DocumentCode
851605
Title
Liquid metal current collectors for homopolar machines
Author
Johnson, J.L. ; Hummert, G.T. ; Keeton, A.R.
Author_Institution
Westinghouse Research Laboratories, Pittsburgh, PA
Volume
95
Issue
4
fYear
1976
fDate
7/1/1976 12:00:00 AM
Firstpage
1234
Lastpage
1243
Abstract
Results of theoretical and experimental studies of liquid metal current collectors, primarily for segmented-magnet (SEGMAG) drum-type homopolar generators, are presented. Current collectors evaluated are of the rotating disk-stationary concentric channel design The liquid metal is the eutectic sodium-potassium alloy (NaK-78). Power losses and disturbing pressures in the liquid metal were either analyzed or evaluated experimentally in terms of rotor speed, temperature, electric current, and magnetic field for prototypic size current collectors. Specific-contact resistance measurements made using these collectors are reported here.
Keywords
Conducting materials; Gallium alloys; Homopolar machines; Magnetic analysis; Magnetic confinement; Magnetic fields; Magnetic flux; Magnetic liquids; Magnetohydrodynamics; Superconducting magnets;
fLanguage
English
Journal_Title
Power Apparatus and Systems, IEEE Transactions on
Publisher
ieee
ISSN
0018-9510
Type
jour
DOI
10.1109/T-PAS.1976.32217
Filename
1601819
Link To Document