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Magnetically Diffused Radial Electric-Arc Air Heater Employing Water-Cooled Copper ElectrodesA magnetically rotated electric-arc air heater has been developed that is novel in that an intense magnetic field of the order of 10,000 to 25,000 gauss is employed. This field is supplied by a coil that is connected in series with the arc. Experimentation with this heater has shown that the presence of an intense magnetic field transverse to the arc results in diffusion of the arc and that the arc has a positive effective resistance. With the field coil in series with the arc, highly stable arc operation is obtained from a battery power supply. External ballast is not required to stabilize the arc when it is operating at maximum power level. The electrode erosion rate is so low that the airstream contamination is no more than 0.07 percent and may be substantially less.
Document ID
19620002546
Acquisition Source
Headquarters
Document Type
Other
Authors
Mayo, R. F.
(NASA Langley Research Center Hampton, VA, United States)
Davis, D. D., Jr.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 1, 2013
Publication Date
January 1, 1962
Subject Category
Machine Elements And Processes
Accession Number
62N12546
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
COPPER
ELECTRIC ARC
ELECTRODE
AIR
HEATER
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