The Basics About An Axial Fan

June 18, 2014

With ever increasing technology, several methods of moving fluids and air in industrial systems are now available. Use of fans is among those methods. Axial fan refers to a specific model of compressor that raises the pressure in air that passes through it. It incorporates a shaft onto which blades attach. The blades are responsible for forcing air parallel travel to the shaft.

The ability of these devices to blow air along the axis is the origin of their name. They work in the same way as centrifugal fans with the difference lying in the mechanism. The propeller draws air from outside and discharges it along the same axial direction. The propeller is responsible for all air movements that occur in this device. The propeller attains this through creation of pressure difference.

The total number of blades and the design in each blade are the major parameters to consider when making a purchase. Blades can be manufactured from different materials like wood, alloys, and aluminium. The number of blades is normally small ranging from 2 to 6 compared to the high number in ducted fans. Blade number is normally low to stop them from limiting the high flow rate at which the blades operate.

The blades are also made long and can assume different shapes. Others have different blade sections along the radius. The low number of blades makes velocity triangles and rotor geometry meaningless. These products are designed to perform best in environments with hot temperatures, usually within the range of 70 degrees Celsius. They come with different kinds of bearings to work in humid environments. The cheaper models incorporate sleeve bearings which do not last long.

These gadgets find use in many industries including chemical, woodworking, ceramic, steel, cement, and mining. Common industrial applications are building ventilation, dust removal and collection, combustion air, fume removal, and heat recovery. Propellers also find application in cooling towers, ships, helicopters, wind tunnels, hydrofoils, and hovercrafts. When they are applied for propulsion, the efficiency is the major parameter considered. Flow rate, efficiency, power consumption, and pressure rise are however all of importance if the device is used as a fan.

These products are also in common use in computer systems as key cooling components. Those that are used in computer systems are installed with ball or fluid bearings to achieve consistent operation and maximum durability. Models used in computing devices are very costly but also very efficient at power consumption and operation. Normally the shaft is placed in line with the component to be cooled to blow air on it or draw air past it.

The relationship between pressure variation and volume flow rate is normally of great concern during the manufacture process. As the flow rate goes up from zero mark, efficiency rises to up to a given point before it begins to deteriorate. Power output and pressure are also vary diversely with the rise in performance.

These appliances have varied shapes and sizes. They can also be custom-built to suit specific applications. The cost differs according to power dissipation, quality, size, and material used in construction among many other factors.

When you are looking for information about an axial fan, pay a visit to our web pages here today. You can see details at now.

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