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Approach for the modelling of hybrid photovoltaic–thermal solar collector

机译：光伏-热混合太阳能集热器建模方法

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摘要

In this paper, a theoretical and experimental study of a photovoltaic thermal (PV/T) hybrid solar collector is presented. The studied system is constituted by a sheet and tube placed below the surface on which the solar cells are assembled to extract heat from the photovoltaic module. The mathematical model is based on the equations of the energy balances written for the various nodes of the system, and the coupled differential equations obtained are solved by using the finite differences method. The temperatures of the various layers of solar PV/T collector and the coolant temperature are predicted. With the hybrid solar collector presented in this article, the temperature at the maximum photovoltaic cell is reached 53 °C; we see that the integration of the heat exchanger at the photovoltaic collector reduces the temperature of the PV cell that which increases its efficiency, in the other hand, the gain of these calories is used for heating the fluid. We obtained an overall efficiency which is the sum of the electrical efficiency and thermal efficiency for irradiation conditions chosen equal to 64%. The results of experimental study were compared with theoretical data and the model was validated.
机译：本文提出了一种光伏热（PV / T）混合太阳能集热器的理论和实验研究。所研究的系统由放置在太阳能电池组装表面下方的薄板和管子构成，以从光伏模块中提取热量。该数学模型基于为系统各个节点编写的能量平衡方程，并使用有限差分法求解获得的耦合微分方程。预测了太阳能PV / T收集器各层的温度和冷却液温度。使用本文介绍的混合太阳能集热器，最大光伏电池的温度达到53°C；我们看到热交换器在光伏集热器处的集成降低了PV电池的温度，从而提高了效率，另一方面，这些热量的获取用于加热流体。我们获得了总效率，该总效率是所选辐照条件下的电效率和热效率之和等于64％。将实验研究结果与理论数据进行比较，验证了模型的正确性。

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