INVESTIGATION OF THE THERMAL EFFICIENCY OF A HYBRID THERMAL-PHOTOVOLTAIC SOLAR COLLECTOR
DOI:
https://doi.org/10.35546/kntu2078-4481.2025.1.1.37Keywords:
hybrid thermal photovoltaic solar collector; hybrid power supply system, thermal efficiency, electrical efficiency, solar radiation, energy supplyAbstract
The article investigates the efficiency of using a hybrid thermal photovoltaic solar collector (HTPSC) in a heating system. The main objective of the study is to analyze the key parameters that determine the thermal efficiency of the hybrid solar collector, as well as to examine its design for enhancing thermal performance. The study discusses the main challenges associated with the use of traditional energy sources and the necessity of transitioning to renewable energy in accordance with European environmental initiatives. It is determined that modern photovoltaic panels convert only 15–20 % of the absorbed solar energy into electricity, while the rest is lost as heat. This necessitates the development of innovative solutions to improve the overall efficiency of energy supply systems, particularly by enhancing hybrid solar collectors. A series of experiments were conducted to analyze the impact of key factors–solar radiation intensity, collector tilt angle, and heat transfer fluid mass flow rate – on the thermal and electrical efficiency of the HTPSC. The results confirm that as radiation intensity increases, the thermal efficiency of the solar collector decreases. It was found that the use of solar radiation concentrators and effective thermal insulation helps to reduce heat losses and improve the system’s overall efficiency. Based on the research findings, structural solutions for hybrid collectors are proposed to enhance solar energy conversion efficiency and ensure more stable energy supply. The implementation of such technologies will contribute to reducing dependence on fossil fuels, lowering greenhouse gas emissions, and achieving sustainable development goals.
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