Browse Publications Technical Papers 2002-01-2397
2002-07-15

The Development of the Wiped-Film Rotating-Disk Evaporator for the Reclamation of Water at Microgravity 2002-01-2397

This project is a Phase III SBIR contract between NASA and Water Reuse Technology (WRT). It covers the redesign, modification, and construction of the Wiped-Film Rotating-Disk (WFRD) evaporator for use in microgravity and its integration into a Vapor Phase Catalytic Ammonia Removal (VPCAR) system. VPCAR is a water processor technology for long duration space exploration applications. The system is designed as an engineering development unit specifically aimed at being integrated into NASA Johnson Space Center's Bioregenerative Planetary Life Support Test Complex (BIO-Plex). The WFRD evaporator and the compressor are being designed and built by WRT. The balance of the VPCAR system and the integrated package are being designed and built by Hamilton Sundstrand Space Systems International, Inc. (HSSSI) under a subcontract with WRT.
This paper provides a description of the VPCAR technology and the advances that are being incorporated into the unit. These advances include the micro-gravity WFRD evaporator and the highly integrated packaging and automatic system controls. It includes preliminary data on the performance of the WFRD evaporator as well as progress on the construction of the VPCAR system.

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