The development of hydrogen sorption cryocoolers over the past 30 years is briefly reviewed. The behavior of the metal hydride sorbent beds used in the sorption compressors dominates both the performance and reliability of these closed-cycle Joule-Thomson cryocoolers. Improved compressor elements have been recently designed to minimize their input power requirements and to enhance hydride durability during extended temperature cycling while in operation. ZrNi hydride is used to provide variable gas pressure in the gas-gap heat switches for each compressor element. Characterization tests have been performed on the compressor elements built for an engineering breadboard (EBB) cryocooler to evaluate the behavior of both the sorbent bed and gas-gap switches under conditions simulating flight operation for the future Planck mission of the European Space Agency (ESA). Operation of the Planck EBB sorption cryocooler has produced a cooling capacity of 1.0-1.7 W at a temperature of 17.7 K during initial laboratory tests.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Development of metal hydride beds for sorption cryocoolers in space applications


    Beteiligte:


    Erscheinungsdatum :

    2003


    Format / Umfang :

    5 Seiten, 18 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Recent Progress in Development of Hydrogen Sorption Cryocoolers for Space Applications

    Bowman, R. C. / Wade, L. A. / Bhandari, P. et al. | NTRS | 1998


    Vibration Free Sorption Cryocoolers for Astrophysics Applications

    Lindensmith, C. / Wade, L. / Bowman, R. et al. | NTRS | 1998


    Sorption cryocoolers : a literature survey

    Grossman, Gershon / Fruchter, Eliezer / Factor, Haim M. | TIBKAT | 2002


    Hydrogen Sorption Cryocoolers for the Planck Mission

    Wade, L. / Bhandari, P. / Bowman, R. et al. | NTRS | 1999