NTRS - NASA Technical Reports Server

Back to Results
Performance of a Kilowatt-Class Stirling Power Conversion System in a Thermodynamically Coupled ConfigurationA pair of 1-kWe free-piston Stirling power convertors has been modified into a thermodynamically coupled configuration, and performance map testing has been completed. This is the same configuration planned for the full-scale 12-kWe power conversion unit (PCU) that will be used in the Fission Power System Technology Demonstration Unit (TDU). The 1-kWe convertors were operated over a range of conditions to evaluate the effects of thermodynamic coupling on convertor performance and to identify any possible control challenges. The thermodynamically coupled convertor showed no measureable difference in performance from the baseline data collected when the engines were separate, and no major control issues were encountered during operation. The results of this test are guiding controller development and instrumentation selection for the TDU.
Document ID
Document Type
Technical Memorandum (TM)
Geng, Steven M.
(NASA Glenn Research Center Cleveland, OH, United States)
Briggs, Maxwell H.
(NASA Glenn Research Center Cleveland, OH, United States)
Hervol, David S.
(QinetiQ North America Cleveland, OH, United States)
Date Acquired
August 25, 2013
Publication Date
September 1, 2011
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
Meeting Information
Nuclear and Emerging Technologies for Space (NETS-2011)(Albuquerque, NM)
Funding Number(s)
WBS: WBS 463169.
Distribution Limits
Public Use Permitted.
No Preview Available