Vibration free 4.5K sorption cooler

    Research output: Contribution to conferencePaperAcademic

    4 Citations (Scopus)

    Abstract

    At the University of Twente, a breadboard 4.5 K sorption cooler was developed under ESA contract. It has no moving parts and, therefore, is essentially vibration-free. Moreover, it has the potential of a very long life. This cooler is a favorite option for missions such as ESA's Darwin mission, which is a future space interferometer consisting of a few free flying telescopes and a central beam combiner. Because of the optics involved, hardly any vibration can be tolerated. The cooler consists of a hydrogen stage cooling from 80 K to 14.5 K and a helium stage establishing 10 mW at 4.5 K. Both stages use micro-porous activated carbon as the adsorption material. The two cooler stages need 8 W of input power and are heat sunk at two passive radiators at temperatures of about 50 and 80 K. We developed and built a demonstrator of the helium stage. In the paper, the design, realization and tests of this demonstrator cooler are reviewed.
    Original languageEnglish
    Pages1613-1620
    DOIs
    Publication statusPublished - 16 Jul 2008
    Event2007 Cryogenic Engineering Conference and International Cryogenic Materials Conference, CEC/ICMC 2007 - Chattanooga Convention Center, Chattanooga, United States
    Duration: 16 Jul 200720 Jul 2007
    http://www.cec-icmc.org/cec-icmc-2007/

    Conference

    Conference2007 Cryogenic Engineering Conference and International Cryogenic Materials Conference, CEC/ICMC 2007
    Abbreviated titleCEC/ICMC
    CountryUnited States
    CityChattanooga
    Period16/07/0720/07/07
    Internet address

    Keywords

    • METIS-252484

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