Abstract
The paper is concerned with experimental results on the study of the main parameters of a new design of photovoltaic thermal (PV-T) batteries based on monocrystalline silicon photovoltaic (PV) batteries with a heat collector made of cellular polycarbonate of increased efficiency under extreme conditions (taking into account high temperature, level of pollution, and density of solar radiation incident on the PV battery surface as compared to standard testing conditions). It is shown that PV-T batteries are more efficient than PV batteries of standard design. The ratio of electric power generated for use in the photovoltaic thermal mode and in photovoltaic mode for all measurements (July, October, and December) is greater than one: 1.42 for July, 1.36 for October, and 1.26 for December, respectively, which means an increase in power efficiency by these values. The dependence of the efficiency of a PV-T battery on the density of solar radiation and the ambient temperature has been investigated. In the absence of clear weather, the PV-T battery works in the PV mode of standard design. In clear sunny weather at positive temperatures in the conditions of rural regions, photovoltaic thermal plants based on PV-T batteries provide reliable supply of electrical energy and hot water, which allows their application for household and economic needs of the population in extreme climatic conditions of rural regions of the country.
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ACKNOWLEDGMENTS
The authors express their gratitude for the recommendations on the design and for the support of this study to colleagues from the Physical–Technical institute of the Academy of Sciences of the Republic of Uzbekistan.
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Translated by M. Chubarova
The research was carried out at the Physical–Technical Institute SPA Physics–Sun, Academy of Sciences of the Republic of Uzbekistan, at the geographical latitudes of Tashkent for more than 7 years.
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Tursunov, M.N., Sabirov, X., Xolov, U.R. et al. Investigation of the Parameters of a Photovoltaic Thermal Battery in Extreme Natural Conditions. Appl. Sol. Energy 57, 272–277 (2021). https://doi.org/10.3103/S0003701X21040113
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DOI: https://doi.org/10.3103/S0003701X21040113