Combustor oscillating pressure stabilization and method
Abstract
High dynamic pressure oscillations in hydrocarbon-fueled combustors typically occur when the transport time of the fuel to the flame front is at some fraction of the acoustic period. These oscillations are reduced to acceptably lower levels by restructuring or repositioning the flame front in the combustor to increase the transport time. A pilot flame front located upstream of the oscillating flame and pulsed at a selected frequency and duration effectively restructures and repositions the oscillating flame in the combustor to alter the oscillation-causing transport time.
- Inventors:
-
- Morgantown, WV
- Westover, WV
- Smithfield, PA
- Issue Date:
- Research Org.:
- EG & G TECH SVCS OF WV INC
- OSTI Identifier:
- 871766
- Patent Number(s):
- 5791889
- 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 F23R - GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- DOE Contract Number:
- AC21-90MC26328
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- combustor; oscillating; pressure; stabilization; method; dynamic; oscillations; hydrocarbon-fueled; combustors; typically; occur; transport; time; fuel; flame; front; fraction; acoustic; period; reduced; acceptably; levels; restructuring; repositioning; increase; pilot; located; upstream; pulsed; selected; frequency; duration; effectively; restructures; repositions; alter; oscillation-causing; selected frequency; pilot flame; located upstream; pressure oscillations; flame front; oscillating pressure; dynamic pressure; /431/60/
Citation Formats
Gemmen, Randall S, Richards, George A, Yip, Mui-Tong Joseph, Robey, Edward H, Cully, Scott R, and Addis, Richard E. Combustor oscillating pressure stabilization and method. United States: N. p., 1998.
Web.
Gemmen, Randall S, Richards, George A, Yip, Mui-Tong Joseph, Robey, Edward H, Cully, Scott R, & Addis, Richard E. Combustor oscillating pressure stabilization and method. United States.
Gemmen, Randall S, Richards, George A, Yip, Mui-Tong Joseph, Robey, Edward H, Cully, Scott R, and Addis, Richard E. Thu .
"Combustor oscillating pressure stabilization and method". United States. https://www.osti.gov/servlets/purl/871766.
@article{osti_871766,
title = {Combustor oscillating pressure stabilization and method},
author = {Gemmen, Randall S and Richards, George A and Yip, Mui-Tong Joseph and Robey, Edward H and Cully, Scott R and Addis, Richard E},
abstractNote = {High dynamic pressure oscillations in hydrocarbon-fueled combustors typically occur when the transport time of the fuel to the flame front is at some fraction of the acoustic period. These oscillations are reduced to acceptably lower levels by restructuring or repositioning the flame front in the combustor to increase the transport time. A pilot flame front located upstream of the oscillating flame and pulsed at a selected frequency and duration effectively restructures and repositions the oscillating flame in the combustor to alter the oscillation-causing transport time.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}
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