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Title: On the possible cycles via the unified perspective of cryocoolers. Part A: The Joule-Thomson cryocooler

Joule-Thomson (JT) cryocoolers possess a self adjusting effect, which preserves the state of the returning stream from the evaporator as a saturated vapor. The heat load can be entirely absorbed at constant temperature by evaporation even for different sized heat exchangers. It is not possible for the steady state flow resulting from a gradual cool down to penetrate 'deeper' into the two-phase dome, and produce a two phase return flow even with a heat exchanger of unlimited size. Such behavior was implicitly taken for granted in the literature but never clearly stated nor questioned and therefore never systematically proven. The discussion provided below provides such a proof via the unified model of cryocoolers. This model portrays all cryocoolers as magnifiers of their respective elementary temperature reducing mechanism through the process of 'interchanging'.
Authors:
 [1] ;  [2]
  1. Rafael, Ltd., P.O. Box 2250, Haifa 3102102 (Israel)
  2. University of Wisconsin-Madison, Madison, WI 53706 (United States)
Publication Date:
OSTI Identifier:
22262751
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1573; Journal Issue: 1; Conference: Cryogenic engineering conference, Anchorage, AK (United States), 17-21 Jun 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; COOLING; COOLING SYSTEMS; EVAPORATION; HEAT EXCHANGERS; HEATING LOAD