“On-line In-situ Boiler Monitoring” was the Hot Topic on June 3
With a Utility MACT looming it becomes particularly important to maximize energy efficiency. Each one percent improvement in energy efficiency (e.g. an increase from 35 to 36 percent) can translate into a three percent reduction in mercury, CO2, NOx, toxic metals, etc. The MACT rule is likely to use CO as a surrogate for organic toxics. So finding the right balance between CO and NOx will be more critical. Three speakers with decades of experience provided insights on the use of monitoring to achieve efficiency improvement.
Todd Melick, PROMECON USA, Inc, making his presentation from Germany, cited success in Europe and elsewhere with on-line real time UBC (unburned carbon) measurement to optimize mill and boiler performance. The company has also developed methods for measuring particle size in the pulverizers. This provides the opportunity to make adjustments quickly.
David Moyeda, Manager of Boiler Combustion Engineering at GE Energy Services, discussed GE’s Zonal™ combustion monitoring system that measures gaseous combustibles (e.g., carbon monoxide) and oxygen profiles in the exhaust of coal-fired boilers. The system provides real-time, spatially-resolved data allowing combustion problems to be identified and resolved. The output from the system is suitable for boiler control purposes and/or use in conjunction with software optimization systems, such as GE’s KN3 product.
Scott Affelt, Zolo Technologies, discussed the ZoloBOSS, an instrument that provides real-time, simultaneous measurement of temperature, O2 and CO directly in the furnace. By laser measurement at the combustion boundary, more accurate and relevant measurements can be made.
The individual slides can be viewed in the NOx Decision Tree as follows:
SCOTT AFFELT – ZOLO TECHNOLOGIES
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NOx Continuing Decision Process For: Products
In Furnace Laser-Based Measurement Systems: Optimize Combustion in Coal-fired Boilers, presented by Scott Affelt - Zolo Technologies. Hot Topic Hour June 3, 2010.
TODD MELICK - PROMECON
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NOx Continuing Decision Process For: Products
MECONTROL Boiler Combustion Optimization - Advanced Instrumentation for Improved Plant Operation, presented by Todd Melick, Promecon USA. Hot Topic Hour June 3, 2010.
DAVID MOYEDA - GE
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NOx Continuing Decision Process For: Products
Zonal Combustion Monitoring System, presented by David Moyeda, GE Energy. Hot Topic Hour June 3, 2010.