OCR Text |
Show POTENTIAL BENEFITS OF THE SFA TECHNOLOGY Successful development of the SFA technology would produce significant benefits to the operation of industrial boilers. In particular, the SFA technology would improve individual burner performance in multiburner boilers and assist in providing optimum performance from each burner. Some specific advantages of successful implementation of SFA technology include: • Diagnostics - The SFA instrumentation will provide diagnostic capability to detect improper functioning of individual burners, thereby alerting the boiler operators to correct the malfunctioning parameters. • Burner Balancing - The SFA would enable balancing of the various burners for optimum combustion and minimum pollutant formation. • Air-Fuel Ratio Control - The SFA would enable the boiler operator to adjust the air-fuel ratio in individual burners to set the desired level of excess air for maintaining stable combustion conditions without creating reducing conditions. • Eliminate Reducing Conditions - Should any reducing conditions develop due to malfunctioning of the burners, the SFA would provide immediate information to correct the situation, thus, preventing tube wastage and increasing the life of the boiler's heating surfaces. • Reduced Pollutants - The' reduction of excess air levels with SFA instrumentation 227 will considerably reduce formation of pollutants, such as NOx and SOx . Also, the unburned carbon in fly ash will be reduced because of improved performance of the boiler, thus, reducing the particulate e~issions. The reduction in S03 leve~s wlll also result in reduced potentlal for back-end corrosion. • Problem Identification - The SFA will provide information to indicate the onset of a problem, and enable the boiler operator to take corrective steps before the malfunction affects operation or emissions. • Fuel Conservation - Balancing the burners and reduction in the excess air levels will result in reduced stack losses with attendant fuel savings. ACKNOWLEDGEMENT This work and the development of the Spectral Flame Analyzer was performed under the support of the U.S. Department of Energy. REFERENCES 1. A.G. Gaydon, "The Spectroscopy of Flames," Chapman and Hall, London (1974) 2. Beer, J.M., M.P. Jacques, and J.D. Teare, "Individual Burner Air/Fuel Ratio Control by Optical Adaptive Feedback Control System," MIT - EL82-001 Report (January 1982) 3. F. Fraim, "Research into a Spectral Flame Analyzer-Phase I," NTIS Report DOE/ID/ 12463-1 Final Report (June 1985) |