This paper describes the operational principles of a hybrid capillary pumped loop in general, and results on testing of a high power hybrid system in particular. A hybrid capillary pumped loop is a thermal control system which consists of a capillary pumped loop and a mechanical pump which is placed in series with the capillary evaporators in the liquid return line. The hybrid loop can be operated in either a passive capillary mode, or in a pump-assisted mode, whereby the mechanical pump augments the heat transport capability of the capillary evaporators. The high power hybrid system was built to demonstrate the feasibility of such a hybrid loop concept. Test results verified that a hybrid loop could be operated in either mode, and that transition between these two modes of operation required opening or closing a single valve on the liquid line. Heat transport limit of 25 kW in the capillary mode and over 50 kW in the pump-assisted mode were demonstrated, using ammonia as the working fluid. The high power hybrid system retains the simplicity and operational characteristics of a capillary pumped loop while incorporating significant performance latitude afforded by the mechanical pump.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    The Hybrid Capillary Pumped Loop


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    Intersociety Conference on Environmental Systems ; 1988



    Erscheinungsdatum :

    01.07.1988




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Capillary Pumped Loop Modeler

    Ku, Jentung / Itkin, Elliot / Schweickart, Russell B. et al. | NTRS | 1990


    An Improved High Power Hybrid capillary pumped loop

    Krollczek, Edward J. / ku, Jentung / McCabe, Michael E. | SAE Technical Papers | 1989


    Capillary Pumped Loop Application Guide

    Cullimore, Brent A. | SAE Technical Papers | 1993



    Capillary Pumped Loop Supporting Technology

    Krotiuk, William J. | AIAA | 1990