Researchers in Türkiye have conducted an experimental study into the ideal tilting angles for PV systems that are deployed on canals. Their analysis showed that an 8Z Kantelhoek has consistently exhibited larger performance.
Scientists from Van Yuzuncu Yil University in Türkiye have conducted an experimental study into channel mounted PV (CM -PV) systems to measure the ideal tilting angles for implementation.
“CM-PV panel systems have various advantages. Thanks to evaporation cooling, panel efficiency increases with the fall in panel temperature and no external energy source is needed for this cooling process,” the research team said. “It also prevents the occupation of land that can be used for different purposes, such as agriculture and construction. The shade created by the panels on the water surface protects the water quality by reducing the formation of the algae in the canal and contributes to water savings by preventing evaporation.”
To test the CM-PV system performance, the team constructed two channel structures in the form of half a cylinder with dimensions of 200 cm x 100 cm x 50 cm. To simulate the water flow in each channel, two pumps with a capacity of 35 l/min were used. Polycrystalline PV panels with an output of 250 W were placed on these structures at corners of 8 °, 23 ° and 38 °.
The tests were performed on the campus of Van Yuzuncu Yil University. The first information was taken at 7:45 am and then data was obtained and recorded every 20 minutes from 8:00 am. The last details of the day were taken at 6 p.m.
“The panels placed on the canal and on the ground were placed with the same tilt corner: 8 ° tilt corner in the first experiment, 23 ° tilt corner in the second experiment, and 38 ° tilt corner in the third experiment. Each experiment was performed for one day. This group of experiments was performed on 23-25 July 2024, the Academics.
Their analysis showed that, at an 8 ° tilt corner, CM-PV panels of surface temperatures up to 6.33 ° C shown lower than those of panels mounted on the ground, with an average difference of 4.2 C. In the case of 23 °, the maximum difference was 5.1 C and the average difference was 3.3 C, while in the case of Triple °, it was respective, which is the Triple ° of the Live ° of the Live, Live.
CM-PV panels also proved to be consistently better surpassed than counterphagers mounted in terms of energy efficiency, with maximum efficiency improvements of 1.86% at 8 °, 1.05% at 23 ° and 1.3% at 38 ° tilting angles.
“CM-PV systems considerably reduced the evaporation of the water. For example, with a hollow of 8 °, 6 l of water evaporated, while 10 l evaporated in a non-skilled channel. This pattern continued to exist over different tilting degrees, to illustrate the effectiveness of panel-induced shadow,” concluded the group. “In comparisons of different tilting corners in CM-PV systems, the 8 ° tilting was consistently showed. It resulted in reduced surface temperatures, less evaporation and improved efficiency compared to both the 23 ° and the 38 ° setups. Efficiency variations for a maximum of 1.7 of the preference of 1,,s of the of 1.s of from 1.,,,s of the of 1.s of € of from of € of from € of from € from. reduced tilt. “
Their findings were presented in “An experimental performance analysis of channel mounted photovoltaic systems with regard to energy production and water retention“Published in Solar energy.
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