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Overview of NASA Lewis Research Center free-piston Stirling engine activitiesA generic free-piston Stirling technology project is being conducted to develop technologies generic to both space power and terrestrial heat pump applications in a cooperative, cost-shared effort. The generic technology effort includes extensive parametric testing of a 1 kW free-piston Stirling engine (RE-1000), development of a free-piston Stirling performance computer code, design and fabrication under contract of a hydraulic output modification for RE-1000 engine tests, and a 1000-hour endurance test, under contract, of a 3 kWe free-piston Stirling/alternator engine. A newly initiated space power technology feasibility demonstration effort addresses the capability of scaling a free-piston Stirling/alternator system to about 25 kWe; developing thermodynamic cycle efficiency or equal to 70 percent of Carnot at temperature ratios in the order of 1.5 to 2.0; achieving a power conversion unit specific weight of 6 kg/kWe; operating with noncontacting gas bearings; and dynamically balancing the system. Planned engine and component design and test efforts are described.
Document ID
19840014444
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Slaby, J. G.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 4, 2013
Publication Date
January 1, 1984
Subject Category
Urban Technology And Transportation
Report/Patent Number
NASA-TM-83649
DOE/NASA/1005-2
E-2094
NAS 1.15:83649
Meeting Information
Meeting: Intersociety Energy Conversion Eng. Conf.
Start Date: August 19, 1984
End Date: August 24, 1984
Sponsors: SAE, AIChE, IEEE, ASME, AIAA, ANS, ACS
Accession Number
84N22512
Funding Number(s)
PROJECT: RTOP 506-55-62
CONTRACT_GRANT: DE-AI05-82OR-1005
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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