Hassanian, Reza; Riedel, Morris; Yeganeh, Nashmin; Unnthorsson, Runar
(MDPI AG, 2021-11-24)
In this study, recorded empirical data were applied with a practical approach to investigate the optimal tilt angle of the flat plate collectors facing south for a long period in Tehran, Iran. The data included 20 years of recorded average total radiation ...