Results 21 to 30 of about 1,605,377 (288)

Magnetic refrigeration: analysis located electron model

Revista Facultad de Ingeniería Universidad de Antioquia, 2005
Magnetic refrigeration is a technology with great commercial potential. Energy consumption and environmental impact associated with this technology are lower than those from conventional refrigeration systems. This paper presents the main aspects of the
John Jairo Hoyos Quintero, Juan Esteban Velásquez, Farid Chejne Janna, Alan Francis Hill Betancourt   +3 more
doaj   +1 more source

Sublattice-Resolved Magnetoelastic Coupling and Opposing Pressure Responses in the Frustrated Magnetocaloric GdMn₂O₅. [PDF]

Adv Sci (Weinh)
In GdMn2O5, sublattice‐resolved EXAFS and diffraction analysis reveal pronounced spin‐phonon coupling and an unexpected opposing pressure response: the Mn‐driven Néel temperature slightly decreases while the Gd‐sublattice ordering temperature rises under pressures up to 0.86 GPa.
Silva RS, Rodrigues JE, Gainza J, Andersen HL, Serrano-Sánchez F, Biskup N, Mathon O, Nemes NM, Martínez JL, Alonso JA.   +9 more
europepmc   +2 more sources

Magnetic refrigeration down to 1.6 K for the future circular collider e^{+}e^{-}

Physical Review Accelerators and Beams, 2017
High-field superconducting rf cavities of the future circular collider e^{+}e^{-} may require a kW-range superfluid helium refrigeration down to 1.6 K. Magnetic refrigeration operating below 4.2 K can be an alternative to the compression/expansion helium
Jakub Tkaczuk, François Millet, Jean-Marc Duval, Bernard Rousset   +3 more
doaj   +1 more source

Magnetocaloric Effect of Two Gd-Based Frameworks

Inorganics, 2022
Magnetic refrigeration material is the key to adiabatic demagnetization refrigeration technology. In this work, two magnetic refrigerants, Gd5(C4O4)(HCOO)3(CO3)2(OH)6·2.5H2O (1) and Gd2(OH)4SO4 (2), were prepared through hydrothermal reaction.
Bo-Liang Liu, Qiao-Fei Xu, La-Sheng Long, Lan-Sun Zheng   +3 more
doaj   +1 more source

An optimized magnet for magnetic refrigeration [PDF]

Journal of Magnetism and Magnetic Materials, 2010
A magnet designed for use in a magnetic refrigeration device is presented. The magnet is designed by applying two general schemes for improving a magnet design to a concentric Halbach cylinder magnet design and dimensioning and segmenting this design in an optimum way followed by the construction of the actual magnet.
Bjørk, Rasmus; id_orcid 0000-0002-3728-2326, Bahl, Christian Robert Haffenden; id_orcid 0000-0002-1153-7183, Smith, Anders; id_orcid 0000-0003-2723-8812, Christensen, Dennis; id_orcid 0000-0003-0048-7595, Pryds, Nini; id_orcid 0000-0002-5718-7924   +4 more
openaire   +3 more sources

Mathematical Modelling of Active Magnetic Regenerator Refrigeration System for Design Considerations

Energies, 2020
A magnetic refrigeration system has the potential to alternate the compression system with respect to environmental compatibility. Refrigeration systems currently operate on the basis of the expansion and compression processes, while active magnetic ...
Aref Effatpisheh, Amir Vadiee, Behzad A. Monfared   +2 more
doaj   +1 more source

Material requirements for magnetic refrigeration applications

, 2018
A primary motivation underlying the research on room-temperature magnetic refrigeration is reaching energy efficiency levels beyond what is achievable with vapor-compression technology.
Palm, Björn,, Palm, Björn, Monfared, Behzad, Monfared, Behzad,   +3 more
core   +1 more source

Cold production from magnetic fields. Part II: Thermodynamic analysis

Revista Facultad de Ingeniería Universidad de Antioquia, 2003
In magnetic refrigeration a magnetic material undergoes temperature changes or heat interchanges with the environment when it is placed in a strong magnetic field. In this paper, a conventional cycle for magnetic refrigeration is analyzed.
Juan Esteban Velásquez, Farid Chejne, Allan F. J. Hill   +2 more
doaj   +1 more source

Magnetocaloric effect in bamboo-grained Ni-Mn-Ga microwires over a wide working temperature interval

Materials & Design, 2020
Bamboo-grained Ni-Mn-Ga microwire is promising for achieving considerable magnetic-field-induced strain due to less neighboring grain constraints to the twin boundary motion.
M.F. Qian, X.X. Zhang, X. Li, R.C. Zhang, P.G. Martin, J.F. Sun, L. Geng, T.B. Scott, H.X. Peng   +8 more
doaj   +1 more source

Rotary magnetic regenerator design and assembly

, 2016
Magnetic refrigeration is an emerging technology that exploits a particular feature of some materials, called "magneto caloric effect" to obtain a cooling effect.
Gigante M., Scarpa F., Tagliafico L. A.
core   +1 more source