Experimental researches on the performance of a rotary-type magnetic refrigerator with double-Halbach permanent magnet arrays

Zhen Xing Li, Jun Shen*, Ke Li, Wei Dai, Xin Qiang Gao, Xiao Hui Guo, Mao Qiong Gong

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A room-temperature rotary-type magnetic refrigerator based on previous experiences is designed and constructed with a modified double-Halbach permanent magnet arrays. When the inner magnet array is periodically rotated, the average magnetic field provided by the new magnet system ranges from 0.04 T to 1.50 T in the centre region of the inner bore along 70% length of magnet arrays. This is fairly superior to the average value of previous magnetic arrays, which ranges from 0.3 T to 1.2 T. Influence of the magnetic field strength on the refrigerating performance have been discussed and studied. A series of experiments based on Gadolinium have been done to investigate the system performance including no-load temperature span and cooling power, with different frequencies and utilization factors.

Original languageEnglish
Title of host publicationThermag 2018 - 8th International Conference on Caloric Cooling
PublisherInternational Institute of Refrigeration
Pages191-196
Number of pages6
ISBN (Electronic)9782362150289
DOIs
Publication statusPublished - 2018
Externally publishedYes
Event8th International Conference on Caloric Cooling, Thermag 2018 - Darmstadt, Germany
Duration: 16 Sept 201820 Sept 2018

Publication series

NameRefrigeration Science and Technology
Volume2018-January
ISSN (Print)0151-1637

Conference

Conference8th International Conference on Caloric Cooling, Thermag 2018
Country/TerritoryGermany
CityDarmstadt
Period16/09/1820/09/18

Keywords

  • Active magnetic regenerator
  • Magnetic field.
  • Magnetic refrigeration
  • Magnetocaloric effect

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