Abstract The effect of He-H2 mixtures on the cooling power and efficiency (COP) of a 20K two-stage pulse tube refrigerator is studied in this paper. According to our preliminary findings we have concluded that a properly composed He-H2 mixture can substantially increase the cooling capacity of a pulse tube refrigerator at 20 K. He-H2 mixtures with 7%–46% H2 were investigated and found to provide 18%–68% more cooling power than with pure helium at 20 K. The above are only preliminary results. In future research, we plan to conduct experiments with He-H2 mixtures with even higher hydrogen fractions.


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    Titel :

    Experimental Study on Two-stage Pulse Tube Refrigeration with Mixtures of Helium and Hydrogen


    Beteiligte:
    Jiang, N. (Autor:in) / Gan, Z. H. (Autor:in) / Chen, G. B. (Autor:in) / Qiu, L. M. (Autor:in) / Jiang, Y. L. (Autor:in) / He, Y. L. (Autor:in) / Li, N. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2003-01-01


    Format / Umfang :

    5 pages




    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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