Solar Radiation Estimation from the Measurement of Sunshine Hours over Southern Coastal Region, Bangladesh
International Journal of Sustainable and Green Energy
Volume 4, Issue 2, March 2015, Pages: 47-53
Received: Feb. 25, 2015; Accepted: Mar. 27, 2015; Published: Apr. 2, 2015
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Authors
Shuvankar Podder, Department of Electrical and Electronic Engineering, Bangladesh University ofEngineering and Technology, Dhaka, Bangladesh
Md. Minarul Islam, Department of Electrical and Electronic Engineering,Shahjalal University of Science and Technology, Sylhet, Bangladesh
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Abstract
In this study,the global solar radiation over the southern coastal region of Bangladesh is estimated from the duration of relative sunshine hours. Five models are considered to estimate the solar irradiance. These models are modified form of classical Angstrom – Prescott regression equation. A quadratic logarithmic model, relating the relative solar radiation and the relative sunshine hours is proposed for southern coastal region of Bangladesh. NASA Surface Meteorology and Solar Energy (SSE)have record of solar radiation data all over the world, measured from satellite. As Bangladesh Meteorological Department or any other organization has no record of measured solar radiation data for the considered locations, the estimated solar irradiance from the proposed regression model is compared with the data recorded by NASA SSE. Also t – statistics is applied to the estimated results to determine whether or not they are statistically significant at a particular confidence level.
Keywords
Solar Radiation, Sunshine Hours, Coastal Region, Nonlinear Relation, Hybrid
To cite this article
Shuvankar Podder, Md. Minarul Islam, Solar Radiation Estimation from the Measurement of Sunshine Hours over Southern Coastal Region, Bangladesh, International Journal of Sustainable and Green Energy. Vol. 4, No. 2, 2015, pp. 47-53. doi: 10.11648/j.ijrse.20150402.14
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