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Parametric System Model for a Stirling Radioisotope GeneratorA Parametric System Model (PSM) was created in order to explore conceptual designs, the impact of component changes and power level on the performance of the Stirling Radioisotope Generator (SRG). Using the General Purpose Heat Source (GPHS approximately 250 Wth) modules as the thermal building block from which a SRG is conceptualized, trade studies are performed to understand the importance of individual component scaling on isotope usage. Mathematical relationships based on heat and power throughput, temperature, mass, and volume were developed for each of the required subsystems. The PSM uses these relationships to perform component- and system-level trades.
Document ID
20150011441
Acquisition Source
Glenn Research Center
Document Type
Contractor Report (CR)
Authors
Schmitz, Paul C. (Vantage Partners, LLC Brook Park, OH, United States)
Date Acquired
June 23, 2015
Publication Date
March 1, 2015
Subject Category
Energy Production And Conversion
Report/Patent Number
NASA/CR-2015-218450
GRC-E-DAA-TN17296
E-19021
Meeting Information
Meeting: AIAA/ASME/SAE/ASEE Joint Propulsion Conference
Location: Cleveland, Ohio
Country: United States
Start Date: July 28, 2014
End Date: July 30, 2014
Sponsors: American Society of Mechanical Engineers, Society of Automotive Engineers, Inc., American Inst. of Aeronautics and Astronautics, American Society for Electrical Engineers
Funding Number(s)
CONTRACT_GRANT: NNC12BA01B
WBS: WBS 138494.01.99.01
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
Heat Transfer
Modules
Stirling Cycle

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