The duct system these three machines is fully restricted. Also, the pressure difference is zero. Furthermore, their efficiencies is determined by the work done to move air for every second. The work done is basically the product of the flow rate and the pressure difference.
In most engineering applications, air blowers are designed to achieve the following key functions: air flow, cooling and heating. They come in different designs; this may range from simple to more complex shapes. They are designed for specific applications. For example:
The hot air blowers are used to direct hot or warm air to cooler areas. They are used in shrinking, melting, drying, welding, etc. A good example is the industrial driers.
There are other applications where blowers are mainly used to promote air flow. They can be used to decontaminate certain regions by directing poisonous gases in another direction. They are used in coating operations. Basically, air blowers play a significant role in a number of manufacturing processes.
Are there any other aspects you wish to know about your blower? You can contact use for more insights.