Air Amplifiers utilize the coanda effect in which a jet of gas hugs the medial side of a curved surface to generate air motion. Using a little bit of compressed air as their power source, air amplifiers entrain in large volumes of surrounding air to make high velocity outlet flows. They create output flows around 25 times their consumption rate and are used to move air, smoke, fumes and gentle materials.

Their great selling point is that air amplifiers haven't any moving parts and no electricity is required. Opening the air gap escalates the airflow. While reducing the present air pressure decrease the outlet flow.

The issue is not the air mover itself. It does its job well. The problem is that you'll require to run an air compressor to make the motive air. It's occurred that the 22 kW motor or larger is run to create compressed air for an air mover whenever a 3 kW fan might have done exactly the same service.

When Maybe not To Use Air Amplifier
- Do not introduce an air mover into service where in fact the air compressor is running at its limit. The compressed air needed for the air mover can cause air to be drawn away from other applications and they will stop operating properly. Typically air operated control valves will suffer a pressure loss and won't open or close properly.
- Do not use an air mover in a seed air system when nothing else will be operated. An air mover can move a large volume of gas. However if a large electric motor must be run to work the air amplifier it becomes a pointless waste of electricity. Better to install a tiny electrically driven fan using much less power!
- Don't suck dust or moist vapours through them, as they'll block and you is likely to be cleaning them out time after time. The dust and moisture coat the within of the air mover or air amplifier and develop to eventually block the bore.
- Do not waste compressed air – it's terribly expensive! Regulate the compressed air supply so you use minimum level of air necessary. Use a solenoid valve on the compressed air supply to the air mover to show the air off once the air amplifier isn't in service.
- Check the material compatibility of the air mover materials of construction is suited to the chemical compatibility of the vapours being drawn through it.