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Use of Infrared Imaging Techniques to Investigate Thermal Losses of Flat Plate Solar Collectors

Znaczko Paweł

Rocznik Ochrona Środowiska

2023

Tom 25

342--356

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.

Thermal dynamics of a building

Matysko R., Dyczkowska M.

Transactions of the Institute of Fluid-Flow Machinery

2018

nr 141

31--40

The work presents the thermal dynamics of the building. The mathematical model covers the issues of heat exchange and temperature control in the room due to changing environmental conditions. The presented work describes the operation of the control system due to thermal losses and thermal inertia of the building. Mathematical model introduces a new method of thermal loss analysis in the conditions of variable thermal dynamics of the building.