Patent ID: 8051992
Filing Date: 2011-11-08
Classification: B01D,H01M,Y02E

Abstract:
1. A water transfer device comprising: a first flow path having an inlet and an outlet for receiving and discharging a first fluid stream; a second flow path having an inlet and an outlet for receiving and discharging a second fluid stream; a water transfer membrane in communication with and separating said first and second flow paths, said water transfer membrane operable to transfer a portion of a water content of a first fluid stream flowing through said first flow path to a second fluid stream flowing through said second flow path; and a first diffusion medium disposed between said water transfer membrane and said first flow path, said first diffusion medium being hydrophilic and operable to absorb liquid water in said first flow path, hold said absorbed liquid water in contact with said water transfer membrane, and transfer water to said water transfer membrane, and operable to diffuse water vapor, and transfer said water vapor to said water transfer membrane, wherein said first diffusion medium is made hydrophilic by curing thereon a solution of polyethylene glycol diacrylate and polyethylene glycol acrylate.