What is daught, what kind of draught used in boiler chimney

Answer Posted / parth chaudhary

Draught in Boiler chimney is Induced Draught which is
generated by induced draught fan.
This Fan is mounted after Esp(Electro static precipitator)
and Before Chimney.
Is Funtion is to suck Flue Gas from Boiler , Esp & Flue gas
duct to chiney.
This draught is manual one.
While the natural draught is created by temprature
difference between the flue gas inside the chimney and
outside the chimney.
Hence the Pressure difference is generated.
hence Flue gas Tend to move Upward.
from hight to low temprature.
more over Pressure inside the chimney is more than
atmospheric pressure hence it moves outward.

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