Magnetocaloric Effect in Cryocooler Regenerator Materials and its Applications

Kumar, Rajendra

doi:10.1016/j.matpr.2017.06.011

Cited by 10 publications

(1 citation statement)

References 21 publications

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“…With rapid steps, increased refrigeration efficiency, reduction in weight, greater mechanical stability, lower environmental impact, greater efficiency, lower noise levels and high cost-effectiveness, magnetocaloric refrigerator (MR) has developed into a strong alternative to gas refrigeration by magnetocaloric effect (MCE) [1][2][3][4][5][6]. In space applications, medical appliances, aerospace applications and food cooling, MR is a fundamental requirement [7][8][9][10][11][12][13][14]. In the range of temperatures near the temperature of a magnetic phase transition ) ( MPT T , MR uses the idea to apply MCE on magnetocaloric (MC) material [15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Strong Role of Calcination Temperature for Improving Magnetocaloric Effect in Nd0.5Sr0.5MnO3 Prepared via Combustion Technique

Hamad

Alamri

2021

Preprint

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In this work, phenomenological model (PM) is used to simulate the magnetocaloric effect (MCE) of Nd0.5Sr0.5MnO3 (NSMO) sample synthesized at various values of temperature of calcination (Tcal). The results showed that MCE of NSMO samples depends strongly on Tcal, achieving that a conventional MCE for nanocrystalline NSMO samples. However, the thermomagnetic behavior of bulk NSMO sample NSMO contains both conventional MCE and inverse MCE. MCE of NSMO improves powerfully with increasing Tcal. The calcination process is concluded as a powerful tool for improving MCE for NSMO. Especially, NSMO parameters in MCE of some published works are better, with a value equal to or greater than the corresponding MCE parameters in the same value of ΔH. MCE of NSMO system, particularly for nitrogen and hydrogen liquefaction, covers an excellent temperature range is of interest for MR.

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