✦ LIBER ✦

Development of a single-stage pulse tube refrigerator capable of reaching 49 K

✍ Scribed by Jingtao Liang; Yuan Zhou; Wenxiu Zhu

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 280 KB
Volume: 30
Category: Article
ISSN: 0011-2275
DOI: 10.1016/0011-2275(90)90114-r

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✦ Synopsis

The orifice pulse tube refrigerator is a new type of cryocooler which was reported to be capable of reaching 60 K. The present authors have achieved a temperature of 49 K for the first time with a single-stage orifice pulse tube refrigerator by improving the regenerator, the hot end heat exchanger and the insulation of the low temperature sections. A refrigeration power of 12 W could be obtained at 77 K at the cold end. The relation between the ratio of regenerator volume to pulse tube volume and the minimum temperature of the orifice pulse tube refrigerator was experimentally investigated. Methods for further improving the performance of the orifice pulse tube refrigerator are discussed.

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