Abstract
We have constructed a two stage pulse tube refrigerator equipped with two rotary valve system. The first stage regenerator was packed 1735 stainless steel screens of #200 and the second stage regenerator was packed with 359 g Pb shot of 0.3~0.4 mm diameter. The experiment was carried out at fixed frequency of 2.6 Hz and phase angles of 122 degrees using two compressor units of 40 m3/h. The performance test was made by changing systematically the volume ratio of first and second pulse tube and their total volumes. The lowest temperature at the second stage cold end was 15.6 K at the optimum operated conditions, when the volume ratio was 1 and the total volume was equal to the total void volume of the regenerators. We tried to simulate the performance using the equivalent P-V work method, and investigated the correlation between the experimental results and the calculated PV work. It is found that the equivalent P-V diagram method is useful for the understanding of the gas behavior in the pulse tube and the performance of the refrigerator.
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© 1996 Plenum Press, New York
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Tanaka, M., Nishitani, T., Kodama, T., Araki, T., Kawaguchi, E., Yanai, M. (1996). Experimental and Analytical Study of Two Stage Pulse Tube Refrigerator. In: Kittel, P. (eds) Advances in Cryogenic Engineering. A Cryogenic Engineering Conference Publication, vol 41. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0373-2_187
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DOI: https://doi.org/10.1007/978-1-4613-0373-2_187
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