This study aims to evaluate and optimize the thermoelectric performance of semi-transparent crystalline silicon photovoltaic (PV) curtain walls. An integrated thermoelectric performance coupling calculation model was developed, combining heat transfer and electricity generation calculations as a novel approach. Simulations and experiments were conducted to compare the performance of PV curtain walls with conventional curtain walls under various weather conditions, and were validated by experimental data. The results demonstrate that PV curtain walls enhance the thermal environment inside buildings and promote efficient power generation, with the arrangement of PV cells notably affecting performance. Under sunny conditions, the temperatures of the PV cell backplate and glass part backsheet in semi-transparent PV curtain walls exceeded those in ordinary glass curtain walls, yet the indoor air temperature was lower. Furthermore, when the working temperature of PV cells reaches to a certain level, it slightly deviates the electricity generation trend from the real-time solar radiation trend. Under cloudy conditions, the backsheet temperatures of semi-transparent PV curtain walls and standard glass curtain walls align with outdoor temperatures. Different PV module forms demonstrated that striped and square PV module forms offer better lighting effects than whole forms. The working temperatures among the three were close, with an annual average temperature difference of less than 1 °C and a peak temperature difference of approximately 3 °C, impacting the monthly total power generation by less than 1 %. This study presents a more precise and thorough approach for evaluating semi-transparent PV curtain walls' performance, providing insights for future sustainable architectural design.

中文翻译：

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半透明晶硅光伏幕墙热电性能实验与模拟研究


本研究旨在评估和优化半透明晶体硅光伏（PV）幕墙的热电性能。开发了一种集成热电性能耦合计算模型，将传热和发电计算结合起来作为一种新颖的方法。通过模拟和实验比较了光伏幕墙与传统幕墙在各种天气条件下的性能，并通过实验数据进行了验证。结果表明，光伏幕墙改善了建筑物内部的热环境，促进了高效发电，其中光伏电池的布置对性能影响显着。在晴朗条件下，半透明光伏幕墙的光伏电池背板和玻璃部分背板的温度超过普通玻璃幕墙，但室内空气温度较低。此外，当光伏电池的工作温度达到一定水平时，发电趋势与实时太阳辐射趋势略有偏差。阴天条件下，半透明光伏幕墙和标准玻璃幕墙的背板温度与室外温度一致。不同的光伏组件形式表明，条形和方形光伏组件形式比整体形式具有更好的照明效果。三者工作温度接近，年平均温差小于1℃，峰值温差约3℃，对月总发电量影响小于1%。 这项研究提出了一种更精确、更彻底的方法来评估半透明光伏幕墙的性能，为未来的可持续建筑设计提供见解。