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Reduction in oil use in coal-fired utility boilers

Conference · · Am. Soc. Mech. Eng., (Pap.); (United States)
OSTI ID:5246551
The incentive to reduce oil consumption in coal-fired power plants for boiler warm-up and low load stabilization has increased in recent years with escalation of oil prices and uncertainty in oil supply. Current boiler manufacturer and utility practices to decrease oil use in power plants are discussed. Possible fire-side techniques and methods to increase coal utilization for warm-up and stabilization are described, including direct, semidirect, indirect and coal-derived alternate fuels. Burner modifications, ignitor replacement, small pulverizer installation, existing pulverizer operation changes and methane assist are included in the presentation of direct-fired systems. Coal gasification and coal-water slurries are also considered for plant retrofit to reduce oil consumption. A brief discussion of pulverized coal ignition and combustion stability is presented as background for comparison of the systems considered.
Research Organization:
Mechanical and Chemical Engineering, Brigham Young University, Provo, Utah
OSTI ID:
5246551
Report Number(s):
CONF-830905-
Conference Information:
Journal Name: Am. Soc. Mech. Eng., (Pap.); (United States) Journal Volume: 83-JPGC-PWR-45
Country of Publication:
United States
Language:
English