A pulsed single-blow method has been developed for testing of Stirling regenerator materials performance. The method uses a tubular flow arrangement with a steady gas flow passing through a regenerator matrix sample that packs the flow channel for a short distance. A wire grid heater spanning the gas flow channel is used to heat a plug of gas by approximately 2 K for approximately 350 ms. Foil thermocouples monitor the gas temperature entering and leaving the sample. Data analysis based on a 1-D incompressible-flow thermal model allows the extraction of Stanton number. A figure of merit involving heat transfer and pressure drop is used to present results for steel screens and steel felt. The observations show a lower figure of merit for the materials tested than is expected based on correlations obtained by other methods.


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    Title :

    Pulsed Single-Blow Regenerator Testing


    Additional title:

    Sae Technical Papers


    Contributors:
    Rauch, J. (author) / Oldson, J. C. (author) / Knowles, T. R. (author)

    Conference:

    27th Intersociety Energy Conversion Engineering Conference (1992) ; 1992



    Publication date :

    1992-08-03




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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