الفهرس 
CHAPTER (1) IntroductionOnly 14 pages are availabe for public view
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Abstract
Floating photovoltaic systems (FPV) are a new approach that combines conventional PV module with a floating unit. This combination permits increased efficiency of PV modules and better use of land resources, resulting in more effective fulfillment of energy demand. Due to its various benefits, the FPV system outperforms the land-mounted photovoltaic (LPV) system. The system has received a lot of attention. The FPV surface temperature might, however, in a dry coastal location, reach a degree that severely affects the performance and life duration of the panel. A modification has been proposed on the FPV system to further cool the PV module passively.
Experimental work has been conducted to investigate the performance of a novel partially submerged photovoltaic system (PSPV) as a new modification to discharge the undesirable thermal energy that raises the floating module temperature into the surrounding water. The developed system consists of a floating photovoltaic module that has a segment of the panel’s length submerged in the water. The experimental setup was assembled and examined under summer Egyptian conditions. The influences of the PSPV tilt angle and the submerged ratio (which is the ratio between the submerged length to the whole length of the PV module) on the PSPV system’s overall performance were examined to assess the benefits of the modified system. The examined tilt angles for the PSPV were 10º,15º, and 30º. The performance pattern with a minimum radiation deflection for detecting the optimal scenario was explored using three submerged ratios of 5,10, and 20%. A performance comparison between the PSPV system and LPV systems has been implemented.
The test recordings indicate that average operating surface temperatures of the PSPV module during the testing time were always lower than that of the LPV module by about 4.22℃, 6.01℃, and 6.24℃ for the tilt angles of 10º, 15º, and 30º respectively. The results also revealed that the highest power was obtained at a tilt angle of 15º with 18.22% more than LPV. It was deduced that the new PSPV produces the highest performance when deployed at an optimized condition of a tilt angle and depth of 15º and 10%. An economic assessment of the proposed system has revealed a 7.5% reduction in the LCOE from 0.076 to 0.066 ($/kWh) for the PSPV system by increasing the submerged ratio from 5% to 10%.