相关实验视频
Updated: Jun 15, 2025

04:35
Preparation of Free-Surface Hyperbolic Water Vortices
Published on: July 28, 2023
2.5K
内部冷却的大气水采集使生产率提高
Yaohui Feng1, Lurong Ge1, Qian Li1
1Engineering Research Center of Solar Power & Refrigeration (MOE), Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai 200240, China.
Water research
|August 21, 2024
概括
使用吸附剂材料收集大气中的水通过内部冷却得到了改进. 这种新的干燥剂涂层吸附器设计提高了水的生产率和效率,用于实际生产水.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 环境科学 环境科学
背景情况:
- 大气水收获 (AWH) 对水资源短缺至关重要,但在实际产量扩展方面面临挑战.
- 包装 Sorbent 床遭受低效的热量和质量转移,限制了原型的性能.
研究的目的:
- 开发一个改进的AWH设备,使用带干燥剂涂层的吸收器与内部冷却.
- 提高AWH系统中的实际水生产率和能源效率.
主要方法:
- 用干燥剂涂层吸附剂制造的收集水设备.
- 整合内部流体,在吸附过程中进行主动冷却,在脱吸过程中进行加热.
- 在一系列相对湿度 (RH) 条件下测试系统的性能.
主要成果:
- 与传统方法相比,实际的水生产率增加了1.75-9.96倍.
- 实现了较低的脱吸温度 (45-62°C).
- 连续生产的水量在0.77-3.98 L水/kg吸附剂/天之间,能源消耗为7.7-30.4 MJ/kg.
结论:
- 用干燥剂涂层吸附器的内部冷却显著提高了AWH的性能.
- 开发的系统提供了一个可行的解决方案,用于在不同的气候下产生水.
- 自然冷却的整合为建筑业和更广泛的应用提供了机会.
相关概念视频
Adaptations that Reduce Water Loss
25.2K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.2K
The Water Cycle
24.3K
The Earth’s hydrosphere includes all of the areas where the storage and movement of water occurs. Since water is the basis of all living processes, the cycling of water is extremely important to ecosystem dynamics.
24.3K
Responses to Drought and Flooding
10.6K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.6K
Design Example: Managing Concrete Workability
76
This example deals with managing the workability of concrete for a raft foundation project under hot weather conditions. Workability is crucial for ensuring the concrete is easy to place, compact, and finish. In this scenario, a slump test — a common method to measure the workability of fresh concrete — initially indicated low workability. This was attributed to the rapid water loss from the concrete mix, exacerbated by the high temperatures causing the course aggregates to heat up.
76

