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Analysis of Data and Calculation of Global Solar Radiation based on Cloud Data for Major Cities in Korea  

Yoo, Ho-Chun (School of Architecture, University of Ulsan)
Lee, Kwan-Ho (School of Space design, Ulsan College)
Park, So-Hee (School of Architecture, Graduate School, University of Ulsan)
Publication Information
Journal of the Korean Solar Energy Society / v.28, no.4, 2008 , pp. 17-24 More about this Journal
Abstract
Estimation of typical solar radiation is very important for the calculations concerning many solar applications. But solar radiation measurements are not easily available because of the expensive measuring equipment and techniques required. Accordingly, for regions where no solar radiation is measured, solar radiation need to be estimated using other meteorological data. However, currently in Korea, there is no study on how to do this. In this paper, the global radiation of the six major cities in South Korea where the global radiation is measured using comparatively simple CRM model was calculated compared and analyzed. The comparison between the original coefficient and the site-fitted coefficient for these cities are as follows. Differences between the site-fitted coefficient and the original coefficient for six cities are small. Except for Gwangju, both calculations show strong correlation. In case of Seoul, the $R^2$(coefficient of determination) were 0.747 and 0.749. In case of Busan and Daegu the figures were 0.817, 0.819 and 0.820, 0.821 respectively. For Gwangju, these were 0.618 and 0.622, Thus, the site-fitted coefficients were slightly higher for these four cities. On the other hand, Daejeon and Incheon was reported 0.773, 0.772 and 0.785, 0.783, respectively.
Keywords
Global solar horizontal irradiation; Solar altitude; Cloud amount; CRM(Cloud Radiation Model);
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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