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Update on Extended Operation of Stirling Convertors in Thermal Vacuum at NASA Glenn Research CenterThe U.S. Department of Energy (DOE), Lockheed Martin Space Systems (LMSS), Infinia Corporation, and NASA Glenn Research Center (GRC) have been developing a Stirling Radioisotope Generator (SRG) for use as a power system on space science missions. This generator would make use of Stirling cycle energy conversion to achieve higher efficiency than currently used alternatives. A test has been initiated at GRC to demonstrate functionality of Stirling conversion in a thermal vacuum environment over an extended period of time. The test article resembles the configuration of the SRG, but was designed without the requirement of low mass. Throughout the 8700 cumulative hours of operation, modifications to the supporting hardware were required to attain the desired operating conditions. These modifications, the status of testing, and the data recorded will be discussed in this paper.
Document ID
Document Type
Technical Memorandum (TM)
Oriti, Salvatore M.
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
September 7, 2013
Publication Date
November 1, 2006
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
AIAA Paper-2006-4062
Meeting Information
Fourth International Energy Conversion Engineering Conference and Exhibit (IECEC)(San Diego, CA)
Funding Number(s)
WBS: WBS 138494.04.01.01
Distribution Limits
Work of the US Gov. Public Use Permitted.
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