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Performance Measurement of Advanced Stirling Convertors (ASC-E3)NASA Glenn Research Center (GRC) has been supporting development of the Advanced Stirling Radioisotope Generator (ASRG) since 2006. A key element of the ASRG project is providing life, reliability, and performance testing data of the Advanced Stirling Convertor (ASC). The latest version of the ASC (ASC-E3, to represent the third cycle of engineering model test hardware) is of a design identical to the forthcoming flight convertors. For this generation of hardware, a joint Sunpower and GRC effort was initiated to improve and standardize the test support hardware. After this effort was completed, the first pair of ASC-E3 units was produced by Sunpower and then delivered to GRC in December 2012. GRC has begun operation of these units. This process included performance verification, which examined the data from various tests to validate the convertor performance to the product specification. Other tests included detailed performance mapping that encompassed the wide range of operating conditions that will exist during a mission. These convertors were then transferred to Lockheed Martin for controller checkout testing. The results of this latest convertor performance verification activity are summarized here.
Document ID
Document Type
Technical Memorandum (TM)
Oriti, Salvatore M.
(NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
September 9, 2014
Publication Date
December 1, 2013
Subject Category
Report/Patent Number
AIAA Paper 2013-3813
Meeting Information
International Energy Conversion Engineering Conference (IECEC)(San Jose, CA)
Funding Number(s)
WBS: WBS 138494.01.99.01
Distribution Limits
Work of the US Gov. Public Use Permitted.
Stirling Cycle
Radioisotope Heat Sources
Performance Tests
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