Analyzing of Global Solar Radiation Over Baghdad تحليل الاشعاع الشمسي الكلي لمدينة بغداد

Abstract

Solar radiation amounts were studied in Baghdad city at the Renewable Energy and Environment Research Center (REERC) to comply with the increasing demand for the renewable energy sources and the widely use of their applications. In this study, the analyzing of Global Solar Radiation (GSR) data measured on a horizontal surface was done. The data collected and presented in this work were based on hourly and daily values. Results found that the total of the monthly averages GSR reached to about (194MJ/m2), distributed on the months January to December and showed that the maximum radiation received in June to July and the minimum radiation in December and January. Calculations of clearness index values were found (0.43-0.57), indicates that most of the months exceed the rates of 50%, which refers to a clear and sunny weather.