Testing of the Advanced Stirling Radioisotope Generator Engineering Unit at NASA Glenn Research Center | Zendy

Edward J. Lewandowski | Zendy

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Testing of the Advanced Stirling Radioisotope Generator Engineering Unit at NASA Glenn Research Center

Author(s) -

Edward J. Lewandowski

Publication year - 2012

Publication title -

7th international energy conversion engineering conference

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2012-4253

Subject(s) - stirling engine , generator (circuit theory) , stirling cycle , center (category theory) , research center , nuclear engineering , engineering , aerospace engineering , electrical engineering , computer science , mechanical engineering , physics , medicine , power (physics) , chemistry , quantum mechanics , pathology , crystallography

The 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.

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