Apparatus and method for burning a lean, premixed fuel/air mixture with low NOx emission
Abstract
An apparatus for enabling a burner to stably burn a lean fuel/air mixture. The burner directs the lean fuel/air mixture in a stream. The apparatus comprises an annular flame stabilizer; and a device for mounting the flame stabilizer in the fuel/air mixture stream. The burner may include a body having an internal bore, in which case, the annular flame stabilizer is shaped to conform to the cross-sectional shape of the bore, is spaced from the bore by a distance greater than about 0.5 mm, and the mounting device mounts the flame stabilizer in the bore. An apparatus for burning a gaseous fuel with low NOx emissions comprises a device for premixing air with the fuel to provide a lean fuel/air mixture; a nozzle having an internal bore through which the lean fuel/air mixture passes in a stream; and a flame stabilizer mounted in the stream of the lean fuel/air mixture. The flame stabilizer may be mounted in the internal bore, in which case, it is shaped and is spaced from the bore as just described. In a method of burning a lean fuel/air mixture, a lean fuel/air mixture is provided, and is directed in a stream; an annular eddy ismore »
- Inventors:
-
- Edmonton, CA
- Kensington, CA
- Issue Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- OSTI Identifier:
- 870412
- Patent Number(s):
- 5516280
- Assignee:
- Regents, University of California (Berkeley, CA)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23D - BURNERS
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- apparatus; method; burning; lean; premixed; fuel; air; mixture; nox; emission; enabling; burner; stably; burn; directs; stream; comprises; annular; flame; stabilizer; device; mounting; internal; bore; shaped; conform; cross-sectional; shape; spaced; distance; mounts; gaseous; emissions; premixing; provide; nozzle; passes; mounted; described; provided; directed; eddy; created; ignited; gaseous fuel; mounting device; internal bore; apparatus comprises; air mixture; flame stabilizer; lean fuel; cross-sectional shape; apparatus comprise; mixed fuel; nox emission; premixed fuel; /431/239/
Citation Formats
Kostiuk, Larry W, and Cheng, Robert K. Apparatus and method for burning a lean, premixed fuel/air mixture with low NOx emission. United States: N. p., 1996.
Web.
Kostiuk, Larry W, & Cheng, Robert K. Apparatus and method for burning a lean, premixed fuel/air mixture with low NOx emission. United States.
Kostiuk, Larry W, and Cheng, Robert K. Mon .
"Apparatus and method for burning a lean, premixed fuel/air mixture with low NOx emission". United States. https://www.osti.gov/servlets/purl/870412.
@article{osti_870412,
title = {Apparatus and method for burning a lean, premixed fuel/air mixture with low NOx emission},
author = {Kostiuk, Larry W and Cheng, Robert K},
abstractNote = {An apparatus for enabling a burner to stably burn a lean fuel/air mixture. The burner directs the lean fuel/air mixture in a stream. The apparatus comprises an annular flame stabilizer; and a device for mounting the flame stabilizer in the fuel/air mixture stream. The burner may include a body having an internal bore, in which case, the annular flame stabilizer is shaped to conform to the cross-sectional shape of the bore, is spaced from the bore by a distance greater than about 0.5 mm, and the mounting device mounts the flame stabilizer in the bore. An apparatus for burning a gaseous fuel with low NOx emissions comprises a device for premixing air with the fuel to provide a lean fuel/air mixture; a nozzle having an internal bore through which the lean fuel/air mixture passes in a stream; and a flame stabilizer mounted in the stream of the lean fuel/air mixture. The flame stabilizer may be mounted in the internal bore, in which case, it is shaped and is spaced from the bore as just described. In a method of burning a lean fuel/air mixture, a lean fuel/air mixture is provided, and is directed in a stream; an annular eddy is created in the stream of the lean fuel/air mixture; and the lean fuel/air mixture is ignited at the eddy.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1996},
month = {Mon Jan 01 00:00:00 EST 1996}
}