Analysis and Experimental Research of a Multi-Bypass Version Pulse Tube Refrigerator
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One important configuration of a pulse tube refrigerator is the multi-bypass pulse tube refrigerator (MPTR). This paper analyzes the working processes of this PT configuration and presents some experimental results taken using operating frequencies below 5 Hz. The analysis shows that a MPTR is different from a general multi-stage cooler, but works somewhat like a multi-stage cooler to a certain extent. Experimental results are presented and compared to former results. The experiments demonstrate that the multi-bypass channel leads to an improvement in performance, and that the function of the multi-bypass more resembles a double-inlet than the first-stage of a multi-stage cooler.
KeywordsPulse Tube Orifice Opening Refrigeration Temperature High Temperature Part Pulse Tube Refrigerator
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- 1.Zhou, Y., Han, Y.J., “Pulse tube refrigerator research,” 7th International Cryocooler Conference Proceedings, Air Force Phillips Laboratory Report PL-CP-93-1001, Kirtland Air Force Base, NM, April 1993, p. 147.Google Scholar
- 4.Olson, J.R., Kotsubo, V., Champagnes, P.J., Nast, T.C., “Performance of a two-stage pulse tube cryocooler for space application,” Cryocoolers 10, Kluwer Academic/Plenum Publishers (1999), pp. 163–170.Google Scholar