Gel-induced dew condensation

JOURNAL OF HYDROLOGY

卷:599

Article

Urbina, R.^1,2  Lefavrais, S.^1,3  Royon, L.⁴  Mongruel, A.¹  Gonzalez-Vinas, W.²  Beysens, D.^1,3 

[1] Sorbonne Univ, ESPCI Paris PSL Univ, Sorbonne Paris Cite, Phys & Mecan Milieux Heterogenes,UMR 7636,CNRS, F-75005 Paris, France

[2] Univ Navarra, PHYSMED & Complex Syst Grp, Pamplona, Spain

[3] OPUR, 2 Rue Verderet, F-75016 Paris, France

[4] Sorbonne Paris Cite, UMR 8236, Lab Energies Demain, CNRS, F-75013 Paris, France

关键词: Water harvesting;    Hydrogel;    Dew condensation;    Vapor adsorption;   

DOI  :  10.1016/j.jhydrol.2021.126263

来源: Elsevier

【 摘 要 】

Hydrogels are known to adsorb a large amount of vapor and liquid water, making them good candidates to enhance the amount of dew condensed from atmosphere. Although water vapor adsorption and liquid invasion in hydrogels have been the object of many studies, water condensation has been only little investigated. We address here the process of dew condensation on hydrogel grains widely used in agriculture (Aquasorb 3005 (TM)). We show that dew condensing on hydrogels is enhanced when compared to a regular bare substrate due to vapor adsorption, which adds to condensation. Hydrogels, which can both capture water by vapor adsorption and condense water vapor with high efficiency, are thus good candidates to harvest water vapor from atmosphere with higher yield than regular bare surfaces.

【 授权许可】

Free