Journal ArticleDOI
Magnetic heat pumps: An overview of design principles and challenges
Paulo V. Trevizoli,T.V. Christiaanse,Premakumara Govindappa,Iman Niknia,R. Teyber,Jader R. Barbosa,Andrew Rowe +6 more
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TLDR
In this article, the authors discuss some of the main challenges encountered in the literature and how design choices impact cooling power and work requirements from a system engineering perspective, and propose an extended design/optimization methodology based on entropy generation minimization with performance criteria.Abstract:
Active magnetic regeneration is one of the most promising alternative technologies for the development of heat pumps and cooling systems for applications around room temperature. In the open literature, numerous works can be found in which much effort has been put on the development of magnetocaloric materials, magnetic circuits and prototypes. In this article, the authors discuss some of the main challenges encountered in the literature and how design choices impact cooling power and work requirements from a system engineering perspective. First, based on a generic schematic representation of a magnetocaloric heat pump, or refrigerator, various problems and challenges found in the current state of the art are pointed out and discussed. Second, different design principles for magnetic heat pumps are examined. As a means to improving performance, an extended design/optimization methodology is proposed based on entropy generation minimization with performance criteria. Finally, some initial optimization res...read more
Citations
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Principles Of Enhanced Heat Transfer
TL;DR: The principles of enhanced heat transfer is universally compatible with any devices to read and is available in the book collection an online access to it is set as public so you can get it instantly.
Principles Of Heat Transfer In Porous Media
TL;DR: The principles of heat transfer in porous media is universally compatible with any devices to read and is available in the digital library an online access to it is set as public so you can get it instantly.
Journal ArticleDOI
Energy Applications of Magnetocaloric Materials
TL;DR: In this paper, the authors present 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.
References
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Journal ArticleDOI
Giant Magnetocaloric Effect in Gd 5 \(Si 2 Ge 2 \)
TL;DR: An extremely large magnetic entropy change has been discovered in magnetic materials when subjected to a change in the magnetic field as mentioned in this paper, which exceeds the reversible magnetocaloric effect in any known magnetic material by at least a factor of 2.
MonographDOI
Magnetism and Magnetic Materials
TL;DR: In this paper, the authors introduce magnetostatics and magnetism of localized electrons on the atom, and apply it to spin electronics and magnetic recording, as well as applications of hard magnets.
Journal ArticleDOI
Recent developments in magnetocaloric materials
TL;DR: The recent literature concerning the magnetocaloric effect (MCE) has been reviewed and correlations have been made comparing the behaviours of the different families of magnetic materials which exhibit large or unusual MCE values.
Book
Principles of heat transfer in porous media
TL;DR: In this article, the authors identify the principles of transport in porous media and compare the available predicted results, based on theoretical treatments of various transport mechanisms, with the existing experimental results, and the theoretical treatment is based on the volume-averaging of the momentum and energy equations with the closure conditions necessary for obtaining solutions.
MonographDOI
Fundamentals of heat exchanger design
Ramesh K. Shah,Dusan P. Sekulic +1 more
TL;DR: In this paper, the authors present a classification of Heat Exchanger design according to the number of fluids and their properties, such as surface heat transfer, flow arrangement, and number of transfer units.