✦ LIBER ✦

Thermodynamic analysis of a new gas refrigeration cycle

✍ Scribed by P Hrycak

Publisher: Elsevier Science
Year: 1963
Tongue: English
Weight: 308 KB
Volume: 3
Category: Article
ISSN: 0011-2275
DOI: 10.1016/0011-2275(63)90066-3

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✦ Synopsis

RECENTLY, McMahon and Gifford 1 described a gas refrigeration system which, in their opinion, is the logical extension and modification of the well known Philips gas refrigeration cycle 2 with the purpose of making it more suitable for low temperature applications. Its general behaviour and characteristics were reviewed by McMahon) In that article the general thermodynamic considerations have been outlined, and an expression for the refrigerating effect has been derived. However, a complete understanding of what is apparently an entirely new refrigeration cycle is possible only after its coefficient of performance is available. The present article, therefore, has the aim of discussing the merits of the McMahon-Gifford refrigeration cycle by deriving first an expression for its coefficient of performance. Then it becomes possible to discuss the advantages of this new refrigeration system by comparison with the Philips cycle and also other gas refrigeration cycles, as is ordinarily done in thermodynamic analysis. 4 For this purpose, the operation of the McMahon-Gifford cycle is first briefly reviewed.

The general layout of the system is given in Figure . The arrangement of components is the same as originally given in reference 1.

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