Abstract For the purpose of cooling space-borne infrared devices, two types of miniature multi-bypass coaxial pulse tube refrigerators are currently under development in our laboratory. The Oxford-style compressors with flexure bearings and clearance seals made by our laboratory are used to generate the pressure waves. The first type of miniature pulse tube refrigerator is designed for a compressor with about 2 cc swept volume. It is expected to provide 1 W of cooling power at 80 K. The second type of miniature pulse tube refrigerator uses a compressor with 0.79 cc swept volume. It is designed to have a cooling capacity of 150 mW at 85 K. At present the first one, coupled with a 1.66 cc compressor, reaches 66 K with no cooling load and produces 0.6 W of cooling power at 80 K with 66 W compressor input power, while the second one reaches 82 K and produces 100 mW at 85 K with 29 W input power.


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    Title :

    Performances of Two Types of Miniature Multi-Bypass Coaxial Pulse Tube Refrigerators


    Contributors:
    Liang, J. T. (author) / Yang, J. H. (author) / Zhu, W. X. (author) / Zhou, Y. (author) / Ju, Y. L. (author)

    Published in:

    Publication date :

    2002-01-01


    Size :

    7 pages




    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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    Progress in pulse tube refrigerators

    David, M. | British Library Online Contents | 1997


    Progress in pulse tube refrigerators

    David, M. / European Space Agency | British Library Conference Proceedings | 1997


    Optimal Design of a Compact Coaxial Miniature Pulse Tube Cooler

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    Optimal Design of a Compact Coaxial Miniature Pulse Tube Cooler

    Ju, Y. L. / Zhou, Y. / Liang, J. T. et al. | Springer Verlag | 2002