Combustor oscillation attenuation via the control of fuel-supply line dynamics
Abstract
Combustion oscillation control in combustion systems using hydrocarbon fuels is provided by acoustically tuning a fuel-delivery line to a desired phase of the combustion oscillations for providing a pulse of a fuel-rich region at the oscillating flame front at each time when the oscillation produced pressure in the combustion chamber is in a low pressure phase. The additional heat release produced by burning such fuel-rich regions during low combustion chamber pressure effectively attenuates the combustion oscillations to a selected value.
- Inventors:
-
- Morgantown, WV
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- OSTI Identifier:
- 871848
- Patent Number(s):
- 5809769
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23N - REGULATING OR CONTROLLING COMBUSTION
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- combustor; oscillation; attenuation; via; control; fuel-supply; line; dynamics; combustion; systems; hydrocarbon; fuels; provided; acoustically; tuning; fuel-delivery; desired; phase; oscillations; providing; pulse; fuel-rich; region; oscillating; flame; front; time; produced; pressure; chamber; additional; heat; release; burning; regions; effectively; attenuates; selected; value; desired phase; combustion systems; additional heat; hydrocarbon fuel; combustion chamber; hydrocarbon fuels; supply line; flame front; oscillation control; chamber pressure; selected value; combustion oscillation; /60/431/
Citation Formats
Richards, George A, and Gemmen, Randall S. Combustor oscillation attenuation via the control of fuel-supply line dynamics. United States: N. p., 1998.
Web.
Richards, George A, & Gemmen, Randall S. Combustor oscillation attenuation via the control of fuel-supply line dynamics. United States.
Richards, George A, and Gemmen, Randall S. Thu .
"Combustor oscillation attenuation via the control of fuel-supply line dynamics". United States. https://www.osti.gov/servlets/purl/871848.
@article{osti_871848,
title = {Combustor oscillation attenuation via the control of fuel-supply line dynamics},
author = {Richards, George A and Gemmen, Randall S},
abstractNote = {Combustion oscillation control in combustion systems using hydrocarbon fuels is provided by acoustically tuning a fuel-delivery line to a desired phase of the combustion oscillations for providing a pulse of a fuel-rich region at the oscillating flame front at each time when the oscillation produced pressure in the combustion chamber is in a low pressure phase. The additional heat release produced by burning such fuel-rich regions during low combustion chamber pressure effectively attenuates the combustion oscillations to a selected value.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1998},
month = {Thu Jan 01 00:00:00 EST 1998}
}
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Works referenced in this record:
Convective Heat Transfer in a Gas-Fired Pulsating Combustor
journal, January 1969
- Hanby, V. I.
- Journal of Engineering for Power, Vol. 91, Issue 1