Transient response in magnetocaloric regeneration

Shir, Farhad; Bennett, L. H.; Torre, E. Della; Mavriplis, Catherine; Shull, Robert D.

doi:10.1109/tmag.2005.848786

Cited by 20 publications

(4 citation statements)

References 17 publications

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“…Having introduced the Λ cool parameter, different published magnet designs can now be compared. There exist a substantial number of published designs of magnetic refrigerators but unfortunately many publications lack the necessary specifications to either reconstruct or directly calculate the Λ cool parameter [Richard et al, 2004;Shir et al, 2005;Zimm et al, 2006;Buchelnikov et al, 2007;Chen et al, 2007;Vuarnoz et al, 2007;Coelho et al, 2009;Dupuis et al, 2009;Sari et al, 2009]. The designs presented below are the ones that represents the main magnets configurations and contain sufficient information to calculate Λ cool .…”

Section: Published Magnet Designsmentioning

confidence: 99%

Review and comparison of magnet designs for magnetic refrigeration

Bjørk

Bahl

Smith

et al. 2010

International Journal of Refrigeration

151

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One of the key issues in magnetic refrigeration is generating the magnetic field that the magnetocaloric material must be subjected to. The magnet constitutes a major part of the expense of a complete magnetic refrigeration system and a large effort should therefore be invested in improving the magnet design. A detailed analysis of the efficiency of different published permanent magnet designs used in magnetic refrigeration applications is presented in this paper. Each design is analyzed based on the generated magnetic flux density, the volume of the region where this flux is generated and the amount of magnet material used. This is done by characterizing each design by a figure of merit magnet design efficiency parameter, Λ cool . The designs are then compared and the best design found. Finally recommendations for designing the ideal magnet design are presented based on the analysis of the reviewed designs.

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Section: Published Magnet Designsmentioning

confidence: 99%

Review and comparison of magnet designs for magnetic refrigeration

Bjørk

Bahl

Smith

et al. 2010

International Journal of Refrigeration

151

View full text Add to dashboard Cite

show abstract

“…In this magnetic refrigerator a magnetic field intensity of 2 T was obtained and Gd-R alloys were packed into beds performing a layering. The maximum temperature span achieved was 14 K. At the Washington State University a similar reciprocating magnetic refrigerator was reported (Shir et al, 2005). It was equipped by a Gd powder bed and the maximum i n t e r n a t i o n a l j o u r n a l o f r e f r i g e r a t i o n 3 3 ( 2 0 1 0 ) 1 0 2 9 e1 0 6 0 temperature span was 5 K. This refrigerator had a permanent magnet's assembly which provided a magnetic field strength of 2 T measured in the empty gap.…”

mentioning

confidence: 73%

A review of magnetic refrigerator and heat pump prototypes built before the year 2010

Liu

Egolf

et al. 2010

International Journal of Refrigeration

460

228

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“…Various degrees of success in implementing magnetic refrigeration as a near room temperature cooling technology have been reported by Bohigas et al (2000), Hirano et al (2002), Rowe and Barclay (2002a,b), Blumenfeld et al (2002), Wu (2003), Hirano (2003), Clot et al (2004), Richard et al (2004), Shir et al (2005), Lu et al (2005), Okamura et al (2006), and Rowe et al (2005). More recently six new magnetic refrigerators were unveiled by Chen et al (2007), Zimm et al (2007), Tang et al (2007), Tura and Rowe (2007), Buchelnikov et al (2007), Okamura et al (2007) and Poredos and Sarlah (2007) at Thermag II.…”

Section: Other Groupsmentioning

confidence: 99%

Thirty years of near room temperature magnetic cooling: Where we are today and future prospects

Gschneidner

Pecharsky

2008

International Journal of Refrigeration

635

200

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SurveyTechnology History a b s t r a c tThe seminal study by Brown in 1976 showed that it was possible to use the magnetocaloric effect to produce a substantial cooling effect near room temperature. About 15 years later Green et al. built a device which actually cooled a load other than the magnetocaloric material itself and the heat exchange fluid. The major breakthrough, however, occurred in 1997 when the Ames Laboratory/Astronautics proof-of-principle refrigerator showed that magnetic refrigeration was competitive with conventional gas compression cooling.Since then, over 25 magnetic cooling units have been built and tested throughout the world. The current status of near room temperature magnetic cooling is reviewed, including a discussion of the major problems facing commercialization and potential solutions thereof. The future outlook for this revolutionary technology is discussed.

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Transient response in magnetocaloric regeneration

Cited by 20 publications

References 17 publications

Review and comparison of magnet designs for magnetic refrigeration

Review and comparison of magnet designs for magnetic refrigeration

A review of magnetic refrigerator and heat pump prototypes built before the year 2010

Thirty years of near room temperature magnetic cooling: Where we are today and future prospects

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