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Design of a pool boiler heat transport system for a 25 kWe advanced Stirling conversion systemThe overall operating temperature and efficiency of solar-powered Stirling engines can be improved by adding a heat transport system to more uniformly supply heat to the heater head tubes. One heat transport system with favorable characteristics is an alkali metal pool boiler. An alkali metal pool boiler heat transport system was designed for a 25-kW advanced Stirling conversion system (ASCS). Solar energy concentrated on the absorber dome boils a eutectic mixture of sodium and potassium. The alkali metal vapors condense on the heater head tubes, supplying the Stirling engine with a uniform heat flux at a constant temperature. Boiling stability is achieved with the use of an enhanced boiling surface and noncondensible gas.
Document ID
19920068178
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Anderson, W. G. (NASA Lewis Research Center Cleveland, OH, United States)
Rosenfeld, J. H. (Thermacore, Inc. Lancaster, PA, United States)
Noble, J. (Stirling Technologies Co. Richland, WA, United States)
Kesseli, J. (Kesseli Associates Mount Vernon, NH, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Fluid Mechanics And Heat Transfer
Meeting Information
Meeting: IECEC ''91: Intersociety Energy Conversion Engineering Conference
Location: Boston, MA
Country: United States
Start Date: August 4, 1991
End Date: August 9, 1991
Accession Number
92A50802
Funding Number(s)
CONTRACT_GRANT: DEN3-377
Distribution Limits
Public
Copyright
Other

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