...Lurwan Mahmoud Sabo; Norman Mariun; Hashim Hizam; Mohd Amran Mohd Radzi; Azmi Zakaria Purpose The purpose of this study is to evaluate the reliability of the technique for estimating solar radiation in areas of rough topography and to detect the source of error and means for improvement. Design...

...Abdelouahab Zaatri; Norelhouda Azzizi Purpose Using modeling approaches, this paper aims to propose different mathematical models for estimating the different components of the solar radiation as well as the received solar energy by a collector. Design/methodology/approach In this article...