0
In a balanced draft boiler, you actually have both: forced draft (FD) fans supplying air to the furnace, and induced draft (ID) fans removing flue gas. Typically, the FD fans control airflow, while ID Fans control furnace pressure to slightly below atmospheric pressure.
In general though, the choice between forced draft and induced draft is based on how "tight" the system is - if you have leaks, it is better to use ID, as FD will cause product loss.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Why induced draft fan operate first instead of a forced draft fan?
The procedure for starting draft plant (fans) in a boiler is to start the ID Fan first. Remember that the purpose of the ID Fan is so that the Furnace operates at a slight vacuum. (See Related Link: FD Fan vs ID Fan.) Any casing or furnace leaks then allow air to leak in, rather than allowing air with pulverised fuel and fly ask to leak out.
Where is a video of Edge vs John Cena at the WWE draft?
On Youtube
What is the advantage in architectural drafting with a pencil vs a pen?
Because you can easily erase it and change your draft.
What are the release dates for Fan Wars - 2012 Cyborg vs- R2D2 1-7?
Fan Wars - 2012 Cyborg vs- R2D2 1-7 was released on: USA: 20 August 2012
A peasant rebellion forced king john to sign the magna carta true or false?
No, it was actually the Barons who forced this, to preserve their rights vs the King
What does Irish horse breeding and American horse breeding have in common?
Do you mean the Irish Draught Vs American Draft?
Who was named Survivor Heroes vs Villains fan favorite?
The Fan Favorite of Survivor: Heroes V.S. Villains was Russell Hantz.
What are the release dates for Fan Wars - 2012 Green Arrow vs- Hawkeye 1-8?
Fan Wars - 2012 Green Arrow vs- Hawkeye 1-8 was released on: USA: 27 August 2012
What are the release dates for Fan Wars - 2012 Wonder Woman vs- She Hulk 1-6?
Fan Wars - 2012 Wonder Woman vs- She Hulk 1-6 was released on: USA: 13 August 2012
What are the release dates for Fan Wars - 2012 The Avengers vs- The Justice League 1-10?
Fan Wars - 2012 The Avengers vs- The Justice League 1-10 was released on: USA: 10 September 2012
What are the release dates for Fan Wars - 2012 Gwen Stacy vs- Mary Jane 1-1?
Fan Wars - 2012 Gwen Stacy vs- Mary Jane 1-1 was released on: USA: 8 July 2012
What are the release dates for Fan Wars - 2012 Adam West vs- Val Kilmer 1-2?
Fan Wars - 2012 Adam West vs- Val Kilmer 1-2 was released on: USA: 16 July 2012
