duct fan

tubeaxial fan

tubeaxial fan
1. A fan consisting of a propeller or disk-type wheel within a cylinder; may be either belt-driven or connected directly to a motor.
2. A type of axial-flow fan which is similar to a vaneaxial fan but without downstream guide vanes. Lower in efficiency than the vaneaxial fan, but also lower in cost.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
A duct fan blows across the heating element toward the back of the cabinet, forcing recently heated air down the back duct.
Before installing a duct fan, try to adjust all the duct dampers to get more heat in that room.
The heat removal from the wall just after start-up peaks at 200 W or about 30 W/[m.sup.2] over the 7 [m.sup.2] surface area of the panel with an energy expenditure of 17 W for the duct fan.
Dual duct fan and reheat savings are the same as the VAV savings previously seen in a constant volume reheat system: $17,794/year.
Recessed duct fans are sized to fit either a 4 x 10-in.
While not actually a source of supplemental heat, duct fans are designed to boost the flow of air from the central heating system to areas in a house that are hard to heat or cool.
ALDES offers powerful inline duct fans for use with nonmotorized range hoods to eliminate exhaust fan noise in kitchens by remote mounting (attic or basement) of the fans.