NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Improved Stirling engine performance using jet impingementOf the many factors influencing the performance of a Stirling engine, that of transferring the combustion gas heat into the working fluid is crucial. By utilizing the high heat transfer rates obtainable with a jet impingement heat transfer system, it is possible to reduce the flame temperature required for engine operation. Also, the required amount of heater tube surface area may be reduced, resulting in a decrease in the engine nonswept volume and a related increase in engine efficiency. A jet impingement heat transfer system was designed by Rasor Associates, Inc., and tested in the GPU-3 Stirling engine at the NASA Lewis Research Center. For a small penalty in pumping power (less than 0.5% of engine output) the jet impingement heat transfer system provided a higher combustion-gas-side heat transfer coefficient and a smoothing of heater temperature profiles resulting in lower combustion system temperatures and a 5 to 8% increase in engine power output and efficiency.
Document ID
19830046070
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Johnson, D. C.
(NASA Lewis Research Center Cleveland, OH, United States)
Britt, E. J.
(Rasor Associates, Inc. Sunnyvale, CA, United States)
Thieme, L. G.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Subject Category
Mechanical Engineering
Meeting Information
Meeting: IECEC ''82; Seventeenth Intersociety Energy Conversion Engineering Conference
Location: Los Angeles, CA
Start Date: August 8, 1982
End Date: August 12, 1982
Accession Number
83A27288
Funding Number(s)
CONTRACT_GRANT: DEN3-177
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available