JP Journal of Heat and Mass Transfer
Special Issue II, Advances in Mechanical System and ICT-Convergence, Pages 51 - 60
(December 2020) http://dx.doi.org/10.17654/HMSIII20051 |
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PREDICTION OF SOLAR FLUX USING METEOROLOGICAL PARAMETERS AT WESTERN PART OF TERAI, NEPAL
Bed Raj KC, Surendra Shrestha and Yeonwoo Lee
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Abstract: In absence of reliable data of global solar radiation, it is difficult to promote the solar energy technology. There is no efficient instrument to measure the solar radiation data because of high cost of instruments and lack of technical expertise. Therefore, it is necessary to use empirical models to estimate the total solar radiation. The global solar radiation is measured at the horizontal surface by calibrated pyranometer. In this paper, daily global solar radiation, sunshine hours and temperature data for Nepalgunj (Latitude 28.05°N, Longitude 81.62°E and Altitude 150m) have been used to derive the regression constants. The model regression coefficients a and b obtained in this study are 0.41 and 0.32, respectively. The Global Solar Radiation has been calculated at this site with the help of this model. The estimated value of Global Solar Radiation using this model is very close with measured values of the same location. The performance parameters of the model are: and It is concluded that the empirical constants can be utilized to estimate the total solar radiation at similar meteorological and geographical locations in the country. |
Keywords and phrases: solar flux, energy crisis, meteorological parameters, seasonal variation, regression technique empirical constant, statistical analysis.
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