In the course of CRYOSYSTEM phase B (development phase) financed by the European Space Agency, EADS ST (Germany) has developed an optimized design of a −180°C freezer to be used on board the International Space Station for the freezing and storage of biological samples.The CRYOSYSTEM facility consists of the following main elements: The CRYORACK will be able to remain permanently on-orbit for up to 8 years with 2 vial freezers operating as the same time for a maximum of 2 years cumulated of cold time. Vial freezers will be launched from KSC (Florida) inside the CRYORACK in hot conditions and cooled down on orbit when installed on board ISS. Cryogenic samples will be downloaded from vial freezer into passive dewar for return on earth. This paper presents an overview of the CRYOSYSTEM architecture and mission profile; the cryogenic design, which merges the cooling and cold storage functions in one freezer unit; and results of breadboards of critical components, such as the cooler and dewar.


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    Title :

    A −180°C Cryogenic Freezer for the International Space Station


    Additional title:

    Sae Technical Papers



    Conference:

    International Conference On Environmental Systems ; 2005



    Publication date :

    2005-07-11




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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