Monitoring power plant fireside corrosion using corrosion probes
The ability to monitor the corrosion degradation of key components in fossil fuel power plants is of utmost importance for Futuregen and ultra-supercritical power plants. Fireside corrosion occurs in the high temperature sections of energy production facilities due to a number of factors: ash deposition, coal composition, thermal gradients, and low NOx conditions, among others. Problems occur when equipment designed for either oxidizing or reducing conditions is exposed to alternating oxidizing and reducing conditions. This can happen especially near the burners. The use of low NOx burners is becoming more commonplace and can produce reducing environments that accelerate corrosion. One method of addressing corrosion of these surfaces is the use of corrosion probes to monitor when process changes cause corrosive conditions. In such a case, corrosion rate could become a process control variable that directs the operation of a coal combustion or coal gasification system. Alternatively, corrosion probes could be used to provide an indication of total metal damage and thus a tool to schedule planned maintenance outages.
- Research Organization:
- Albany Research Center (ARC), Albany, OR (United States)
- Sponsoring Organization:
- USDOE - Office of Fossil Energy (FE)
- OSTI ID:
- 895400
- Report Number(s):
- DOE/ARC-2005-057; TRN: US200702%%839
- Resource Relation:
- Conference: 30th International Technical Conference on Coal Utilization & Fuel Systems, Clearwater, Florida, April 17-22, 2005
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
20 FOSSIL-FUELED POWER PLANTS
36 MATERIALS SCIENCE
BURNERS
COAL
COAL GASIFICATION
COMBUSTION
CORROSION
DEPOSITION
FOSSIL-FUEL POWER PLANTS
FUEL SYSTEMS
MAINTENANCE
MONITORING
MONITORS
POWER PLANTS
PROBES
PROCESS CONTROL
SCHEDULES
TEMPERATURE GRADIENTS
corrosion
fireside corrosion
fossil fuel power plants
probes
ultra supercritical power plants
electrochemical corrosion rate
electrochemical noise