| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1871486 | Physics Procedia | 2015 | 6 Pages |
Abstract
A mixed refrigerant cascade presents a potential solution for cooling of high-temperature superconductors between 55 K and 70 K. The envisioned process consists of a pre-cooling and a low-temperature stage, where pre-cooling to 120 K is achieved by a conventional mixed refrigerant cycle. The low-temperature stage operates with a mixture of neon, nitrogen and oxygen at high pressure. Process simulation predicts an overall efficiency of about 8% of Carnot at 55 K. Simulation results for the pre-cooling stage were validated by experiments with an existing test stand.
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