Results 231 to 240 of about 1,605,377 (288)

Magnetic nanocomposites for magnetic refrigeration

Nanostructured Materials, 1993
Enhanced magnetocaloric effects have been predicted to occur in composite materials possessing magnetic species which have been reduced to nanometer-sized dimensions. Convincing experimental evidence is first presented here verifying these predictions. A new type of magnetic nanocomposite, one which is a single crystallographic phase, is also reported ...
R.D. Shull, R.D. McMichael, J.J. Ritter
openaire   +1 more source

GeoThermag: A geothermal magnetic refrigerator

International Journal of Refrigeration, 2015
Abstract Magnetic refrigeration has played an important role in the scientific landscape in recent years and could potentially be an alternative to vapour compression technology. Although new prototypes have recently been developed and new material refrigerants have been tested, there is still no equipment that can be used in the refrigeration ...
APREA, Ciro, Greco, Adriana, MAIORINO, ANGELO   +2 more
openaire   +3 more sources

New application of complex magnetic materials to the magnetic refrigerant in an Ericsson magnetic refrigerator

Journal of Applied Physics, 1987
A complex new magnetic refrigerant, suitable for the ideal Ericsson cycle, has been investigated. Above ∼15 K it is necessary to use ferromagnets as a magnetic refrigerant. However, temperature variation for the magnetic entropy change in a homogeneous ferromagnet is not suitable for the Ericsson cycle.
T. Hashimoto, T. Kuzuhara, M. Sahashi, K. Inomata, A. Tomokiyo, H. Yayama   +5 more
openaire   +1 more source

A new method of producing the magnetic refrigerant suitable for the ericsson magnetic refrigeration

IEEE Transactions on Magnetics, 1987
A layer structural complex magnetic refrigerant, which is suitable for the Ericsson cycle, satisfying the Carnot principle, has been investigated. Above ∼ 15 K, since the thermal agitation energy and the lattice entropy increase considerably, the ferromagnetic material has to be used for the refrigerant in the magnetic refrigeration.
T. Hashimoto, T. Kuzuhara, K. Matsumoto, M. Sahashi, K. Imonata, A. Tomokiyo, H. Yayama   +6 more
openaire   +1 more source

Thermodynamics of magnetic refrigeration

International Journal of Refrigeration, 2006
A comprehensive treatment of the thermodynamics of cyclic magnetic refrigeration processes is presented. It starts with a review of the work, heat and internal energy of a magnetized specimen in a magnetic field, and a list of the thermodynamic potentials is given. These are based on the very recent discovery of an alternative Kelvin force. It is shown
Andrej Kitanovski, Peter W. Egolf
openaire   +1 more source

Recent Investigations on Refrigerants for Magnetic Refrigerators

1986
In development of the magnetic refrigerator, an important problem is selection of magnetic materials as refrigerants. The main purpose of the present paper is to discuss the magnetic and thermal properties necessary for these refrigerants and to report recent investigations.
openaire   +1 more source

MAGNETIC REFRIGERATOR

Proceedings of the 26th International Congress of Mechanical Engineering, 2021
Edigar Botelho, Julio Tedesco, Lucas Venancio Pires de Carvalho Lima   +2 more
openaire   +1 more source

An Assessment of the Efficiency and Refrigeration Power of Magnetic Refrigerators with Ferromagnetic Refrigerants

1994
The demand for ways to reliably estimate the expected efficiency and power density of magnetic refrigerators led in past years to increasing efforts to develop computational models and numerical simulation of magnetic refrigeration processes. Such methods, in addition, provide a better understanding of the loss mechanisms in magnetic refrigerators and ...
openaire   +2 more sources

Magnetic Materials for Magnetic Refrigeration

Magnetocaloric materials serve as the cornerstone of magnetic refrigeration technology, which emerges as a compelling and globally sustainable alternative to conventional vapor-compression-based cooling systems. Unlike traditional methods that rely on mechanical compression, magnetic refrigeration operates through magnetization and demagnetization ...
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Magnetic refrigerator.

Journal of Heat Recovery Systems, 1986
NAKAGOME HIDEKI C O PATENT DIV, YASUDA SATOSHI C O PATENT DIVI   +1 more
openaire   +3 more sources