Generation of Horizontal Global Irradiance using the Cloud Cover and Sunshine Duration According to the Solar Altitude

Kwan-Ho Lee; Levermore Geoff J.

doi:10.7836/kses.2020.40.2.037

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2020 Vol.40, Issue 2 Preview Page

Research Article

Generation of Horizontal Global Irradiance using the Cloud Cover and Sunshine Duration According to the Solar Altitude 일조시간 및 운량을 이용한 태양고도에 따른 수평면 전일사 산출

30 April 2020. pp. 37-48

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Abstract

This study compares cloud radiation model (CRM) and sunshine fraction radiation model (SFRM) according to the solar altitude using hourly sunshine duration (SD) and cloud cover (CC) data. Solar irradiance measurements are not easy for the expensive measuring equipment and precise measuring technology. The two models with the site fitting and South Korea coefficients have been analyzed for fourteen cities of South Korea during the period (1986-2015) and evaluated using the root mean square error (RMSE) and the mean bias error (MBE). From the comparison of the results, it is found that the SFRM with the site fitting coefficients could be the best method for fourteen locations. It may be concluded that the SFRM models of South Korea coefficients generated in this study may be used reasonably well for calculating the hourly horizontal global irradiance (HGI) at any other location of South Korea.

Keywords

Sunshine duration, SD

Cloud Cover, CC)

Horizontal Global Irradiance, HGI

Clearness Index

Solar altitude

키워드

일조시간

운량

수평면 전일사

청명지수

태양고도

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Information

Publisher :Korean Solar Energy Society
Publisher(Ko) :한국태양에너지학회
Journal Title :Journal of the Korean Solar Energy Society
Journal Title(Ko) :한국태양에너지학회 논문집
Volume : 40
No :2
Pages :37-48
Received Date : 2020-03-17
Revised Date : 2020-04-28
Accepted Date : 2020-04-29
DOI :https://doi.org/10.7836/kses.2020.40.2.037

Journal of the Korean Solar Energy Society ISSN:1598-6411(Print) 2508-3562(Online) 한국태양에너지학회 논문집

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