Authors

Increasing energy efficiency of flexible solar panels by intensification of their cooling in the modified design of solar wind generator blades

DOI: 10.17586/1606-4313-2024-23-3-25-34
UDC 621.311

Increasing energy efficiency of flexible solar panels by intensification of their cooling in the modified design of solar wind generator blades

Zarichnyak Yury P. , Lukin Vladimir A., Alekseev Evgenii V.

For citation: Zarichnyak Y.P., Lukin V.A., Alekseev E.V. Increasing energy efficiency of flexible solar panels by intensification of their cooling in the modified design of solar wind generator blades. Journal of International Academy of Refrigeration. 2024. No 3. p. 25-34. DOI: 10.17586/1606-4313-2024-23-3-25-34

Abstract
The article discusses a solar wind generator designed to generate electricity in two ways simultaneously: using wind and solar energy. Flexible solar panels installed on the blades of a solar wind generator are cooled by incoming air flows as the blades rotate, but this is not enough to achieve the optimal temperature of the photoelectric converter. For additional cooling, the design of the solar wind generator blade has been modified: the blade is made hollow inside and holes of a certain shape and size are made at its two ends on different sides. Due to the pressure difference before and after the wind wheel, the air flow is sucked through the inlet hole into the blade, passes through its cavity and is thrown out through the outlet hole. Consequently, solar panels are cooled from the outside due to the rotation of the blades and from the inside due to the passage of air flow through the internal cavity of the blade. The air flow velocity inside the blade reaches a maximum value of 2 m/s, while the temperature of the solar panels reaches an average value of 37 °C, which leads to an increase in the efficiency of solar panels to 21%. The subject of the study is the parameters affecting the energy efficiency of flexible solar panels installed on the blades of a solar wind generator. The paper presents a method for intensifying the cooling of flexible photovoltaic converters by modifying the design of a solar wind generator blade, the results of a study of modeling various modifications of blade designs and determines a design that corresponds to the highest air flow speed inside the blade. Thermal calculations were also carried out and the hydrodynamic properties of the air flow were studied.

Keywords: solar wind generator, flexible solar panels, cooling intensification, air flow speed, blade.

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