Abstract
The paper presents ways to use advanced infrared imaging techniques to study and analyze the thermal losses of a flat plate solar collector. The techniques allowed us to precisely locate and measure areas where unwanted thermal losses occurred on the surface of the collectors studied. The study showed that these losses have a key impact on the energy efficiency of these devices. It was found that using the proposed methodology allows not only the detection of defects in existing structures but also the optimization of the design process of new technical solutions. The temperature of the working medium has a significant effect on heat losses on all analyzed surfaces. However, the influence of the medium flow varies depending on the specific surface. The conclusions of the research suggest that infrared imaging is a valuable tool in developing solar thermal systems, contributing to the reliability and efficiency of these systems. The technique is an important step toward sustainable and economical use of solar energy. Increasing the efficiency of the equipment used to carry out the photothermal conversion process will allow more efficient use of available renewable energy sources. It will have a positive impact on environmental protection.
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