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Analysis of regenerated single-shaft ceramic gas-turbine engines and resulting fuel economy in a compact carRanges in design and off-design operating conditions of an advanced gas turbine and their effects on fuel economy were analyzed. The assumed engine incorporated a single stage radial flow turbine and compressor with fixed geometry. Fuel economies were calculated over the composite driving cycle with gasoline as the fuel. At a constant turbine-inlet temperature, with a regenerator sized for a full power effectiveness the best fuel economies ranged from 11.1 to 10.2 km/liter (26.2 to 22.5 mpg) for full power turbine tip speeds of 770 to 488m/sec (2530 to 1600ft/sec), respectively.
Document ID
19770022663
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Klann, J. L.
(NASA Lewis Research Center Cleveland, OH, United States)
Tew, R. C., Jr.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 3, 2013
Publication Date
August 1, 1977
Subject Category
Energy Production And Conversion
Report/Patent Number
NASA-TM-X-3531
E-9103
Accession Number
77N29607
Funding Number(s)
PROJECT: RTOP 778-32
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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