Method and apparatus for detecting combustion instability in continuous combustion systems
Abstract
An apparatus and method to sense the onset of combustion stability is presented. An electrode is positioned in a turbine combustion chamber such that the electrode is exposed to gases in the combustion chamber. A control module applies a voltage potential to the electrode and detects a combustion ionization signal and determines if there is an oscillation in the combustion ionization signal indicative of the occurrence of combustion stability or the onset of combustion instability. A second electrode held in a coplanar but spaced apart manner by an insulating member from the electrode provides a combustion ionization signal to the control module when the first electrode fails. The control module broadcasts a notice if the parameters indicate the combustion process is at the onset of combustion instability or broadcasts an alarm signal if the parameters indicate the combustion process is unstable.
- Inventors:
- Issue Date:
- Research Org.:
- Woodward Governor Company, Fort Collins, CO (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1175890
- Patent Number(s):
- 7096722
- Application Number:
- 10/329,664
- Assignee:
- Woodward Governor Company
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05B - INDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS, TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY
F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23N - REGULATING OR CONTROLLING COMBUSTION
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Benson, Kelly J., Thornton, Jimmy D., Richards, George A., and Straub, Douglas L. Method and apparatus for detecting combustion instability in continuous combustion systems. United States: N. p., 2006.
Web.
Benson, Kelly J., Thornton, Jimmy D., Richards, George A., & Straub, Douglas L. Method and apparatus for detecting combustion instability in continuous combustion systems. United States.
Benson, Kelly J., Thornton, Jimmy D., Richards, George A., and Straub, Douglas L. Tue .
"Method and apparatus for detecting combustion instability in continuous combustion systems". United States. https://www.osti.gov/servlets/purl/1175890.
@article{osti_1175890,
title = {Method and apparatus for detecting combustion instability in continuous combustion systems},
author = {Benson, Kelly J. and Thornton, Jimmy D. and Richards, George A. and Straub, Douglas L.},
abstractNote = {An apparatus and method to sense the onset of combustion stability is presented. An electrode is positioned in a turbine combustion chamber such that the electrode is exposed to gases in the combustion chamber. A control module applies a voltage potential to the electrode and detects a combustion ionization signal and determines if there is an oscillation in the combustion ionization signal indicative of the occurrence of combustion stability or the onset of combustion instability. A second electrode held in a coplanar but spaced apart manner by an insulating member from the electrode provides a combustion ionization signal to the control module when the first electrode fails. The control module broadcasts a notice if the parameters indicate the combustion process is at the onset of combustion instability or broadcasts an alarm signal if the parameters indicate the combustion process is unstable.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 29 00:00:00 EDT 2006},
month = {Tue Aug 29 00:00:00 EDT 2006}
}