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.
It deals primarily with water tube boilers with induced draft and forced draft fans or boilers containing only forced draft fans.
ICE CT-M Series cooling towers feature an induced draft design that is said to ensure that a low-static, low-energy fan will complete the job and avoid the water leaks typical in forced draft towers, according to the company.
Cleaning of cyclones, precipitators, air preheaters, induced draft fans, stacks, and associated ductwork was checked by the consultant through visual review, followed by white glove inspection.
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.
A small induced draft fan rated at approximately 1,000 [ft.sup.3]/min and 4 in Hg (equivalent to 55 in [H.sub.2]O) static pressure at the surface encourages the flow.
One is to install an "induced draft" furnace or water heater, which simply means that the exhaust flue includes a built-in fan that blows the fumes up the chimney.
Tenders are invited for procurement of induced draft cooling tower assy for ac plant
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.