auxiliary fan

auxiliary fan

[ȯg′zil·yə·rē ′fan]
(mining engineering)
A small fan installed underground for ventilating narrow coal drivages or hard headings which are not ventilated by the normal air current.
References in periodicals archive ?
A +12 VDC, or +5 VDC for 5 VDC output models, auxiliary fan output is provided should forced-air cooling be required.
Depending on one's age and location, others less so--such as the John Howard Ladies' Auxiliary Fan Club, the Sydney House of the Order of Perpetual Indulgence, the anti-uranium and land rights activist, 'Uncle' Kevin Buzzacott, or BUGA-UP, a group of well-organised after-dark graffitists who altered billboards that advertised cigarettes, beauty aids and McDonalds.
This model has a built-in active PFC function and a 12 V auxiliary fan output with 5 V stand by.
For the most part, 762-mm (30-in) diameter circular ducts constructed from 20-ga galvanized steel were used to connect the nozzle chamber to the auxiliary fan.
This is designed to provide more cooling for the engine, eliminating the need for an auxiliary fan, which can increase emitted noise.
More user-friendly, the controls also allows the climate in the back to be adjusted thanks to an auxiliary fan.
With liquid cooling and a thermostatically controlled auxiliary fan, the H1 engine delivers consistent operation in all conditions.
No- Mc1000392352 Make Lmp Rpm 2920 For Sawang C Auxiliary Fan Of Govindpur Project EMD value : INR 126 Document Purchase Start date : 10 Mar 2018 Document Purchase End date : 21 Mar 2018 Opening date : 23 Mar 2018 Period of contract : 07 days
The auxiliary fan generated high sound levels at some frequencies, which made some data points unusable.
Offering a typical efficiency of over 90 percent, ROAL Electronics' SFA160 Series of AC/DC power supplies deliver 160 W of regulated DC power with standard output variants of 5,12,24 and 48 V The 2" x 4" x 1" devices use an auxiliary fan output of 12 V for system stand-by control voltage or to supply voltage for an external fan.
These include a new boom design with side stops; heavy reinforcements of the bogie; an autolube system; paint-on grip tread to reduce slips and falls during maintenance checks or repair work; a heavy duty auxiliary fan motor; an isolated transverter; remote diagnostic pressure taps; a bolt-on battery box; raised air intake; improved fuel filter access; larger wear bars around the engine tub; and smaller, higher output batteries.

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