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Carbon-Carbon Recuperators in Closed-Brayton-Cycle Space Power SystemsThe feasibility of using carbon-carbon (C-C) recuperators in conceptual closed-Brayton-cycle space power conversion systems was assessed. Recuperator performance expectations were forecast based on notional thermodynamic cycle state values for potential planetary missions. Resulting thermal performance, mass and volume for plate-fin C-C recuperators were estimated and quantitatively compared with values for conventional offset-strip-fin metallic designs. Mass savings of 30 to 60 percent were projected for C-C recuperators with effectiveness greater than 0.9 and thermal loads from 25 to 1400 kWt. The smaller thermal loads corresponded with lower mass savings; however, 60 percent savings were forecast for all loads above 300 kWt. System-related material challenges and compatibility issues were also discussed.
Document ID
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Barrett, Michael J.
(NASA Glenn Research Center Cleveland, OH, United States)
Johnson, Paul K.
(Analex Corp. Brook Park, OH, United States)
Naples, Andrew G.
(Ohio Aerospace Inst. Brook Park, OH, United States)
Date Acquired
August 23, 2013
Publication Date
February 1, 2006
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
AIAA Paper 2004-5652
Meeting Information
Meeting: Second International Energy Conversion Engineering Conference
Location: Providence, RI
Country: United States
Start Date: August 16, 2004
End Date: August 19, 2004
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
OTHER: 22-973-80-10
Distribution Limits
Public Use Permitted.
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