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Method for Making Measurements of the Post-Combustion Residence Time in a Gas Turbine Engine

Author
Miles, Jeffrey H
Published
May 19, 2015.
Physical Description
1 electronic document
Online Version

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Summary
A system and method of measuring a residence time in a gas-turbine engine is provided, whereby the method includes placing pressure sensors at a combustor entrance and at a turbine exit of the gas-turbine engine and measuring a combustor pressure at the combustor entrance and a turbine exit pressure at the turbine exit. The method further includes computing cross-spectrum functions between a combustor pressure sensor signal from the measured combustor pressure and a turbine exit pressure sensor signal from the measured turbine exit pressure, applying a linear curve fit to the cross-spectrum functions, and computing a post-combustion residence time from the linear curve fit.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 20150009352.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15413767