基于连续吸附的大气取水的全球潜力。
Global potential of continuous sorption-based atmospheric water harvesting.
作者信息
Ying Wenjun, Li Chunfeng, Yang Liang, Hua Lingji, Zhang Hua, Wang Ruzhu, Wang Jiayun
机构信息
Institute of Refrigeration and Cryogenics, University of Shanghai for Science and Technology, Shanghai 200093, China.
Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
出版信息
iScience. 2025 Mar 5;28(4):112160. doi: 10.1016/j.isci.2025.112160. eCollection 2025 Apr 18.
Sorption-based atmospheric water harvesting (SAWH) offers a decentralized solution for freshwater generation in remote and arid regions. Continuous SAWH systems, with their compact design and energy efficiency, present advantages over discontinuous systems for kilogram-scale water supply. Using global meteorological data and advanced modeling, we evaluated the performance of passive and active continuous systems, incorporating the isothermal and dynamic properties of twelve advanced sorbents, such as hydrogels, metal-organic frameworks, and composites. Results show that solar-powered continuous SAWH systems can operate effectively year-round in 39.53% of global districts, while active systems enable low-energy harvesting in 55.27% of districts. Temperature and humidity significantly influence performance, with correlations of 47.41% and 86.41%, respectively, surpassing the impact of atmospheric pressure and solar radiation. This study provides a predictive framework for global SAWH performance, offering design insights to optimize system efficiency and guide sorbent development for broader applications.
基于吸附的大气取水（SAWH）为偏远干旱地区的淡水生产提供了一种分散式解决方案。连续SAWH系统设计紧凑且能源效率高，在千克级供水方面比非连续系统更具优势。利用全球气象数据和先进模型，我们评估了被动和主动连续系统的性能，纳入了十二种先进吸附剂（如水凝胶、金属有机框架和复合材料）的等温及动态特性。结果表明，太阳能驱动的连续SAWH系统能在全球39.53%的地区全年有效运行，而主动系统能在55.27%的地区实现低能耗取水。温度和湿度对性能有显著影响，相关性分别为47.41%和86.41%，超过了大气压力和太阳辐射的影响。本研究为全球SAWH性能提供了一个预测框架，为优化系统效率提供设计见解，并指导吸附剂开发以实现更广泛应用。
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