In comparison with coal combustion, cofiring of wood,characterized by relatively low heating value and highmoisture content, causes the increase of the attemperatorsspray water flow of 50% by biomass thermal fractionZDZ20%. In this position, it is rather better to feed thelower burners with wood, lowering the furnace outlettemperature. In some cases, it may also be necessary toincrease the capacity of attemperators.
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