Abstract CdTe PV cell is one perfect candidate for window application because of its good daylighting performance, low-temperature coefficient and excellent electrical performance under weak light. In addition, thermal catalytic oxidation is an thermal driven air purification technology and the thermal energy can be easily obtained from PV window systems. Therefore, a novel thermal-catalytic CdTe double-layer breathing window was proposed. Firstly, the electrical, thermal and daylighting performances of proposed window were investigated experimentally. Secondly, the removal of formaldehyde was investigated using the verified coupled formaldehyde mass transfer and thermal-catalytic reaction kinetic model. Finally, the evolution of indoor formaldehyde concentration considering formaldehyde release source was calculated. Main results were: (1) The thermal and electrical efficiencies were respectively 0.297 and 0.0715, which were closed to the reported results. Also, the proposed window had better daylighting uniformity compared with conventional window. (2) The total generated clean air was 25.7 m3/(m2•day), with the equivalent formaldehyde degradation efficiency of 0.010 based on purification performances of various air purifiers in market. (3) The comprehensive thermal efficiency was 0.518, with increase of 9.28% considering the contribution from formaldehyde removal. (4) The proposed window could make the indoor concentration approach to standard concentration under most working conditions.

中文翻译：

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新型热催化CdTe双层呼吸窗在冬季的热、电和净化性能

摘要 CdTe光伏电池具有良好的采光性能、较低的温度系数和弱光下优异的电性能，是窗户应用的理想选择。此外，热催化氧化是一种热驱动的空气净化技术，可以很容易地从光伏窗户系统中获取热能。因此，提出了一种新型的热催化 CdTe 双层呼吸窗。首先，通过实验研究了所提出的窗户的电、热和采光性能。其次，使用经过验证的甲醛传质和热催化反应动力学模型研究了甲醛的去除。最后，计算了考虑甲醛释放源的室内甲醛浓度的演变。主要结果是：(1) 热效率和电效率分别为 0.297 和 0.0715，与报告结果接近。此外，与传统窗户相比，提议的窗户具有更好的采光均匀性。(2) 总产生清洁空气量为25.7 m3/(m2•day)，根据市场上各种空气净化器的净化性能，等效甲醛降解效率为0.010。(3)综合热效率为0.518，考虑除甲醛贡献，提高9.28%。(4) 建议的窗口可以使室内浓度在大多数工作条件下接近标准浓度。与传统窗户相比，提议的窗户具有更好的采光均匀性。(2) 总产生清洁空气量为25.7 m3/(m2•day)，根据市场上各种空气净化器的净化性能，等效甲醛降解效率为0.010。(3)综合热效率为0.518，考虑除甲醛贡献，提高9.28%。(4) 建议的窗口可以使室内浓度在大多数工作条件下接近标准浓度。与传统窗户相比，提议的窗户具有更好的采光均匀性。(2) 总产生清洁空气量为25.7 m3/(m2•day)，根据市场上各种空气净化器的净化性能，等效甲醛降解效率为0.010。(3)综合热效率为0.518，考虑除甲醛贡献，提高9.28%。(4) 建议的窗口可以使室内浓度在大多数工作条件下接近标准浓度。28% 考虑到去除甲醛的贡献。(4) 建议的窗口可以使室内浓度在大多数工作条件下接近标准浓度。28% 考虑到去除甲醛的贡献。(4) 建议的窗口可以使室内浓度在大多数工作条件下接近标准浓度。