The application of renewable energy in the building sector has received increasing attention. In this work, a zero-energy photocatalytic double-layer ventilation window was proposed to reduce building energy consumption and improve indoor air quality. The effects of environmental and operational parameters on the system’s performance were investigated through experimental testing and simulation analysis. The results show that the thermal efficiency of the system increases with the rise in solar irradiation, while the degradation rate initially increases and then decreases. The performance of the system is significantly affected by the inlet air speed and temperature. When the photocatalyst is coated on both sides of the window compared to one side under solar irradiation of 600 W/m2, the thermal efficiency and degradation rate of the system increase by 29 % and 74 %, respectively. This study demonstrates the potential of photocatalytic double-layer ventilation windows in energy-efficient buildings and provides an important reference for sustainable building design.

中文翻译：

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新型光催化双层通风窗的性能分析


可再生能源在建筑领域的应用越来越受到关注。在这项工作中，提出了一种零能耗光催化双层通风窗，以降低建筑能耗并改善室内空气质量。通过实验测试和模拟分析研究了环境和运行参数对系统性能的影响。结果表明，该系统的热效率随着太阳辐照的增加而增加，而衰减速率则先增加后降低。系统的性能受进气速度和温度的显著影响。当光催化剂涂布在窗户的两侧时，在600 W/m2的太阳照射下，与一侧相比，系统的热效率和降解率分别提高了29 %和74 %。本研究展示了光催化双层通风窗在节能建筑中的潜力，为可持续建筑设计提供了重要参考。