@Article{EE.2020.011024,
AUTHOR = {Ali Khosravi, Oscar Ricardo Sandoval Rodriguez, Behnam Talebjedi, Timo Laukkanen, Juan Jose Garcia Pabon, Mamdouh El Haj Assad},
TITLE = {New Correlations for Determination of Optimum Slope Angle of Solar Collectors},
JOURNAL = {Energy Engineering},
VOLUME = {117},
YEAR = {2020},
NUMBER = {5},
PAGES = {249--265},
URL = {http://www.techscience.com/energy/v117n5/40111},
ISSN = {1546-0118},
ABSTRACT = {The energy coming from solar radiation could be harvested and transformed into electricity through the use of solar-thermal power generation and
photovoltaic (PV) power generation. Placement of solar collectors (thermal and
photovoltaic) affects the amount of incoming radiation and the absorption rate.
In this research, new correlations for finding the monthly optimum slope angle
(OSA) on flat-plate collectors are proposed. Twelve equations are developed to
calculate the monthly OSA by the linear regression model, for the northern and
the southern hemisphere stations from 15° to 55° and –20° to –45°, respectively.
Also, a new equation for calculating the yearly tilt angle is developed and compared with several other calculation methods from the literature. Results confirm a
20% increase in solar energy absorption by adjusting the collectors’ tilt angle in
monthly time periods. This is while the adjusted collectors with the yearly optimum slope angle receive approximately 7% higher solar radiation compared to
the horizontal collectors. Furthermore, the proposed equations outperformed the
other calculation methods in the literature.},
DOI = {10.32604/EE.2020.011024}
}