Correlating The Slagging of A Utility Boiler With Coal Characteristicsable to separate the good versus poor performing coals. Further investigation .. asked to differentiate between coal ashes that melted at or over the furnace design limits. . impact of iron by including both sulfur and iron oxide in the numerator.effect of using good coal in poor coal designed boilers,The Importance of Coal Analysis to Boiler DesignersChanges in coal property results in efficiency variation and the designer may not be able . fuels have heat values from as low as 500 kcal/kg to as high as 11000 kcals/kg . Formation of coal has vast impact on boiler design; the Gondwana coals are different . There are known and unknowns with coal during combustion.
effect of using good coal in poor coal designed boilers