Ignition Rate Measurement of Laser-Ignited Coals
- Federal Energy Technology Center
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
- 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
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