When working with a cooling application, many customers will immediately look to the Vortex Tube and Spot Cooling product lines. While this may be the best solution for some applications, cold air is not always the best method that we have available for cooling. EXAIR’s Air Amplifiers are very effective at reducing the temperature of a part without requiring cold air. Due to their ability to draw in large volumes of ambient air, we can move a lot of air across the surface of the part and quickly lower the temperature. The key to success, is remembering that the word “cooling” is relative. So long as we have a reasonable Delta between ambient temperature and the starting temperature, cooling can occur.
I like to compare this to blowing on a hot cup of coffee just as it’s been brewed. The temperature of the air coming from your mouth is around 98.6°F, the same as your body temperature. Coffee can be as hot as 185°F when fresh. Due to the temperature differential between your breath and the hot coffee, we’re able to achieve a reasonable amount of cooling just by simply blowing across the surface. Typically, when the target temperature of the part or material needs to be around ambient temperature or higher, the best solution for cooling is going to be an Air Amplifier (or sometimes an Air Knife!).
EXAIR’s Adjustable Air Amplifiers are available in both Stainless Steel and Aluminum from sizes ranging from ¾”-4” on the air outlet. The outlet can be ducted , or it can be used as-is. The air gap of the Adjustable Air Amplifier is infinitely adjustable, allowing you to regulate both the air consumption and outlet flow from a “breeze” to a “blast”. In addition to the standard Adjustable Air Amplifiers, we also have a High Temperature Air Amplifier available that is capable of withstanding temperatures as high as 700°F.
Air Amplifiers can be used in a variety of different applications. Not only can they be used in applications requiring cooling, but the air entrainment properties of the amplifier can be used to exhaust smoke as discussed in this application at a foundry. An Adjustable Amplifier can also be used for drying or cleaning parts as well as for conveying light materials.
If you’re using fans for process cooling, speed things up with an EXAIR Air Amplifier. They’re on the shelf, in-stock, and ready to ship today with an order received by 2:00 ET.
Tyler Daniel, CCASS
Application Engineer
E-mail: [email protected]
X: @EXAIR_TD
