Abstract
Energy based on renewable energy sources continues to meet the increasing need of growing population. In renewable energy production, not only energy production but also efficient using is crucial. In recent years, photovoltaic panels, which are increasingly used and highly important, have warmed on the surface due to the radiation energy emitted by the sun, and this warmth reduces the efficiency of the panel. In this study, it is aimed to reduce this efficiency loss by using phase changing material with latent heat which is one of the thermal energy storage methods. One of the two solar panels placed parallel to the ground was filled with phase changing material. With this, it is aimed to cool photovoltaic panel by using calcium chloride hexahydrate phase changing material; and radiations air temperature, current, voltage, power, surface temperature, efficiency graphs were obtained. As a result of simultaneous measurements, the increase in yield was 2.95%.
Highlights
INTENSITY OF solar radiation, surface cleaning & temperature, and angle of inclination of the photovoltaic (PV) cell are the specific physical parameters that affect the efficiency of PV panel.Electricity is produced by PV panels which only convert 525% of solar irradiance into energy [1], and the remaining radiation is transformed into heat energy [2] which increases PV panel temperature [3]
As a solution to this issue, energy production, which consists of renewable energy sources, known as eco-friendly, is increasing rapidly
Energy production provides a solution for the growing energy demand as a consequence of population growth, and using the same energy source with more efficient way is necessary
Summary
INTENSITY OF solar radiation, surface cleaning & temperature, and angle of inclination of the photovoltaic (PV) cell are the specific physical parameters that affect the efficiency of PV panel. As a result of this study, they concluded that in Ljubljana, the photovoltaic cell, in which phase changing material was used, produced 7.3% more energy in a year [11] In the study they carried out, Sarhaddi et al (2017) investigated the heat storage performance of 2 weir type cascade connected solar power systems with phase-changing substances on sunny and semi-sunny days and without phasechanging substances; and they performed energy and exergy analyses. Fayaz et al (2019) made numerical analyses and compared them experimentally with the help of three dimension COMSOL software in their study to improve heat transfer and performance in photovoltaic thermal systems They provided cooling with phase changing material with an input at 27 °C temperature with different flow rates and achieved maximum electrical efficiency 12.4% as numerical and 12.28% as experimental. PV panel efficiency was provided using phase changing substance optimizing the surface temperature of PV panel to decrease efficiency losss because of high temperatures on PV panel surface [19]
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