Английский
Тоҷикӣ 
Русский 
2022
STUDY OF THERMAL PROCESSES IN A SOLAR PHOTOELECTRIC MODULE
Файл Ном Сабт карда шуд 
Mirzokobilova Firuza OsimovnaSTUDY OF THERMAL PROCESSES IN A SOLAR PHOTOELECTRIC MODULE 33
Authors: Mirzokobilova Firuza Osimovna - Teacher of the Department General Physics and Solid State under SEI «Khujand State University named after academician B.G.Gafurov» (Tajikistan Republic, Khujand)
JOURNAL NUMBER: 2(61). YEAR OF ISSUE: 2022. LANGUAGE OF THE ARTICLE: Russian
ANNOTATION
In this paper, the extreme and average monthly values of the temperature of the photovoltaic module and the air temperature of the area (Khujand) are determined. The dynamics of useful electrical and thermal energy of a solar photovoltaic thermal installation has been studied. The daily and seasonal dynamics of the accumulated thermal energy in the material of the photovoltaic module is studied, taking into account the stochastic nature of solar radiation and the local climate. It has been established that the average annual value <Тmax–Тaverage> of the photovoltaic module is 20°С. In winter months, the <Тmax–Тaverage> value decreases to 15°С. The accumulated energy ΔWac of a solar photovoltaic thermal installation at noon reaches 50 Wh/m2 or 1.5% of the specific daily amount of solar radiation. The daily amount of solar radiation is about 3.5 kWh/m2 for October. It has been established that the accumulated thermal energy in the substrate material has a low correlation coefficient (0.18) with the electrical power of the solar photovoltaic thermal installation. The decrease in electricity generation due to the increase in the temperature of the module within 1...2% is compensated by the generation of thermal energy of the hybrid solar installation. The daily useful thermal energy of solar photovoltaic thermal installation is 2 kW/m2 with a thermal efficiency of 50%. The daily electricity generation of solar photovoltaic thermal installation is 280 Wh/m2 with an electrical efficiency of about 8%. The overall electrical and thermal efficiency of solar photovoltaic thermal installation is 58%.
KEY WORDS
photovoltaic module, heat flow, efficiency, electrical energy, thermal energy, information system, accumulated energy.