Hot flow testing of multiple nozzle exhaust eductor systems.
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Authors
Hill, James Allan
Subjects
hot flow model
multiple nozzle exhaust educator systems
multiple nozzle exhaust educator systems
Advisors
Pucci, Paul F.
Date of Issue
1979-09
Date
September 1979
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
Hot flow model tests of multiple nozzle gas turbine
exhaust eductor systems were conducted to evaluate the
temperature effects of several eductor design modifications.
A one-dimensional analysis of a simple eductor system based
on conservation of momentum for an incompressible gas was
used in determining the nondimensional parameters governing
the flow. Eductor performance is defined in terms of these
parameters. Compared to existing solid wall eductors, the
addition of film cooling slots in the mixing stack, a mixing
stack shroud and a double split ring diffuser section was
found to significantly improve the pumping coefficient of the
eductor, and drastically decrease all external surface temperatures
as well as moderately reduce the maximum gas discharge
temperature.
Type
Thesis
Description
Series/Report No
Department
Mechanical Engineering
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.