1. Industrial Wall Fans for Building Ventilation
October 28, 2013
It is important to ensure that the exhaust fan has the capability to move stale air throughout the duct and ultimately to the outside. Here, we first need to understand what static pressure and equivalent duct length is.
Inside every duct, there is a constant pressure being exerted at any po...
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2. Industrial commercial Ventilation
October 28, 2013
Newer, larger buildings which are highly energy efficient due to sealed windows and heavy insulation primarily depend on mechanical ventilation. Older, small, and low occupancy office buildings can be adequately ventilated through natural sources which include air leakage through opened windows and ...
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3. Spark Resistant Ventilator Fan
October 28, 2013
Metal dust may have characteristics that require safeguards beyond those required for atmospheres containing the dust of aluminum, magnesium and their commercial alloys. For example, zirconium, thorium and uranium dust have extremely low ignition temperatures and minimal ignition energies lower than...
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4. Industrial Channel Pressure Blower
October 28, 2013
Most regenerative blowers are single stage: the air travels around the blower housing once and is discharged. Two-stage regenerative blowers can provide almost twice the pressure or vacuum of single-stage units. In a single-impeller, two-stage unit, air makes one revolution around the front side of ...
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5. Axial In-Line Fans for Building Ventilation
October 25, 2013
Axial flow fans performance ranges from 100 to 500,000 cubic feet per minute (3,000 to 15,000 cubic meters per minute). Impellers usually have blades with airfoil cross-sections.
In a typical axial fan, the effective progress of the air is straight through the impeller at a constant distance...
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6. Fan Blower Selection
October 25, 2013
The duct vaneaxial fan offers a broad performance range and good pressure capability at high static efficiency. It also offers the benefit of placing the bearings, shaft and drives on the negative pressure side of the propeller. This setup draws ambient air across those components during operation a...
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7. Industrial Power Roof Ventilator PRV
October 25, 2013
Reliable ventilation system prevents smoke logging, allows people to escape quickly, minimizes damages to property and contents and enables firemen to attack the fire without hindrance. Such power roof ventilators have the added advantage of providing normal day to day ventilation and in many cases ...
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8. High Pressure Regenerative Channel Blowers
October 25, 2013
There are four power-source choices for regenerative blowers: DC power, AC single-phase, AC three-phase, and engine. Features for regenerative blowers include: control panels and pressure or vacuum gauges. Most control panels include adjustment controls instead of a simple, regulator knob. Regenerat...
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9. High Pressure Radial Blowers and Fans
October 25, 2013
A radial fan can be just your normal portable fan or a ceiling fan is normal is most humid areas. When you do have a ceiling fan it's important to note that most of them must be put in by an experienced electrician otherwise you could have some serious problems with them. They are certainly a lot mo...
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10. Industrial and Process Ventilation
October 24, 2013
Blowers and fans include several types such as duct fans, roof and ceiling ventilators, wall mounted fans, pressure blowers, and freestanding units with different mounting options. For extreme conditions and plants, drum fans can be used to move even larger amounts of air. These types of fans come w...
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Author: Oleg Tchechel
