Draught Fans Used in Thermal Power Plants FD Fans, ID ...
These primary air fans produce a high pressure to push the coal and air mixture through pulverizer into the furnace. The most common configuration of the draught fans used as a PA fan is the backward curved centrifugal fan. In power plants the PA fans play an important role in supplying air necessary for fuel combustion and in the maintenance of furnace temperature. Secondary Fans or SA Fans ...