Fuel nozzle having respective arrays of pre-mixing conduits with respective vortex generators
Abstract
A fuel nozzle including vortex generating features for use in a combustion turbine engine is provided. An array of inner pre-mixing conduits (20) extends between an inlet end (14) and an outlet end (16) of the nozzle. An array of outer pre-mixing conduits (22) may be disposed radially outwardly relative to the inner pre-mixing conduits (20). A fuel-directing tube (24) includes fuel-directing arms (26) structured to direct fuel flow into the outer pre-mixing conduits (22) to be mixed with a flow of air. The fuel-directing arms include a bluff structural arrangement (30) that may be disposed upstream of fuel injection locations (32, 32') into the outer pre-mixing conduits (22). The proposed nozzle is believed to provide superior micro-mixing capability, such as by increasing the depth of penetration of jets of fuel in a cross-flow of air, and/or formation of vortices in a wake zone downstream from the vortex generating features.
- Inventors:
- Issue Date:
- Research Org.:
- Siemens Energy, Inc., Orlando, FL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1498532
- Patent Number(s):
- 10184666
- Application Number:
- 14/948,518
- Assignee:
- Siemens Energy, Inc. (Orlando, FL)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02C - GAS-TURBINE PLANTS
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
- DOE Contract Number:
- FC26-05NT42644
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2015 Nov 23
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Meadows, Joseph, and Beck, Christian. Fuel nozzle having respective arrays of pre-mixing conduits with respective vortex generators. United States: N. p., 2019.
Web.
Meadows, Joseph, & Beck, Christian. Fuel nozzle having respective arrays of pre-mixing conduits with respective vortex generators. United States.
Meadows, Joseph, and Beck, Christian. Tue .
"Fuel nozzle having respective arrays of pre-mixing conduits with respective vortex generators". United States. https://www.osti.gov/servlets/purl/1498532.
@article{osti_1498532,
title = {Fuel nozzle having respective arrays of pre-mixing conduits with respective vortex generators},
author = {Meadows, Joseph and Beck, Christian},
abstractNote = {A fuel nozzle including vortex generating features for use in a combustion turbine engine is provided. An array of inner pre-mixing conduits (20) extends between an inlet end (14) and an outlet end (16) of the nozzle. An array of outer pre-mixing conduits (22) may be disposed radially outwardly relative to the inner pre-mixing conduits (20). A fuel-directing tube (24) includes fuel-directing arms (26) structured to direct fuel flow into the outer pre-mixing conduits (22) to be mixed with a flow of air. The fuel-directing arms include a bluff structural arrangement (30) that may be disposed upstream of fuel injection locations (32, 32') into the outer pre-mixing conduits (22). The proposed nozzle is believed to provide superior micro-mixing capability, such as by increasing the depth of penetration of jets of fuel in a cross-flow of air, and/or formation of vortices in a wake zone downstream from the vortex generating features.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 22 00:00:00 EST 2019},
month = {Tue Jan 22 00:00:00 EST 2019}
}
Works referenced in this record:
Air fuel mixer for gas turbine combustor
patent, March 1997
- Joshi, Narendra Digamber; Epstein, Michael; Ewbank, Michael E.
- US Patent Document 5,613,363
Fuel injector for use in a gas turbine engine
patent, October 2012
- Wiebe, David J.
- US Patent Document 8,281,594
Air/fuel supply system for use in a gas turbine engine
patent, June 2014
- Fox, Timothy A.; Schilp, Reinhard; Gambacorta, Domenico
- US Patent Document 8,752,386
Air/Fuel Supply System for use in a Gas Turbine Engine
patent-application, December 2011
- Fox, Timothy A.; Schlip, Reinhard; Gambacorta, Domenico
- US Patent Application 12/786930; 20110289928
Gas turbine ultra low NOx combustor
patent, November 1994
- McWhirter, Anthony; Colautti, Eugenio; Amos, David
- US Patent Document 5,361,586
Premix lean burner
patent, February 2012
- Feese, James J.; Wartluft, Bruce A.; Mattern, Jacob W.
- US Patent Document 8,113,821