Wang Ling, Jiao Xiuling, Chen Dairong, Wang Ting
National Engineering Research Center for Colloidal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China.
Adv Sci (Weinh). 2022 Feb;9(6):e2104121. doi: 10.1002/advs.202104121. Epub 2021 Dec 28.
Various smart windows with dynamic modulation of the light transmittance have been developed rapidly in recent years. However, current design of the smart windows can only modulate the indoor solar irradiation instead of effectively utilize them. Here, a solar water-heating (SWH) smart window is proposed by the integration of the traditional electrochromic window and the water flow system, which can not only provide dynamic daylight modulation but also harvest the solar energy and store them by heating water. In the SWH window, the reversible metal electrodeposition (RME) not only provides daylight modulation but also provides metal layer working as a flat-plate solar collector for energy harvesting. Compared with traditional electrochromic windows, the SWH window with a water flow system can more effectively modulate the indoor temperature, owing to the significantly enhanced tunability of the thermal irradiation from the window. Compared with water-flow windows, the RME provide a metallic layer for efficient light harvesting, up to 42% solar energy can be effectively harvested and stored as hot water. Such an SWH smart window is promising to reduce the heating, lighting, and air conditioning energy consumption, which may bring new insights in the design of the next-generation green buildings.
近年来，各种具有动态调节透光率功能的智能窗户得到了迅速发展。然而，目前智能窗户的设计只能调节室内的太阳辐射，而不能有效地利用这些辐射。在此，通过将传统的电致变色窗户与水流系统相结合，提出了一种太阳能热水（SWH）智能窗户，它不仅可以提供动态的日光调节，还能够收集太阳能并通过加热水来储存能量。在SWH窗户中，可逆金属电沉积（RME）不仅提供日光调节功能，还提供作为平板太阳能集热器用于能量收集的金属层。与传统的电致变色窗户相比，带有水流系统的SWH窗户能够更有效地调节室内温度，这是由于窗户的热辐射可调性显著增强。与水流窗户相比，RME提供了一个用于高效光收集的金属层，高达42%的太阳能可以有效地收集并储存为热水。这种SWH智能窗户有望降低供暖、照明和空调的能源消耗，这可能会为下一代绿色建筑的设计带来新的思路。
