why the discharge pressure of ID fan showing negative at fan
running condition.(boiler operating condition.)
Answer Posted / mithilesh kumar
hi frnd..
1st offall ur question is wrong..
actually suction of ID fan is in negative..
in boiler furnce draught maintain (-3mmwc to -5mmwc) with
the help of ID fan.ie it's create vaccum in boiler side..
and it's discharge goes to stack which is positive..
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