Abstract

The parameters of a combined photo-thermoelectric installation based on modern solar cells (SCs) made of polycrystalline silicon and thermoelectric batteries (TBs) based on bismuth telluride with improved thermal contacts were experimentally investigated. The heating and cooling of the photovoltaic section of the installation were studied. Analysis of the photographs of infrared radiation obtained during the heating indicates that all surfaces are nonuniform in terms of the temperature. The white spots partially observable in the central parts of photovoltaic batteries (PVBs) suggest a high temperature, i.e., the process of “overheating”. After cooling the cold junction of the thermoelectric battery with water below room temperature, a significant change in the temperature gradient of the PVB and partial restoration of the basic parameters of the PVB were observed. The inhomogeneity of the temperature gradient over the PVB surface is apparently caused by uneven removal of heat from the front surface to the back of the battery. Based on the obtained experimental data, comparative graphs of the parameters of the combined photo-thermoelectric installation with and without a reflector were constructed.

中文翻译：

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现场条件下组合式光电热电装置的参数研究

摘要

实验研究了基于现代太阳能电池（SC）的组合式光热电装置的参数，该太阳能电池由多晶硅制成，而热电电池（TB）基于碲化铋并具有改进的热接触。研究了设备的光伏部分的加热和冷却。对加热期间获得的红外辐射的照片的分析表明，所有表面的温度均不均匀。在光伏电池（PVB）中央部分可观察到的白点表明温度较高，即“过热”过程。用低于室温的水冷却热电电池的冷端后，观察到PVB的温度梯度发生了显着变化，并且PVB的基本参数部分恢复。PVB表面上温度梯度的不均匀性显然是由于从电池前表面到电池后表面的热量散发不均匀引起的。根据获得的实验数据，构建了带有和不带有反射器的组合式光热电装置的参数比较图。