Iron and manganese based magnetocaloric materials for near room temperature thermal management

Chaudhary, Varun; Chen, X.; Ramanujan, R.V.

doi:10.1016/j.pmatsci.2018.09.005

Cited by 122 publications

(46 citation statements)

References 230 publications

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“…The most recent and most comprehensive review of magnetocaloric materials can be found in the work of Franco et al Another very important article on the material selection criteria was recently published by Gottschall et al The latest review of manganese‐based magnetocaloric materials was presented by Chaudhary et al, while another interesting publication was authored by Lyubina, who reviewed magnetocaloric materials with an adiabatic temperature change rate of higher than 2 K T –1 . Some older reviews are also available in the literature …”

Section: Magnetocaloric Refrigeration and Heat Pumpingmentioning

confidence: 99%

Energy Applications of Magnetocaloric Materials

Kitanovski

2020

Advanced Energy Materials

355

156

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The need for energy‐efficient and environmentally friendly refrigeration, heat pumping, air conditioning, and thermal energy harvesting systems is currently more urgent than ever. Magnetocaloric energy conversion is among the best available alternatives for achieving these technological goals and has been the subject of substantial basic and applied research over the last two decades. The subject is strongly interdisciplinary, requiring proper understanding and efficient integration of knowledge in different specialized fields. This review article presents a historical and up‐to‐date account of the energy‐related applications of magnetocaloric materials and information about their processing and magnetic fields, thermodynamics, heat transfer, and other relevant characteristics. The article also discusses the conceptual design of magnetocaloric refrigeration and power generation systems and some guidelines for future research in the field.

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Section: Magnetocaloric Refrigeration and Heat Pumpingmentioning

confidence: 99%

Energy Applications of Magnetocaloric Materials

Kitanovski

2020

Advanced Energy Materials

355

156

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“…(Sigma Aldrich offers Gd 5 Si 2 Ge 2 powder and ingots (https://www.sigmaaldrich.com/technicaldocuments/articles/materials-science/metal-and-ceramic-science/magnetocaloric-materials.html); however, the price is a factor of 20-40 higher compared to0 La-Fe-Si from Vacuumschmelze (Sigma Aldrich price list from 4 October 2018).) An overview of recent material developments can be found in [4,[19][20][21]. In order to shape these materials into plates for regenerator beds, several attempts have been presented in recent publications, e.g., in [22][23][24][25].…”

Section: Production Of Epoxy-bonded Lafesimn-based Plates By Tape Casmentioning

confidence: 99%

A Magnetocaloric Booster Unit for Energy-Efficient Air-Conditioning

et al. 2019

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A concept for the application of a magnetocaloric device in energy-efficient air conditioners is introduced. In order to evaluate this concept, a test stand has been developed equipped with a magnetic field source providing about a 1.5-T flux density change into which different regenerator geometries can be implemented and evaluated. A processing route for the production of profiled magnetocaloric LaFeSiMn-based composite plates by tape casting is presented. The processed plates show a maximum isothermal entropy change of about 3.8 J kg - 1 K - 1 at a magnetic field change of 1.5 T at 285 K. The hydraulic and thermal performance of regenerator geometries that can be realized by profiled plates is assessed by calculations.

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“…Magnetic refrigeration is much more efficient than traditional refrigeration without the use of harmful substances, it can potentially reach 60% of the cycle Carnot efficiency against about 40% of gas compression cycles [4]. This paper proposes a review of the different aspects concerning this technology, and performs a detailed analysis of thermodynamic cycles, using mathematical models found in the literature.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Thermodynamic Cycles of Heat Pumps and Magnetic Refrigerators Using Mathematical Models

2021

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This paper proposes a critical review of the different aspects concerning magnetic refrigeration systems, and performs a detailed analysis of thermodynamic cycles, using mathematical models found in the literature. Langevin’s statistical mechanical theory faithfully describes the physical operation of a refrigeration machine working according to a magnetic Ericsson cycle. Results of mathematical and real experimental models are compared to deduce which best describes the Ericsson cycle. The theoretical data are not perfectly consistent with the experimental data; there is a maximum deviation of about 30%. Numerical and experimental data confirm that very high Coefficient of Performance (COP) values of more than 20 can be achieved. The analysis of the Brayton cycle consisted of finding the mathematical model that considers the irreversibility of these machines. Starting from the thermodynamic properties of magnetocaloric materials based on statistical mechanics, the efficiency of an irreversible Brayton regenerative magnetic refrigeration cycle is studied. Considering the irreversibility in adiabatic transformations, the lower limit of the optimal ratio of two magnetic fields is determined, obtaining a valid optimization criterion for these machines operating according to a Brayton cycle. The results show that the Ericsson cycle achieves a higher Coefficient of Performance than the Brayton cycle, which has a higher cooling capacity as it operates with a larger temperature difference between the magnetocaloric material and source.

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Iron and manganese based magnetocaloric materials for near room temperature thermal management

Cited by 122 publications

References 230 publications

Energy Applications of Magnetocaloric Materials

Energy Applications of Magnetocaloric Materials

A Magnetocaloric Booster Unit for Energy-Efficient Air-Conditioning

Analysis of Thermodynamic Cycles of Heat Pumps and Magnetic Refrigerators Using Mathematical Models

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