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http://dx.doi.org/10.7836/kses.2012.32.3.077

A Study on the Estimating Direct Normal Insolation Using Horizontal Global Insolation for Solar Thermal Generation System Installation in Korea  

Jo, Dok-Ki (Korea Institute of Energy Research)
Yun, Chang-Yeol (Korea Institute of Energy Research)
Kim, Kwang-Deuk (Korea Institute of Energy Research)
Kang, Young-Heack (Korea Institute of Energy Research)
Publication Information
Journal of the Korean Solar Energy Society / v.32, no.3, 2012 , pp. 77-87 More about this Journal
Abstract
Images taken by geostationary satellite may be used to estimate solar irradiance fluxes at earth's surface. It is based on the empirical correlation between a satellite derived cloud index and the irradiance at the ground. For the validation, estimated direct normal Insolation is compared with observed direct normal Insolation at 16 sites over the Korean peninsular from January 1982 to December 2010. Estimated direct normal Insolation shows reliable results with average deviation of -5.4 to +5.9% from the measured values and the yearly averaged direct normal Insolation of Korean peninsula was turned out to be 2.93 $kW/m^2/day$.
Keywords
Solar Thermal Generation; Horizontal Global Insolation; Direct Normal Insolation;
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