Chapter 10: Coal-Fired Boilers
This chapter discusses material-related problems associated with coal-fired burners. It explains how high temperatures affect heat-absorbing surfaces in furnace combustion areas and in the convection pass of superheaters and reheaters. It describes how low-NOx combustion technology, intended to reduce NOx emissions, accelerates tube wall wastage. It also covers circumferential cracking in furnace waterwalls, thermal fatigue cracking induced by waterlances and water cannons, superheater-reheater corrosion, and erosion in fluidized-bed boilers.
Understanding the Basics Collection
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The Understanding the Basics Collection provides comprehensive coverage of critical topics in metallurgy. These introductory guides present critical information on key topics related to materials processing, performance, and evaluation.