Magnetic Refrigeration: A Large Cooling Power Cryogenic Refrigeration Technology

1991 ◽  
pp. 27-41
Author(s):  
Stephen F. Kral ◽  
John A. Barclay
Keyword(s):  
Magnetic Refrigeration ◽  
Cooling Power

Numerical Simulation of Magnetic Cooling Cycles

2012 ◽  
Vol 190 ◽  
pp. 319-322
Author(s):  
Konstantin Skokov ◽  
Alexey Karpenkov ◽  
Yury G. Pastushenkov ◽  
Oliver Gutfleisch
Keyword(s):  
Numerical Simulation ◽  
Room Temperature ◽  
Magnetic Refrigeration ◽  
Cooling Power ◽  
Theoretical Limit ◽  
Magnetic Cooling

A model for Brayton cooling cycles used in magnetic refrigeration near room temperature was developed. This model was used to calculate a theoretical limit of temperature span and cooling power. The cooling power was calculated for single and double Brayton cooling cycles with Gd as the working body. The obtained results clearly demonstrate the functional ranges of Bryton-cycle refrigerators.

scholarly journals Magnetic and magnetocaloric properties of iron substituted holmium chromite and dysprosium chromite

RSC Advances ◽  
2016 ◽  
Vol 6 (12) ◽  
pp. 9475-9483 ◽  
Author(s):  
Shiqi Yin ◽  
Vinit Sharma ◽  
Austin McDannald ◽  
Fernando A. Reboredo ◽  
Menka Jain
Keyword(s):  
Magnetic Refrigeration ◽  
Relative Cooling Power ◽  
Cooling Power ◽  
Magnetocaloric Properties

Pure and Fe-doped HoCrO3 and DyCrO3 powders were examined for the magnetocaloric properties with promising relative cooling power (RCP) values indicating their potential for applications in magnetic refrigeration.

Mechanism of broadened phase transition temperature range in LaFeCoSiC compounds prepared upon high-pressure annealing

2020 ◽  
Vol 91 (1) ◽  
pp. 10601
Author(s):  
Zhengming Zhang
Keyword(s):  
Phase Transition ◽  
High Pressure ◽  
Transition Temperature ◽  
Phase Transition Temperature ◽  
Order Phase Transition ◽  
Magnetic Transition ◽  
Magnetic Refrigeration ◽  
Annealed Sample ◽  
Cooling Power ◽  
Temperature Range

The cobalt-carbon co-doped NaZn13-type compound LaFe10.95Co0.65Si1.4C0.15 (LFCSC) is one of the most promising candidates for room-temperature working substance in magnetic refrigerator due to its many excellent properties such as large reversible entropy, low cost, and short annealing time. However, owing to the narrow temperature regions of magnetic phase transition in LFCSC, the operation-temperature window for magnetic refrigeration is limited, which restricts its actual application to some extends. In this paper, it is shown that the application of high-pressure to LFCSC during annealing can tailor atomic environment and magnetic transition, which leads to a strongly expanded phase transition temperature range in LFCSC. This broadening behavior can be well understood by importing the magnetoelastic interaction of localized magnetic moments into a microscopic model. The refrigeration performance of the high-pressure annealed sample with wide phase transition temperature range is enhanced according to the relative cooling power (RCP). On the contrary, temperature averaged entropy change (TEC) exhibits a weakened value in the high-pressure annealed sample, which suggests that the magnetic cooling performance could not be effectively improved by simply expanding the phase transition temperature range in the second-order phase transition materials. However, high-pressure annealing would be helpful to the magnetic refrigeration performance for the first-order phase transition materials.

scholarly journals Impact of synthesis route on structural, magnetic, magnetocaloric and critical behavior of Nd0.6Sr0.4MnO3 manganite

RSC Advances ◽  
2021 ◽  
Vol 11 (13) ◽  
pp. 7238-7250
Author(s):  
M. Jeddi ◽  
J. Massoudi ◽  
H. Gharsallah ◽  
Sameh I. Ahmed ◽  
E. Dhahri ◽  
...  
Keyword(s):  
Critical Behavior ◽  
Room Temperature ◽  
Magnetic Refrigeration ◽  
Relative Cooling Power ◽  
Cooling Power ◽  
Synthesis Route

The relative cooling power is around 95.271 J kg−1 for NSMO-AC and 202.054 J kg−1 for NSMO-SG at μ0H = 5 T, making these materials potential candidates for magnetic refrigeration application near room temperature.

Complex Metallic Alloys for Applications in Magnetic Refrigeration

2015 ◽  
Vol 8 (2) ◽  
pp. 129-154
Author(s):  
Benjamin Podmiljsak ◽  
Paul J. McGuiness ◽  
Spomenka Kobe
Keyword(s):  
Magnetic Refrigeration ◽  
Metallic Alloys ◽  
Complex Metallic Alloys
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