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Question
what is the difference between id fans and fd 
fans
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
ID fan(Induced Draft Fan)basically pulls out flue gas from
the furnace of boiler. It is located between dust
precipitators(ESPs) and Chimney. Obviously it handles hot
air/dust. Whereas, FD fan(Forced Draft Fan)supplies the
required air into the furnace for combustion of fuel. It
handles air at normal temperature. The capacity/power
rating of ID fan will be more than that of FD fan
 
Is This Answer Correct ?    289 Yes 12 No
Murty D
 
Answer
# 2
Normally both fans are used in thermal power plant. FD fan is used to draw the air from atmosphere to boiler that will create positive pressure inside the boiler. But ID fan is used to evacuate the flue gas from boiler to atmosphere via ESP ,chimney and that will create negative pressure inside the boiler..... 
Is This Answer Correct ?    126 Yes 11 No
Azarudeen
 
 
 
Answer
# 3
In a balanced draft boiler you actually have both F.d fan and I.D fan.
1. I.D stands for Induced draft Fan whereas F.D stands for Force Draft fan.
2. ID fan(Induced Draft Fan)basically pulls out flue gas from
the furnace of boiler. FD fan(Forced Draft Fan)supplies the
required air into the furnace for combustion of fuel.
3. It is located between dust precipitators(ESPs) and Chimney. Obviously it handles hot air/dust. F.D handles air at normal temperature. The capacity/power rating of ID fan will be more than that of FD fan.
 
Is This Answer Correct ?    20 Yes 0 No
M Talha Aziz(cap)
 
Answer
# 4
What is then a blower?

Are IDs and FDs a type of blower or blowers are something
different. Usually have seen the blowers are associated with
Burner. Can someone put these definition in perspective.
 
Is This Answer Correct ?    1 Yes 7 No
Sudarsan
 
Answer
# 5
id fan maens induce draet ean & fd ean is froce draft
fan.both are use in thermal power plant.id fan so connected
the airpreheater.fd fan is so connect the eletropre-preted.
 
Is This Answer Correct ?    45 Yes 135 No
Mitesh
 

 
 
 
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