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Verification of a Mathematical Model for a Photovoltaic Thermal-Thermoelectric Generator Unit Using Concentrated Solar Radiation

  • SOLAR INSTALLATIONS AND THEIR APPLICATION
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Abstract

In this study the results of the analysis of the dependence of the temperature of solar cells (SCs) and thermoelectric generators (TEGs) and the overall electrical and thermal efficiency of the PVT–TEG combined system on thermal characteristics and environment are presented. The hot side of a TEG module is attached to the back side of the photovoltaic module (PVM). The heat carrier circulating through the absorber cools down the cold side of the TEG module, where the temperature gradient is converted into additional electrical energy. The mathematical model for a PVT–TEG combined setup was realized in the MathCAD program. The agreement between numerical calculations and experimental data was analyzed using the “goodness of fit.” Experimental measurements were carried out at the Heliopolygon at Tashkent State Technical University. The solar radiation flux density, ambient temperature, wind speed, open circuit voltage, short-circuit current, temperatures of the PVM, the thermo-electromotive force, and the current of TEG were measured without and with reflectors oriented to the south at a horizontal angle of 25°. However, in order to verify the model, the calculated and experimental data of the output power of the combined PVT–TEG setup were compared. It was revealed that the root-mean-square deviation (RMSD) of the peak power of the experimental and calculated data was 1.74 W, or 4.8%.

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ACKNOWLEDGMENTS

The authors are grateful to Academy of Sciences of the Republic of Uzbekistan academician R.A. Muminov, Dr. Sc. M.N. Tursunov, and Dr. V.G. Dyskin for discussion of the results.

Funding

The study was carried out with the financial support of the Ministry of Innovation Development of the Republic of Uzbekistan as part of project F-ОТ-2021-497 Development of Scientific Foundations for the Creation of Solar Cogeneration Plants based on Photovoltaic Thermal Batteries.

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Authors and Affiliations

  1. Physical–Technical Institute SPA Physics–Sun, Academy of Sciences of the Republich of Uzbekistan, 100084, Tashkent, Uzbekistan

    S. K. Shoguchkarov & A. S. Halimov

  2. Tashkent State Technical University, 100095, Tashkent, Uzbekistan

    S. K. Shoguchkarov, I. A. Yuldoshev & T. R. Jamolov

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  1. S. K. Shoguchkarov
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  2. A. S. Halimov
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  3. I. A. Yuldoshev
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  4. T. R. Jamolov
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Correspondence to I. A. Yuldoshev.

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Translated by A. Muravev

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Shoguchkarov, S.K., Halimov, A.S., Yuldoshev, I.A. et al. Verification of a Mathematical Model for a Photovoltaic Thermal-Thermoelectric Generator Unit Using Concentrated Solar Radiation. Appl. Sol. Energy 57, 384–390 (2021). https://doi.org/10.3103/S0003701X21050121

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