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Title: Dynamically balanced fuel nozzle and method of operation

Abstract

An apparatus and method of operation designed to reduce undesirably high pressure oscillations in lean premix combustion systems burning hydrocarbon fuels are provided. Natural combustion and nozzle acoustics are employed to generate multiple fuel pockets which, when burned in the combustor, counteract the oscillations caused by variations in heat release in the combustor. A hybrid of active and passive control techniques, the apparatus and method eliminate combustion oscillations over a wide operating range, without the use of moving parts or electronics.

Inventors:
 [1];  [2];  [3]
  1. Morgantown, WV
  2. Baltimore, MD
  3. Westover, WV
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
OSTI Identifier:
872984
Patent Number(s):
6058709
Assignee:
United States of America represented by United States Department (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 F23M - CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
dynamically; balanced; fuel; nozzle; method; operation; apparatus; designed; reduce; undesirably; pressure; oscillations; lean; premix; combustion; systems; burning; hydrocarbon; fuels; provided; natural; acoustics; employed; generate; multiple; pockets; burned; combustor; counteract; caused; variations; heat; release; hybrid; active; passive; control; techniques; eliminate; wide; operating; range; moving; electronics; multiple fuel; operating range; fuel nozzle; combustion systems; hydrocarbon fuel; hydrocarbon fuels; systems burning; pressure oscillations; fuel pocket; fuel pockets; combustion oscillation; dynamically balanced; /60/431/

Citation Formats

Richards, George A, Janus, Michael C, and Robey, Edward H. Dynamically balanced fuel nozzle and method of operation. United States: N. p., 2000. Web.
Richards, George A, Janus, Michael C, & Robey, Edward H. Dynamically balanced fuel nozzle and method of operation. United States.
Richards, George A, Janus, Michael C, and Robey, Edward H. Sat . "Dynamically balanced fuel nozzle and method of operation". United States. https://www.osti.gov/servlets/purl/872984.
@article{osti_872984,
title = {Dynamically balanced fuel nozzle and method of operation},
author = {Richards, George A and Janus, Michael C and Robey, Edward H},
abstractNote = {An apparatus and method of operation designed to reduce undesirably high pressure oscillations in lean premix combustion systems burning hydrocarbon fuels are provided. Natural combustion and nozzle acoustics are employed to generate multiple fuel pockets which, when burned in the combustor, counteract the oscillations caused by variations in heat release in the combustor. A hybrid of active and passive control techniques, the apparatus and method eliminate combustion oscillations over a wide operating range, without the use of moving parts or electronics.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}

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