ELECTRICAL MODEL OF THE HYBRID PHOTOVOLTAIC THERMAL COLLECTOR

• Дата: 2025
• Автор: Bondarenko , D.
• Формат: Стаття
• Мова: English
• Опубліковано: Institute of Renewable Energy National Academy of Sciences of Ukraine 2025
• Теми: photovoltaic thermal collector; PV/T-collector; electrical model; electrical-thermal analogy; photons; phonons
• Онлайн доступ: https://ve.org.ua/index.php/journal/article/view/505
• Назва журналу: Vidnovluvana energetika

The article is devoted to the creation of electrical models of a hybrid photovoltaic thermal. The objective of the article is to create electrical models of the thermal and photovoltaic parts of the hybrid collector. The paper focuses on the spectrum of solar radiation and shows that absorption occurs both in the photovoltaic part and in the thermal part of the hybrid collector. The advantages of combining thermal and photovoltaic parts in one en-ergy-generating device are shown. The construction of a photovoltaic thermal solar collector is shown. A table of electrothermal analogies, both for thermal conductivity and thermal convection, is demonstrated. An approach is presented in which thermal processes of photon absorption are modeled by the creation of phonons. The funda-mental aspects of the choice of modeling values, for example, the flow of entropy instead of the flow of thermal energy, are shown. It is shown that, within the framework of the electrothermal analogy, the calculation of ther-mal processes is reduced to the calculation of electric circuits. Electrical models are created and electrical equa-tions of the created electrical models are recorded. Controlled sources of current and voltage, and derived model-ing resistances in equivalent circuits are shown. A general model of a hybrid photovoltaic thermal collector is constructed, which is placed on a tracker and connected to a pump that pumps the coolant through the thermal part of the collector. This model includes a part that, based on rate equations, shows the separation of photons according to the spectral absorption distribution. Conclusions are drawn, and further research in the direction of connecting storage devices and connecting energy converters using different principles and designs is shown. It was also noted that the use of electrical models is a way to combine generation systems running on various energy sources.