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Experimental study of two-stage Gifford-McMahon Cryorefrigerator

โœ Scribed by D.Y. Koh; S.J. Park; C.J. Yoo; H.O. Choi

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
109 KB
Volume
7
Category
Article
ISSN
0894-1777

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๐Ÿ“œ SIMILAR VOLUMES

Two stage Gifford-McMahon cycle cryorefr
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This paper describes a two stage Gifford-McMahon cycle cryorefrigerator operating on the gas balancing principle. Here, the cryorefrigerator is driven by a valve mechanism consisting of two spool valves operating at a suitable phase sequence with respect to each other. The valve mechanism is driven

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A heat balance analysis of single stage Gifford-McMahon cycle cryorefrigerator is presented. Ideal refrigeration, actual refrigeration, net refrigeration and the various losses are tabulated. It is observed that pressure-volume losses account for a major fraction of the total losses.

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The dynamic characteristics of a pneumatically driven Gifford-McMahon cryorefrigerator are modelled when the cryorefrigerator is operating in the steady state regime. The mathematical model, which includes dynamic, fluid dynamic and thermodynamic effects, consists of a set of six simultaneous differ

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Exergy or the available work energy function is a useful concept for analysing a Gifford-McMahon cycle. By definition, exergy of a state 1 is the maximum work that would be obtained in bringing the state to the dead state or ambient state for a heat engine. For a refrigerator, exergy is the minimum

Motional heat loss of a Gifford-McMahon
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The motional heat loss of a Gifford-McMahon (G-M) cryorefrigerator was calculated by a finite difference formulation. The two-dimensional axisymmetric finite difference model consisted of a set of equations describing the transient heat transfer in the radial and axial directions from the displacer