factors for optimum forest product operations and services, especially their roles in the development of forest villages and margins. This study was completed in the Seri Dallak khile...
Shear Strength Prediction of Crushed Stone Reinforced Concrete Deep Beams without Stirrups
In this investigation the shear strength behaviour of crushed stone reinforced concrete deep beams without shear reinforcement have been studied, for this purpose eleven reinforced crushed stone concrete deep beam...
Spot Weld Growth on 304L Austenitic Stainless Steel for Equal and Unequal Thicknesses
The austenitic stainless steel (304L) is common material that used in spot welding research. It has been welded and analyzed for many types of conditions and also for many situations, previously. In this research,...
Application of Complex Surfactant Based on Cottonseed Oil as CO[sub]2[/sub]-Corrosion Inhibitor and for Removing Thin Oil Slicks from Water Surface
The corrosion inhibition and adsorption behavior of sulfated fatty acid diethanolamine (SFADC) as complex surfactant on carbon steel in CO2-saturated 1% NaCl solutions was investigated using LPR corrosion rate. Inhibitor...