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Development of a cryogenic mixed fluid J-T cooling computer code, 'JTMIX'An initial study was performed for analyzing and predicting the temperatures and cooling capacities when mixtures of fluids are used in Joule-Thomson coolers and in heat pipes. A computer code, JTMIX, was developed for mixed gas J-T analysis for any fluid combination of neon, nitrogen, various hydrocarbons, argon, oxygen, carbon monoxide, carbon dioxide, and hydrogen sulfide. When used in conjunction with the NIST computer code, DDMIX, it has accurately predicted order-of-magnitude increases in J-T cooling capacities when various hydrocarbons are added to nitrogen, and it predicts nitrogen normal boiling point depressions to as low as 60 K when neon is added.
Document ID
19910058864
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Jones, Jack A.
(JPL Pasadena, CA, United States)
Date Acquired
August 15, 2013
Publication Date
June 1, 1991
Subject Category
Engineering (General)
Report/Patent Number
AIAA PAPER 91-1428
Accession Number
91A43487
Distribution Limits
Public
Copyright
Other

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