一个太阳能驱动的大气抽水器用于离网淡水生产和灌
Kaijie Yang1,2,3, Tingting Pan1, Nadia Farhat3
1Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia.
Nature communications
|July 24, 2024
概括
这项研究介绍了一种被动的太阳能驱动大气抽水系统,它不断地产生淡水. 优化了效率,它为分散的供水和离网灌提供了可持续的解决方案,即使在干旱地区.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 太阳能驱动大气提取水 (SAWE) 提供分散的淡水供应,但经常面临间歇性生产和复杂的运营要求的挑战.
- 现有的SAWE系统可能需要人工干预或设计限制广泛采用,特别是在偏远或干旱的地方.
研究的目的:
- 开发和演示一个完全被动的太阳能驱动的大气抽水系统,能够连续生产淡水.
- 优化系统架构,以有效利用太阳能和自发大规模运输.
- 评估系统在各种环境条件 (包括干旱地区) 中的性能,并评估其在灌等实际应用中的潜力.
主要方法:
- 设计和制造具有优化三维架构的SAWE系统,用于增强质量运输和能源转换.
- 在模拟和真实条件下的性能测试,包括变化的相对湿度 (RH) 水平 (90%至40%) 和太阳照明 (1-sun).
- 在不同季节的35天时间里,在沙特阿拉伯进行了扩大系统的长期实地测试,并使用提取的水进行了离网灌实验.
主要成果:
- 被动SAWE系统在90%的RH照明下在1太阳照明下始终产生0.65Lm−2h−1的淡水.
- 该系统在干旱环境中表现出功能,RH低至40%.
- 在沙特阿拉伯的实地测试中,在夏季产生2.0-3.0 L m-2天,在秋季产生1.0-2.8 L m-2天,没有维护. 用提取的水成功灌了白菜植物.
结论:
- 开发的被动SAWE系统提供了一种使用太阳能生产淡水的连续和高效方法.
- 它在各种湿度水平上的强大表现和在离网灌中的成功应用凸显了它作为水资源稀缺地区可持续解决方案的潜力.
- 这项技术解决了关键的能源,水和粮食安全挑战,特别是在偏远社区.
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