Ignition Rate Measurement of Laser-Ignited Coals
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.
- Research Organization:
- Federal Energy Technology Center, Morgantown, WV, and Pittsburgh, PA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FG22-94MT94012
- OSTI ID:
- 2270
- Report Number(s):
- DE-FG22-94MT94012-12; ON: DE00002270
- Country of Publication:
- United States
- Language:
- English
Similar Records
Ignition rate measurement of laser-ignited coals. Quarterly technical progress report, July 1, 1995--September 30, 1995
Ignition rate measurement of laser-ignited coals. Technical progress report, July 1--September 30, 1996