타이틀 |
Nano-Pervaporation Membrane with Heat Exchanger Generates Medical-Grade Water |
저자 |
Tsai, Chung-Yi;; Alexander, Jerry |
Keyword |
MEMBRANES;; POTABLE WATER;; WATER VAPOR;; HEAT EXCHANGERS;; LIFE SUPPORT SYSTEMS;; WATER TREATMENT;; VAPOR PRESSURE;; CONSUMABLES (SPACECREW SUPPLIES); |
URL |
http://hdl.handle.net/2060/20090032075 |
보고서번호 |
MSC-24264-1/6-1 |
발행년도 |
2009 |
출처 |
NTRS (NASA Technical Report Server) |
ABSTRACT |
A nanoporous membrane is used for the pervaporation process in which potable water is maintained, at atmospheric pressure, on the feed side of the membrane. The water enters the non-pervaporation (NPV) membrane device where it is separated into two streams retentate water and permeated water. The permeated pure water is removed by applying low vapor pressure on the permeate side to create water vapor before condensation. This permeated water vapor is subsequently condensed by coming in contact with the cool surface of a heat exchanger with heat being recovered through transfer to the feed water stream. |