To give a wide survey on the performance of cryogenic heat pipes, various tests with 11 different types of heat pipes had been performed in the temperature range of 70 K - 200 K. The tests included 4 working fluids (CH4, C2H6, N2, CF4) and capillary structures of various types (4 geometries of open grooves, screen covered grooves, different layers of screen at the wall, 'eight-artery' and a 'modular structure'). The results confirm the advantages of axial-grooved heat pipes. The maximum heat transfer capability has been achieved with screen covered grooves.


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    Titel :

    Experimental evaluation of cryogenic heat pipes with various heat carriers and capillary structures


    Weitere Titelangaben:

    Experimentelle Untersuchung von kaelteerzeugenden Waermeleitrohren mit Kapillarstruktur unter Einsatz verschiedener Waermetraeger


    Beteiligte:
    Kreeb, H. (Autor:in) / Molt, W. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1978


    Format / Umfang :

    8 Seiten, 7 Bilder, 7 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





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