forced draft


Also found in: Acronyms.

forced draft

[¦fȯrst ′draft]
(mechanical engineering)
Air under positive pressure produced by fans at the point where air or gases enter a unit, such as a combustion furnace.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

forced draft

In a furnace, a draft of air which is mixed with fuel before being fed into the combustion chamber.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
[12] did an experimental investigation of thermal performance of a forced draft counter flow wet cooling tower filled with a rotational splash type packing.
Forced Draft. Refers to the movement of air under pressure through a cooling tower.
Roh said, ''To our people, Dokdo is a symbol of restoring complete sovereignty.'' He even said Japan's claim to the islets is ''an act of justifying its war of aggression and killings, and history of crimes that include exploitation for 40 years, torture, imprisonment, a forced draft and even 'comfort women.''' As both talks will be fraught with difficulty, the three governments must strive all the more to remain level-headed.
Same is true for induced and forced draft boiler fans.
It deals primarily with water tube boilers with induced draft and forced draft fans or boilers containing only forced draft fans.
Determination of moisture content: Forced draft oven: Vacuum oven: Microwave drying oven: Rapid moisture analyser: Toluene distillation; Karl Fischer: Near infrared analyser.
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.
6, was tested for ration removal efficiency through the piloted forced draft aerator.
Some of the features that make these furnaces and boilers different from conventional units are forced draft systems, pulse combustion, secondary heat exchangers, and heat transfer modules.
Forced draft (FD) fans supply combustion air to the furnace and induced draft (ID) fans remove flue gas from the furnace.