Opportunities for the next generation of optical boiler diagnostics

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Title Opportunities for the next generation of optical boiler diagnostics
Creator Finney, C.E.A.
Contributor Daw, C.S., Fuller, T.A., Flynn, T.J., Kulp, C.W.
Date 2015-09-11
Spatial Coverage Salt Lake City, Utah
Subject 2015 AFRC Industrial Combustion Symposium
Description Paper from the AFRC 2015 conference titled Opportunities for the next generation of optical boiler diagnostics
Abstract Inefficient boiler operation and control are responsible for wasting large amounts of fuel and releasing excess greenhouse gases (CO2 and N2O) and pollutants (CO, NOx). This is especially true in the United States where more than 80% of the energy used across all sectors is generated by fossil-fuels combustion. It is now recognized that continuous monitoring and control of both individual burners and groups of burners in boilers is essential to meet and sustain ever more stringent greenhouse and pollutant emission limits. This has become especially true as incremental improvements in burner performance have become disproportionately more difficult, and variations in fuel properties due to the widespread practice of fuel blending require frequent adjustment in burner settings to maintain optimum performance. One approach for advanced optical burner monitoring has been pioneered and successfully implemented commercially on coal-fired utility boilers by The Babcock & Wilcox Company. The Flame Doctor® system statistically characterizes dynamic information in the flicker signals captured by optical flame scanners to assess (and potentially adjust) the performance of individual burners or ensembles of burners (e.g., by mill group). While the value of this technology has been demonstrated repeatedly for over 12 years, it is inherently limited because conventional flame-scanner systems have been designed to meet very specific safety objectives and were never intended to be used for burner performance monitoring. In this work, we describe the current state of the art for burner diagnostics as embodied in the Flame Doctor system. Next, we present the theoretical basis for a new generation of advanced optical flame monitoring technology that could go well beyond the capabilities of current flame-scanner-based systems. We expect that the need for such capabilities will increase substantially as boiler fuel sources and needs for tighter emissions and efficiency controls continue to grow.
Type Event
Format application/pdf
Rights No copyright issues exist
OCR Text Show
ARK ark:/87278/s64v0v9r
Setname uu_afrc
Date Created 2018-11-30
Date Modified 2021-05-06
ID 1387836
Reference URL https://collections.lib.utah.edu/ark:/87278/s64v0v9r