Abstract

It is necessary to estimate empirical constants in order to predict the monthly mean daily global radiation on a horizontal surface in the developing areas for alternative energy. Therefore many different equations have proposed to evaluate them for certain areas. In this work a new correlation has been made to predict the solar radiation for any areas over Korea by calculating the regression models taking into account latitude, percentage of possible sunshine, and cloud cover. Results clearly demonstrates the reliability of the single linear equation for the estimation of global radiation, which is proposed by using percentage of possible sunshine method. When compared with the measured values, the average annual deviation falls between -3.1 to +0.6%.

Keywords

• Meteorological Parameter;
• Horizontal Global Radiation;
• percentage of possible sunshine;
• cloud cover;
• Regression Model

• 기상매개변수;
• 수평면 전일사량;
• 일조율;
• 운량;
• 회귀모델;