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Edward Lowton
Editor |
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ARTICLE
Boiler and Furnace Fouling
05 March 2013
The Problem Boiler tube bundles that are heavily fouled will compromise your generating capacity due to poor heat exchange and/or high pressure drop. With extreme fouling, your plant may need to be taken offline.
Change of fuel, especially to biomass, can exacerbate
fouling problems, and installed equipment such as
rappers or soot blowers may not be up to the task
of keeping the gas path free and ensuring good heat
transfer. Ash deposits and fouling (e.g. "eye brows”)
around the burners in coal power plants can create
health and safety issues during shut down and
maintenance. Combined Cycle Gas turbine boilers suffer
from rust deposits on the finned tube bundles. This is
exacerbated by repeated start ups and shut downs.
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