Modeling the Thermal Behavior of a Photoelectric-Thermal Device

Yuldoshov, Boysori; Narbayev, Azamat; Buzrukov, Tulkin; Khaliyarov, Jasur; Berdiyev, Ural; Raupova, Sirojiddin

doi:10.25673/123160

Proceedings of International Conference on Applied Innovation in IT · 2025/12/22 · Vol. 13 · Issue 5 · pp. 1197–1203

Modeling the Thermal Behavior of a Photoelectric-Thermal Device

Boysori Yuldoshov, Azamat Narbayev, Tulkin Buzrukov, Jasur Khaliyarov, Ural Berdiyev, Sirojiddin Toshpulatov and Sojida Raupova

📄 Download PDF DOI: 10.25673/123160

Abstract

This paper presents a numerical study of the thermal behavior of a photovoltaic-thermal (PVT) device using COMSOL Multiphysics. The research focuses on analyzing temperature distribution on the photovoltaic (PV) surface under varying solar radiation levels and coolant flow rates. A coupled model integrating laminar fluid flow and heat transfer in solids and fluids was developed to simulate the interaction between thermal and hydrodynamic processes within the system. Simulations were conducted for solar radiation intensities of 500, 700, 1000, and 1500 W/m², with corresponding water mass flow rates ranging from 0.0083 to 0.033 kg/s. The inlet water temperature was fixed at 15°C. The results demonstrate that increasing the coolant flow rate significantly reduces the PV surface temperature, thereby improving electrical efficiency, while higher solar radiation enhances thermal energy output. The study confirms that the integration of a heat collector and reflectors improves both thermal and electrical performance of the PVT system. A balance between radiation intensity and cooling conditions is essential to maintain PV operating temperatures within optimal limits. The modeling results are consistent with experimental observations, validating the effectiveness of the proposed approach for optimizing PVT system design.

Keywords

Photovoltaic Panel Photothermal Device Heat Collector Solar Radiation Temperature.

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