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Testing of the Advanced Stirling Radioisotope Generator Engineering Unit at NASA Glenn Research CenterThe Advanced Stirling Radioisotope Generator (ASRG) is a high-efficiency generator being developed for potential use on a Discovery 12 space mission. Lockheed Martin designed and fabricated the ASRG Engineering Unit (EU) under contract to the Department of Energy. This unit was delivered to NASA Glenn Research Center in 2008 and has been undergoing extended operation testing to generate long-term performance data for an integrated system. It has also been used for tests to characterize generator operation while varying control parameters and system inputs, both when controlled with an alternating current (AC) bus and with a digital controller. The ASRG EU currently has over 27,000 hours of operation. This paper summarizes all of the tests that have been conducted on the ASRG EU over the past 3 years and provides an overview of the test results and what was learned.
Document ID
Document Type
Technical Memorandum (TM)
Lewandowski, Edward J.
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
April 28, 2014
Publication Date
November 1, 2013
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
AIAA Paper 2012-4253
Meeting Information
International Energy Conversion Engineering Conference (IECEC)(Atlanta, GA)
Funding Number(s)
WBS: WBS 138494.01.99.01
Distribution Limits
Work of the US Gov. Public Use Permitted.
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