High‐performance and wide relative humidity passive evaporative cooling utilizing atmospheric water

作     者：Guang Wang Yang Li Huihe Qiu He Yan Yanguang Zhou 

作者机构：Department of Mechanical and Aerospace EngineeringThe Hong Kong University of Science and TechnologyHong KongChina Department of ChemistryThe Hong Kong University of Science and TechnologyHong KongChina 

出 版 物：《液滴(英文)》 (Droplet)

年 卷 期：2023年第2卷第1期

页      面：24-35页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：HKUST‐GZU,Grant/Award Number:GZU21EG06 HKUST Bridge Gap Fund,Grant/Award Number:BGF.008.2021 SJTU‐HKUST,Grant/Award Number:SJTU21EG09 HKUST start-up fund,Grant/Award Numbers:REC20EGR14,a/c‐R9246 

主　　题：composite passive performance 

摘      要：Global warming and increased living standards have rapidly increased the demand for cooling *** this demand in less economically developed areas is highly challenging due to a lack of *** this paper,we have demonstrated a high‐performance and wide relative humidity(RH)solar‐driven evaporative cooling strategy that uses only atmospheric *** here for the first time,we designed a metal–organic framework(MOF‐801)based composite with a high‐performance atmospheric water absorption across a wide range of *** as‐synthesized composite can adsorb atmospheric water up to~22%(~80%)of its weight at an RH@28%(~70%).Our demonstration has shown that the corresponding cooling powers range from 136 to 344 W/m2 in a wide range of RH and solar intensities,and the passive cooling temperature is up to 14°C lower than the device s reference *** study thus proposes a solar‐driven cooling coating with high cooling powers across a wide range of RH based on an as‐synthesized composite,which pinpoints a pathway to replace traditional compression‐based cooling systems(e.g.,air conditioners)and which will also have a significant impact in future global energy consumption.