Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7915899 | Cryogenics | 2016 | 38 Pages |
Abstract
A thermodynamic model of a 3He-4He cold cycle dilution refrigerator with no actively-driven mechanical components is developed and investigated. The refrigerator employs a reversible superfluid magnetic pump, passive check valves, a phase separation chamber, and a series of recuperative heat exchangers to continuously circulate 3He-4He and maintain a 3He concentration gradient across the mixing chamber. The model predicts cooling power and mixing chamber temperature for a range of design and operating parameters, allowing an evaluation of feasibility for potential 3He-4He cold cycle dilution refrigerator prototype designs. Model simulations for a prototype refrigerator design are presented.
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Materials Science
Electronic, Optical and Magnetic Materials
Authors
B.W. Mueller, F.K. Miller,