NTRS - NASA Technical Reports Server

Back to Results
Demagnetization Tests Performed on a Linear Alternator for a Stirling Power ConvertorDemagnetization temperature of a linear alternator (LA) can be accurately predicted through an analytical Maxwell model. The M-H characteristics of the alternator magnets must be known. Vendor data are given for cube-shaped magnets, and the shape of a LA magnet may affect its magnetic properties. At GRC, M-H data are directly measured for each LA magnet. This method was validated using TDC alternator tests on the Alternator Test Rig. The analytical Maxwell modeling was utilized on a different style linear alternator to predict demagnetization temperatures for the Advanced Stirling Convertor.
Document ID
Document Type
Geng, Steven M.
(NASA Glenn Research Center Cleveland, OH, United States)
Niedra, Janis M.
(ASRC Aerospace Corp. Cleveland, OH, United States)
Schwarze, Gene E.
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 25, 2013
Publication Date
July 31, 2011
Subject Category
Fluid Mechanics And Thermodynamics
Report/Patent Number
Meeting Information
International Energy Conversion Engineering Conference (IECEC) 2011(San Diego, CA)
Funding Number(s)
WBS: WBS 138494.
Distribution Limits
Public Use Permitted.
No Preview Available