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Title: Ignition Rate Measurement of Laser-Ignited Coals

Abstract

We established a novel experiment to study the ignition of pulverized coals under conditions relevant to utility boilers. Specifically, we determined the ignition mechanism of pulverized-coal particles under various conditions of particle size, coal type, and freestream oxygen concentration. We also measured the ignition rate constant of a Pittsburgh #8 high-volatile bituminous coal by direct measurement of the particle temperature at ignition, and incorporating this measurement into a mathematical model for the ignition process. The model, called Distributed Activation Energy Model of Ignition, was developed previously by our group to interpret conventional drop-tube ignition experiments, and was modified to accommodate the present study.

Authors:
;
Publication Date:
Research Org.:
Federal Energy Technology Center, Morgantown, WV, and Pittsburgh, PA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
2270
Report Number(s):
DE-FG22-94MT94012-12
ON: DE00002270
DOE Contract Number:  
FG22-94MT94012
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; Coal; Boilers; Ignition

Citation Formats

Chen, John C, and Kabadi, Vinayak. Ignition Rate Measurement of Laser-Ignited Coals. United States: N. p., 1997. Web. doi:10.2172/2270.
Chen, John C, & Kabadi, Vinayak. Ignition Rate Measurement of Laser-Ignited Coals. United States. https://doi.org/10.2172/2270
Chen, John C, and Kabadi, Vinayak. 1997. "Ignition Rate Measurement of Laser-Ignited Coals". United States. https://doi.org/10.2172/2270. https://www.osti.gov/servlets/purl/2270.
@article{osti_2270,
title = {Ignition Rate Measurement of Laser-Ignited Coals},
author = {Chen, John C and Kabadi, Vinayak},
abstractNote = {We established a novel experiment to study the ignition of pulverized coals under conditions relevant to utility boilers. Specifically, we determined the ignition mechanism of pulverized-coal particles under various conditions of particle size, coal type, and freestream oxygen concentration. We also measured the ignition rate constant of a Pittsburgh #8 high-volatile bituminous coal by direct measurement of the particle temperature at ignition, and incorporating this measurement into a mathematical model for the ignition process. The model, called Distributed Activation Energy Model of Ignition, was developed previously by our group to interpret conventional drop-tube ignition experiments, and was modified to accommodate the present study.},
doi = {10.2172/2270},
url = {https://www.osti.gov/biblio/2270}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Oct 31 00:00:00 EST 1997},
month = {Fri Oct 31 00:00:00 EST 1997}
}