✦ LIBER ✦

Thermodynamical aspects of pulse tubes II

✍ Scribed by A.T.A.M de Waele; P.P Steijaert; J.J Koning

Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 166 KB
Volume: 38
Category: Article
ISSN: 0011-2275
DOI: 10.1016/s0011-2275(97)00164-1

No coin nor oath required. For personal study only.

✦ Synopsis

In this paper, the dynamic behaviour of the temperature profiles in the regenerator and in the gas near the hot and cold ends of the tube are discussed. The operation of a single-orifice pulse tube is described in general thermodynamical terms. This approach is extended to the double-inlet pulse tube. Expressions for the various sources of entropy are derived which lead to a relation for the coefficient of performance. It is determined when the second inlet improves the operation of the pulse tube and what are the optimum settings.

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