Performance investigation of a high-field active magnetic regenerator
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Univ. of Victoria, Victoria, B.C. (Canada)
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Ames Lab. and Iowa State Univ., Ames, IA (United States)
- Univ. of Victoria, Victoria, B.C. (Canada)
- Emerald Energy NW LLC, Bothell, WA (United States)
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 (AMRR) 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 span and a second-law efficiency exceeding 20% is achievable.
- Research Organization:
- Ames Laboratory (AMES), Ames, IA (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- Grant/Contract Number:
- AC02-07CH11358; AC05-76RL01830
- OSTI ID:
- 1545361
- Alternate ID(s):
- OSTI ID: 1507527; OSTI ID: 1755273
- Report Number(s):
- IS-J-9904; PNNL-SA-135929
- Journal Information:
- Applied Energy, Vol. 236, Issue C; ISSN 0306-2619
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Energy Applications of Magnetocaloric Materials
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journal | March 2020 |
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