Vapor compression distillation technology for phase change recovery of potable water from wastewater has evolved as a technically mature and promising approach for use aboard NASA's Space Station. A program to design, develop, fabricate and test an advanced preprototype Vapor Compression Distillation Subsystem (VCDS) was completed by Life Systems for the NASA Johnson Space Center (JSC) during 1983.This advanced preprototype VCDS reclaims over 96 percent of the available wastewater at a nominal water recovery rate of 1.36 kg/h (3.0 lb/hr) and 303 K (85 F) condenser temperature. The unit weights, 101 kg (223 lb), occupies a volume of 0.49 m3 (17.3 ft3) and requires only 115 W electrical power.This paper presents a summary of the design improvements implemented in the advanced preprototype VCDS compared to previous systems and discusses the results of an extensive test program with respect to performance, life and product water quality. A discussion of current efforts involving specific improvements in VCDS components and results of parametric testing is also presented. Projections are made for a flight version Phase Change Water Processing System for the Space Station consisting of a VCDS integrated with wastewater pretreatment, product water post-treatment, biocide addition and water quality monitor assemblies.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Phase Change Water Processing for Space Station


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Intersociety Conference on Environmental Systems ; 1985



    Publication date :

    1985-07-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Space Station Water Recovery Trade Study—Phase Change Technology

    Baer-Peckham, David / Gorensek, Max B. | SAE Technical Papers | 1988


    Phase Change Water Recovery for Space Station - Parametric Testing and Analysis

    Zdankiewicz, Ed M. / Chu, James | SAE Technical Papers | 1986


    Phase Change Water Recovery for the Space Station Freedom and Future Exploration Missions

    Schubert, Franz H. / Miernik, Janie H. / Noble, Larry D. et al. | SAE Technical Papers | 1990


    SPACE STATION CREW CHANGE

    Kidger, Neville | Online Contents | 1997


    Space Station ground processing

    Scully, E. J. | NTRS | 1986