Test Rack Development for Extended Operation of Advanced Stirling Convertors at NASA Glenn Research Center

Dugala, Gina M.

doi:10.2514/6.2009-4554

Cited by 5 publications

(2 citation statements)

References 4 publications

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“…5 of Ref. 8). A number of dynamic simulations were run, and the results showed that, for example, a particular change in amplitude and power observed in the test data was consistent with a 35-mΩ change in impedance between the power meter and the load resistor.…”

Section: Components and Connections In The Alternator Load Circuitmentioning

confidence: 99%

Design of a Facility to Test the Advanced Stirling Radioisotope Generator Engineering Unit

Lewandowski

Schreiber

Oriti

et al. 2009

7th International Energy Conversion Engineering Conference

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Section: Components and Connections In The Alternator Load Circuitmentioning

confidence: 99%

Design of a Facility to Test the Advanced Stirling Radioisotope Generator Engineering Unit

Lewandowski

Schreiber

Oriti

et al. 2009

7th International Energy Conversion Engineering Conference

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“…6) was designed and built to support these tests. The data system utilizes National Instruments LabVIEW-based data acquisition hardware and software to acquire data and monitor the test.…”

Section: Integration Testingmentioning

confidence: 99%

The Small Radioisotope Power System at NASA Glenn Research Center

Dugala

Fraeman

Frankford

et al. 2011

9th Annual International Energy Conversion Engineering Conference

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Stirling Convertor Extended Operation Testing and Data Analysis at GRC

Cornell

Lewandowski

Oriti

et al. 2009

7th International Energy Conversion Engineering Conference

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This paper focuses on extended operation testing and data analysis of free-piston Stirling convertors at the NASA Glenn Research Center (GRC). Extended operation testing is essential to the development of radioisotope power systems and their potential use for long duration missions. To document the reliability of the convertors, regular monitoring and analysis of the extended operation data is particularly valuable; allowing us to better understand and quantitY the long life characteristics of the convertors. Further, investigation and comparison of the extended operation data to baseline performance data provides us an opportnnity for understanding system behavior should any off-nominal performance occur. GRC currently has 14 Stirling convertors under 24-hour unattended extended operation testing, including two operating the Advanced Stirling Radioisotope Generator Engineering Unit (ASRG-EU). 10 of the 14 Stirling convertors at GRC are the Advanced Stirling Convertors (ASC) developed by Sunpower, Incorporated. These are highly efficient (up to > 33.5% conversion efficiency), low mass convertors that have evolved through technologically progressive convertor builds. The remaining four convertors at GRC are Technology Demonstration Convertors (TDC) from Infinia Corporation. They have achieved> 27% conversion efficiency and have accumulated over 178,000 of the total 250,622 hours of extended operation currently at GRC. A synopsis of the Stirling convertor extended operation testing and data analysis at NASA GRC is presented in this paper, as well as how this testing has contributed to the Stirling convertor's progression toward flight.https://ntrs.nasa.gov/search

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Test Rack Development for Extended Operation of Advanced Stirling Convertors at NASA Glenn Research Center

Cited by 5 publications

References 4 publications

Design of a Facility to Test the Advanced Stirling Radioisotope Generator Engineering Unit

Design of a Facility to Test the Advanced Stirling Radioisotope Generator Engineering Unit

The Small Radioisotope Power System at NASA Glenn Research Center

Stirling Convertor Extended Operation Testing and Data Analysis at GRC

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