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Title: Temperature, velocity, and species profile measurements for reburning in a pulverized, entrained flow, coal combustor. Semi-annual report, April 30, 1996--October 31, 1996

Abstract

The capability of LDA measurements for future reburning experiments has now been demonstrated. Measurements of mean and turbulent gas and particle velocity have been obtained using Laser Doppler Anemometry (LDA) in the near burner and quart region of the pulverized coal reactor. The mean and turbulent velocity at the burner outlet, or top of the quart were obtained under non-reacting conditions in order to obtain realistic boundary conditions for comprehensive combustion modeling. Also, under cold flow it was determined that little error occurred in measuring mean velocities with LDA using pulverized coal as the seed particle. Thus, for mean velocities, coal particle and gas velocities were similar. Coal particle velocity profiles were obtained at three swirls and three axial locations. Gas species, and temperature maps for the reactor have now also been completed at three swirl settings in addition to the LDA data. Gas species obtained include CO, CO 2, O{sub 2} and NO. Calibration of the HCN and NH{sub 3} measurement has been successfully completed but no measurements in the reactor have been obtained. The design and fabrication of fuel and air injectors to be used for reburning are complete. The injectors have not yet been tested.

Authors:
Publication Date:
Research Org.:
Brigham Young Univ., Provo, UT (United States)
Sponsoring Org.:
USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States)
OSTI Identifier:
421941
Report Number(s):
DOE/PC/95223-3
ON: DE97051056
DOE Contract Number:  
FG22-95PC95223
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 31 Oct 1996
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; COAL; STAGED COMBUSTION; GASES; TURBULENT FLOW; PARTICULATES; COMBUSTORS; VORTEX FLOW; PROGRESS REPORT; PULVERIZED FUELS; MATHEMATICAL MODELS; VELOCITY; CARBON MONOXIDE; CARBON DIOXIDE; OXYGEN; NITRIC OXIDE; HYDROCHLORIC ACID; AMMONIA; MEASURING INSTRUMENTS; BURNERS; BOUNDARY CONDITIONS

Citation Formats

Tree, D R. Temperature, velocity, and species profile measurements for reburning in a pulverized, entrained flow, coal combustor. Semi-annual report, April 30, 1996--October 31, 1996. United States: N. p., 1996. Web. doi:10.2172/421941.
Tree, D R. Temperature, velocity, and species profile measurements for reburning in a pulverized, entrained flow, coal combustor. Semi-annual report, April 30, 1996--October 31, 1996. United States. https://doi.org/10.2172/421941
Tree, D R. 1996. "Temperature, velocity, and species profile measurements for reburning in a pulverized, entrained flow, coal combustor. Semi-annual report, April 30, 1996--October 31, 1996". United States. https://doi.org/10.2172/421941. https://www.osti.gov/servlets/purl/421941.
@article{osti_421941,
title = {Temperature, velocity, and species profile measurements for reburning in a pulverized, entrained flow, coal combustor. Semi-annual report, April 30, 1996--October 31, 1996},
author = {Tree, D R},
abstractNote = {The capability of LDA measurements for future reburning experiments has now been demonstrated. Measurements of mean and turbulent gas and particle velocity have been obtained using Laser Doppler Anemometry (LDA) in the near burner and quart region of the pulverized coal reactor. The mean and turbulent velocity at the burner outlet, or top of the quart were obtained under non-reacting conditions in order to obtain realistic boundary conditions for comprehensive combustion modeling. Also, under cold flow it was determined that little error occurred in measuring mean velocities with LDA using pulverized coal as the seed particle. Thus, for mean velocities, coal particle and gas velocities were similar. Coal particle velocity profiles were obtained at three swirls and three axial locations. Gas species, and temperature maps for the reactor have now also been completed at three swirl settings in addition to the LDA data. Gas species obtained include CO, CO 2, O{sub 2} and NO. Calibration of the HCN and NH{sub 3} measurement has been successfully completed but no measurements in the reactor have been obtained. The design and fabrication of fuel and air injectors to be used for reburning are complete. The injectors have not yet been tested.},
doi = {10.2172/421941},
url = {https://www.osti.gov/biblio/421941}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Oct 31 00:00:00 EST 1996},
month = {Thu Oct 31 00:00:00 EST 1996}
}