A numerical analysis of a magnetocaloric refrigerator with a 16layer regenerator
Abstract
A numerical analysis was conducted to study a room temperature magnetocaloric refrigerator with a 16layer parallel plates active magnetic regenerator (AMR). Sixteen layers of LaFeMnSiH having different Curie temperatures were employed as magnetocaloric material (MCM) in the regenerator. Measured properties data was used. A transient one dimensional (1D) model was employed, in which a unique numerical method was developed to significantly accelerate the simulation speed of the multilayer AMR system. As a result, the computation speed of a multilayer AMR case was very close to the singlelayer configuration. The performance of the 16layer AMR system in different frequencies and utilizations has been investigated using this model. To optimize the layer length distribution of the 16layer MCMs in the regenerator, a set of 137 simulations with different MCM distributions based on the Design of Experiments (DoE) method was conducted and the results were analyzed. The results show that the 16layer AMR system can operate up to 84% of Carnot cycle COP at a temperature span of 41 K, which cannot be obtained using an AMR with fewer layers. Here, the DoE results indicate that for a 16layer AMR system, the uniform distribution is very close to the optimized design.
 Authors:
 Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
 Publication Date:
 Research Org.:
 Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
 Sponsoring Org.:
 USDOE
 OSTI Identifier:
 1407793
 Grant/Contract Number:
 AC0500OR22725
 Resource Type:
 Journal Article: Accepted Manuscript
 Journal Name:
 Scientific Reports
 Additional Journal Information:
 Journal Volume: 7; Journal Issue: 1; Journal ID: ISSN 20452322
 Publisher:
 Nature Publishing Group
 Country of Publication:
 United States
 Language:
 English
 Subject:
 36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Citation Formats
Zhang, Mingkan, Abdelaziz, Omar, Momen, Ayyoub Mehdizadeh, and AbuHeiba, Ahmad. A numerical analysis of a magnetocaloric refrigerator with a 16layer regenerator. United States: N. p., 2017.
Web. doi:10.1038/s41598017144069.
Zhang, Mingkan, Abdelaziz, Omar, Momen, Ayyoub Mehdizadeh, & AbuHeiba, Ahmad. A numerical analysis of a magnetocaloric refrigerator with a 16layer regenerator. United States. doi:10.1038/s41598017144069.
Zhang, Mingkan, Abdelaziz, Omar, Momen, Ayyoub Mehdizadeh, and AbuHeiba, Ahmad. 2017.
"A numerical analysis of a magnetocaloric refrigerator with a 16layer regenerator". United States.
doi:10.1038/s41598017144069. https://www.osti.gov/servlets/purl/1407793.
@article{osti_1407793,
title = {A numerical analysis of a magnetocaloric refrigerator with a 16layer regenerator},
author = {Zhang, Mingkan and Abdelaziz, Omar and Momen, Ayyoub Mehdizadeh and AbuHeiba, Ahmad},
abstractNote = {A numerical analysis was conducted to study a room temperature magnetocaloric refrigerator with a 16layer parallel plates active magnetic regenerator (AMR). Sixteen layers of LaFeMnSiH having different Curie temperatures were employed as magnetocaloric material (MCM) in the regenerator. Measured properties data was used. A transient one dimensional (1D) model was employed, in which a unique numerical method was developed to significantly accelerate the simulation speed of the multilayer AMR system. As a result, the computation speed of a multilayer AMR case was very close to the singlelayer configuration. The performance of the 16layer AMR system in different frequencies and utilizations has been investigated using this model. To optimize the layer length distribution of the 16layer MCMs in the regenerator, a set of 137 simulations with different MCM distributions based on the Design of Experiments (DoE) method was conducted and the results were analyzed. The results show that the 16layer AMR system can operate up to 84% of Carnot cycle COP at a temperature span of 41 K, which cannot be obtained using an AMR with fewer layers. Here, the DoE results indicate that for a 16layer AMR system, the uniform distribution is very close to the optimized design.},
doi = {10.1038/s41598017144069},
journal = {Scientific Reports},
number = 1,
volume = 7,
place = {United States},
year = 2017,
month =
}

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