This paper describes the elements of a pumped two-phase ammonia thermal control system designed for microgravity environments, the development of the concept into a Space Station flight design, and design details of the prototype to be ground-tested in the Johnson Space Center (JSC) Thermal Test Bed. The basic system concept is one of forced-flow heat transport through interface heat exchangers with anhydrous ammonia being pumped by a device expressly designed for two-phase fluid management in reduced gravity. Control of saturation conditions, and thus system interface temperatures, is accomplished with a single central pressure regulating valve. Flow control and liquid inventory are controlled by passive, nonelectromechanical devices. Use of these simple control elements results in minimal computer controls and high system reliability. Building on the basic system concept, a brief overview of a potential Space Station flight design is given. Primary verification of the system concept will involve testing at JSC of a 26-kW ground test article currently in fabrication.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Development of a prototype two-phase thermal bus system for space station


    Weitere Titelangaben:

    Entwicklung eines Prototyps eines Zweiphasen Thermal Bus System fuer eine Raumstation


    Beteiligte:
    Myron, D.L. (Autor:in) / Parish, R.C. (Autor:in)

    Erschienen in:

    AIAA-Papers ; Jun ; 1-10


    Erscheinungsdatum :

    1987


    Format / Umfang :

    10 Seiten, 9 Bilder, 2 Tabellen, 7 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch






    Prototype Thermal Bus for Manned Space Station Compartments

    Owen, James W. / Zentner, Ronald C. | SAE Technical Papers | 1986


    Design of an Ammonia Two-Phase Prototype Thermal Bus for Space Station

    Gustafson, Eric / Parish, Richard / Brown, Richard F. | SAE Technical Papers | 1987


    Alkaline RFC space station prototype

    Hackler, I.M. | Tema Archiv | 1986