induced draft


Also found in: Acronyms.

induced draft

[in′düst ′draft]
(mechanical engineering)
A mechanical draft produced by suction stream jets or fans at the point where air or gases leave a unit.

induced draft

The forced movement of air or gases caused by the suction created by the inlet side of a fan.
References in periodicals archive ?
Hence, the motors for the forced and induced draft fans operate below the optimum performance level.
In an induced draft system, several blower outputs may pipe to a manifold, which feeds a biofilter, often through ductwork similar to that used in HVAC systems.
Each precipitator received 10 to 12 white glove inspections; each cyclone six to eight; each preheater four to six; each induced draft fan and associated ductwork two to four; and each stack five to seven.
A small induced draft fan rated at approximately 1,000 cfm and 55 in-H [subscript]2 O static pressure at the surface encourages the flow.
As you might expect, both the induced draft and closed combustion systems cost more than those that rely on natural drafts.
A pulse jet fabric filter and induced draft fans will also be supplied for Unit 3.
Tenders are invited for INDUCED DRAFT COOLING TOWER
It is also equipped with a variable speed, induced draft fan at the tower outlet to automatically maintain the optimum flue gas static set point at the tower outlet.
Polyethylene noncorrosive assembled package cooling towers include Pioneer forced-draft line from 10 to 100 tons, the Paragon induced draft line from 100 to 250 tons, and the TM series induced draft line from 250 to 2000 tons in multi-fan modules designed and shipped factory complete.
This article summarizes recent field erosion experiments conducted by NorskeCanada's Port Alberni Division on their power boiler's induced draft (ID) fan, in an attempt to reduce severe wear, increase fan productivity, and prolong intervals between planned outages.