Performance investigation of a high-field active magnetic regenerator
| Autor: | Andrew Rowe, J. A. Barclay, R. Teyber, Edwin C. Thomsen, Jun Cui, Evgueni Polikarpov, Jamelyn D. Holladay, Kerry D. Meinhardt |
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| Rok vydání: | 2019 |
| Předmět: |
Work (thermodynamics)
Materials science Field (physics) 020209 energy Mechanical Engineering Nuclear engineering Refrigerator car 02 engineering and technology Building and Construction Superconducting magnet Management Monitoring Policy and Law Span (engineering) 7. Clean energy General Energy 020401 chemical engineering Regenerative heat exchanger 0202 electrical engineering electronic engineering information engineering Fluid dynamics Magnetic refrigeration 0204 chemical engineering |
| Zdroj: | Applied Energy. 236:426-436 |
| ISSN: | 0306-2619 |
| Popis: | Regenerative magnetic cycles are of interest for small-scale, high-efficiency cryogen liquefiers; however, commercially relevant performance has yet to be demonstrated. To develop improved engineering prototypes, an efficient modeling tool is required to screen the multi-parameter design space. In this work, we describe an active magnetic regenerative refrigerator prototype using a high-field superconducting magnet that produces a 100 K temperature span. Using the experimental data, a semi-analytic AMR element model is validated and enhanced system performance is simulated using liquid propane as a heat transfer fluid. In addition, the regenerator composition and fluid flow are simultaneously optimized using a differential evolution algorithm. Simulation results indicate that a natural gas liquefier with a 160 K temperature span and a second-law efficiency exceeding 20% is achievable. |
| Databáze: | OpenAIRE |
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