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Supporting Technology at GRC to Mitigate Risk as Stirling Power Conversion Transitions to FlightStirling power conversion technology has been reaching more advanced levels of maturity during its development for space power applications. The current effort is in support of the Advanced Stirling Radioisotope Generator (ASRG), which is being developed by the U.S. Department of Energy (DOE), Lockheed Martin Space Systems Company (LMSSC), Sunpower Inc., and the NASA Glenn Research Center (GRC). This generator would use two high-efficiency Advanced Stirling Convertors (ASCs) to convert thermal energy from a radioisotope heat source into electricity. Of paramount importance is the reliability of the power system and as a part of this, the Stirling power convertors. GRC has established a supporting technology effort with tasks in the areas of reliability, convertor testing, high-temperature materials, structures, advanced analysis, organics, and permanent magnets. The project utilizes the matrix system at GRC to make use of resident experts in each of the aforementioned fields. Each task is intended to reduce risk and enhance reliability of the convertor as this technology transitions toward flight status. This paper will provide an overview of each task, outline the recent efforts and accomplishments, and show how they mitigate risk and impact the reliability of the ASC s and ultimately, the ASRG.
Document ID
Document Type
Technical Memorandum (TM)
Schreiber, Jeffrey G.
(NASA Glenn Research Center Cleveland, OH, United States)
Thieme, Lanny G.
(NASA Glenn Research Center Cleveland, OH, United States)
Wong, Wayne A.
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 24, 2013
Publication Date
April 1, 2009
Subject Category
Energy Production And Conversion
Report/Patent Number
AIAA Paper 2008-5790
Meeting Information
Sixth International Energy Conversion Engineering Conference (IECEC)(Cleveland, OH)
Funding Number(s)
WBS: WBS 138494.04.01.01
Distribution Limits
Work of the US Gov. Public Use Permitted.
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