Vapor compression distiller and membrane technology for water revitalization. |
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| Authors: | A Ashida K Mitani K Ebara H Kurokawa I Sawada H Kashiwagi T Tsuji S Hayashi K Otsubo K Nitta |
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| Institution: | Planning and Engineering Department, Hitachi Ltd, Tokyo, Japan. |
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| Abstract: | Water revitalization for a space station can consist of membrane filtration processes and a distillation process. Water recycling equipment using membrane filtration processes was manufactured for ground testing. It was assembled using commercially available components. Two systems for the distillation are studied; one is an absorption type thermopervaporation cell and the other is a vapor compression distiller. Absorption type thermopervaporation able to easily produce condensed water under zero gravity was investigated experimentally and through simulated calculation. The vapor compression distiller was studied experimentally and it offers significant energy savings for evaporation of water. |
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