skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: NO[sub x] and CO emissions from a pulse combustor operating in a lean premixed mode

Abstract

Control over the combustion fluid dynamics was used to minimize the emission of NO[sub x] and CO. The combustion kinetics were controlled by operating the combustor premixed and were varied by modifying the equivalence ratio over the lean stability envelope. A wide dynamic range in fluid dynamic mixing characteristics was also investigated by modifying the degree of macroscopic mixing and microscopic mixing. The residence time at high temperature was controlled by modifying the frequency of the periodic reacting flow in a pulse combustor. It was found that controlling the flame temperature, chemical kinetics, and residence time at high temperature was best accomplished by controlling the equivalence ratio and the degree of macroscopic mixing rather than controlling the microscopic mixing over the dynamic range obtainable by the techniques used in this study. Emission levels below 5.0 ppm NO[sub x], with corresponding levels of 5.0 ppm CO (corrected to 3% O[sub 2]), were achieved in a pulse combustor operating in a lean premixed mode, without the use of any post combustion cleanup technologies. Both NO[sub 2] and CO emissions were invariant to changes in the power input.

Authors:
; ; ;  [1]
  1. Sandia National Labs., Livermore, CA (United States). Combustion Research Facility
Publication Date:
OSTI Identifier:
6529158
Report Number(s):
CONF-940711-
Journal ID: ISSN 0010-2180; CODEN: CBFMAO
Resource Type:
Conference
Journal Name:
Combustion and Flame; (United States)
Additional Journal Information:
Journal Volume: 99:3-4; Conference: 25. international symposium on combustion, Irvine, CA (United States), 31 Jul - 5 Aug 1994; Journal ID: ISSN 0010-2180
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 01 COAL, LIGNITE, AND PEAT; CARBON MONOXIDE; AIR POLLUTION ABATEMENT; NITROGEN OXIDES; PULSE COMBUSTORS; COMBUSTION CONTROL; FLUID MECHANICS; FUEL-AIR RATIO; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; COMBUSTORS; CONTROL; MECHANICS; NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; POLLUTION ABATEMENT; 540120* - Environment, Atmospheric- Chemicals Monitoring & Transport- (1990-); 010800 - Coal, Lignite, & Peat- Waste Management

Citation Formats

Keller, J O, Bramlette, T T, Barr, P K, and Alvarez, J R. NO[sub x] and CO emissions from a pulse combustor operating in a lean premixed mode. United States: N. p., 1994. Web.
Keller, J O, Bramlette, T T, Barr, P K, & Alvarez, J R. NO[sub x] and CO emissions from a pulse combustor operating in a lean premixed mode. United States.
Keller, J O, Bramlette, T T, Barr, P K, and Alvarez, J R. 1994. "NO[sub x] and CO emissions from a pulse combustor operating in a lean premixed mode". United States.
@article{osti_6529158,
title = {NO[sub x] and CO emissions from a pulse combustor operating in a lean premixed mode},
author = {Keller, J O and Bramlette, T T and Barr, P K and Alvarez, J R},
abstractNote = {Control over the combustion fluid dynamics was used to minimize the emission of NO[sub x] and CO. The combustion kinetics were controlled by operating the combustor premixed and were varied by modifying the equivalence ratio over the lean stability envelope. A wide dynamic range in fluid dynamic mixing characteristics was also investigated by modifying the degree of macroscopic mixing and microscopic mixing. The residence time at high temperature was controlled by modifying the frequency of the periodic reacting flow in a pulse combustor. It was found that controlling the flame temperature, chemical kinetics, and residence time at high temperature was best accomplished by controlling the equivalence ratio and the degree of macroscopic mixing rather than controlling the microscopic mixing over the dynamic range obtainable by the techniques used in this study. Emission levels below 5.0 ppm NO[sub x], with corresponding levels of 5.0 ppm CO (corrected to 3% O[sub 2]), were achieved in a pulse combustor operating in a lean premixed mode, without the use of any post combustion cleanup technologies. Both NO[sub 2] and CO emissions were invariant to changes in the power input.},
doi = {},
url = {https://www.osti.gov/biblio/6529158}, journal = {Combustion and Flame; (United States)},
issn = {0010-2180},
number = ,
volume = 99:3-4,
place = {United States},
year = {Thu Dec 01 00:00:00 EST 1994},
month = {Thu Dec 01 00:00:00 EST 1994}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: