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Title: Performance investigation of a high-field active magnetic regenerator

Journal Article · · Applied Energy
ORCiD logo [1];  [2];  [2];  [2];  [2];  [3];  [4];  [5]
  1. 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)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  3. Ames Lab. and Iowa State Univ., Ames, IA (United States)
  4. Univ. of Victoria, Victoria, B.C. (Canada)
  5. 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
Citation Metrics:
Cited by: 21 works
Citation information provided by
Web of Science

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Cited By (1)

Energy Applications of Magnetocaloric Materials journal March 2020