Humidity control plays an essential role in various settings, such as in residential buildings and greenhouses. However, conventional dehumidification technologies fail to achieve continuous dehumidification with low up-front costs and energy consumption. Here, we present a passive continuous moisture pump characterized by a three-dimensional structural design incorporating a salt-impregnated composite sorbent. The moisture pump can conduct the adsorption and desorption processes simultaneously by spatially separating the adsorption and desorption surfaces. With chemical potential differences, the captured water is transferred outside to achieve continuous dehumidification without an active driving mechanism. In a stable high-humidity environment, the pump operates with an average dehumidification rate of 256.20 g m h. For a scale-down greenhouse prototype, the moisture pump controlled indoor humidity in an appropriate range for horticultural crops during the day, which lasted an additional 5.5 h compared to a traditional passive dehumidification technology.

中文翻译：

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被动连续湿度泵通过同时吸水和解吸来调节湿度


湿度控制在各种环境中发挥着重要作用，例如住宅建筑和温室。然而，传统的除湿技术无法实现持续除湿、前期成本低、能耗低。在这里，我们提出了一种被动连续湿气泵，其特点是采用盐浸渍复合吸附剂的三维结构设计。抽湿泵通过在空间上分离吸附和解吸表面来同时进行吸附和解吸过程。利用化学势差，将捕获的水转移到外部，实现连续除湿，无需主动驱动机制。在稳定的高湿环境下，泵的平均除湿量为 256.20 g m h。对于缩小规模的温室原型，湿度泵在白天将室内湿度控制在适合园艺作物的范围内，与传统的被动除湿技术相比，多持续了 5.5 小时。