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Monday, April 20, 2020 | History

2 edition of Magnetic refrigerator development found in the catalog.

Magnetic refrigerator development

Los Alamos Scientific Laboratory

Magnetic refrigerator development

  • 64 Want to read
  • 30 Currently reading

Published by Dept. of Energy, Los Alamos Scientific Laboratory, for sale by the National Technical Information Service in Los Alamos, N.M, Springfield, Va .
Written in English

    Subjects:
  • Refrigeration and refrigerating machinery

  • Edition Notes

    SeriesLA ; 7564-PR, LA ; 7781-PR
    ContributionsBarclay, John A., 1942-, Steyert, W. A, Zrudsky, D. R, United States. Dept. of Energy, Electric Power Research Institute
    The Physical Object
    Paginationv. :
    ID Numbers
    Open LibraryOL14880082M


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Magnetic refrigerator development by Los Alamos Scientific Laboratory Download PDF EPUB FB2

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New Developments in Magnetic Refrigeration. Edited by P.W. Egolf, A. Tishin, H. Auracher. Vol select article Development and experimental results from a 1 kW prototype AMR.

of multi-layered La–Fe–Co–Si and single-layered Gd active magnetic regenerators for use in a room-temperature magnetic refrigerator. Magnetic refrigeration: an eco-friendly technology for the refrigeration at room temperature. C Aprea 1, A Greco 2, A Maiorino 1 and C Masselli 1.

Published under licence by IOP Publishing Ltd Journal of Physics: Conference Series, Volumeconference 1Cited by: Abstract.

Magnetic refrigeration uses the temperature- and field-dependence of the entropy of some magnetic materials to accomplish cooling. Because of the intrinsically high efficiency of the magnetization and demagnetization process and because of the potential for excellent heat transfer between solids and fluids, magnetic refrigerators promise to have higher efficiency.

As the material leaves the magnetic field, it cools further. While the material is out of the field, a stream of water is cooled by the material and circulated through the refrigerator's cold heat exchanger, removing heat from the object to be cooled. Aeronautics is not the only company committed to the development of magnetic refrigeration.

To initiate development of the low-temperature refrigerator technology, a gadolinium-metal, magnetic-wheel prototype was designed, built, and tested at room temperature with the objective of understanding the device in an experimentally convenient temperature region.

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Development of a small helium refrigerator with high reliability and high efficiency is needed for progress in superconductive device applications.

Keywords Heat Pipe Gaseous Helium Pulse Magnet Magnetic Refrigeration Copper PipeCited by: The refrigerator is such an important component of modern life that it is hard to imagine what the world was like without it.

Before mechanical refrigeration systems were introduced, people had to cool their food using ice and snow, either found locally or brought down from the : Mary Bellis. Abstract. 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 Cited by: Refrigerator magnets are a fairly recent development in the life of the American kitchen; a patent for a magnetic "holder of paper or the like" was issued in Magnets have since become a.

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The magnetization of a magnetic material is affected by strength and direction of. Hundreds of millions of dollars are spent annually on magnetic containment of fusion as a future energy source.

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Using materials developed at the U.S. Department of Energy's Ames Laboratory, researchers have successfully demonstrated the world's first room temperature, permanent-magnet, magnetic refrigerator.

The refrigerator was developed by Milwaukee-based Astronautics Corporation of America as part of a cooperative research and development agreement. Product - Best Choice Products Piece Clear Multi Colors Magnetic Tiles Educational STEM Toy Building Set w/ Car & Carrying Bag.

List price $ Best Choice Products Piece Clear Multi Colors Magnetic Tiles Educational STEM Toy Building Set w/ Car & Carrying Bag. There is a problem adding to cart. Please try again. The most familiar magnets are permanent magnets like the ones on a refrigerator door.

However, for applications in transformers and motors, soft magnets that can rapidly switch their magnetization in response to a magnetic field are used.

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The magnetic field exerts a force on a current-carrying wire in a direction given by the right hand rule 1 (the same direction as that on the individual moving charges). This force can easily be large enough to move the wire, since typical currents consist of very large numbers of moving charges.

Magnetocaloric coolers are based on the thermodynamic effect, which shows that “the temperature of a material can be changed by exposing it to a magnetic field,” explained journalist Michael Irving in New Atlas. These fridges cool by exposing an alloy to a magnetic field—certain alloys will heat up or cool down when this happens.

The Carnot cycle is of special importance for a variety of reasons. At a practical level, this cycle represents a reversible model for the steam power plant and the refrigerator or heat pump.

Yet, it is also very important theoretically, for it plays a major role in the development of another important statement of the second law of thermodynamics.

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are thus named the north magnetic pole and the south magnetic pole (or more properly, north-seeking and south-seeking poles, for the attractions in those directions). Universal Characteristics of Magnets and Magnetic Poles It is a universal characteristic of all magnets that like poles repel and unlike poles attract.

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