Air Amplifier

thingiverse

This is an compressed Air Amplifier. Compressed air flows through the inlet into an annular chamber. It is them throttled through a ring nozzle at high velocity. The airstream adheres to the Coanda profile which directs flow to the outlet. Low pressure area is created at the center creating a high volume flow of air into the primary airstream. The combination of primary and surrounding air exhausts create high volume and high velocity flow. (http://www.exair.com/en-US/Primary%20Navigation/Products/Air%20Amplifiers/Pages/Air%20Amplifiers%20How%20they%20work.aspx) Print Settings Printer: QIDI Tech Rafts: No Supports: Yes Resolution: .2 Infill: 10% Notes: Small pic is needed to remove support in the annular chamber. I had no problems adding supports and removing them. How I Designed This Exair.com I modeled the amplifier from a Exair design from Exair.com Project: Air Amplifier Project Name: Air Amplifier Overview & Background: Air Amplifiers are used for blow off or vacuum applications. A Coanda profile is used to direct the airflow to the outlet creating a suction on one end and high volume and high velocity air flow at the other end. Objectives: Students will learn about the Coanda profile, CFM, annular chambers, velocity air flow, and volume of air flow Audiences: High school to college students Subjects: Math: Science: Physics: Skills: Pneumatics Lesson/Activity: 1 Lesson on Pneumatics: 2 Parametric CAD software: 3 3D printer: 4 Compressed Air: 5 Pneumatic measuring instruments: Duration: 2-8 weeks Preparation: Lesson in Pneumatics: References: Brian S. Elliott, Compressed Air Operations Manual, McGraw Hill Book Company, 2006, ISBN 0-07-147526-5. Heeresh Mistry, Fundamentals of Pneumatic Engineering, Create Space e-Publication, 2013, ISBN 1-49-372758-3. http://www.exair.com/en-US/Primary%20Navigation/Products/Air%20Amplifiers/Pages/Air%20Amplifiers%20How%20they%20work.aspx Rubric & Assessment: Students will alter or design a Air Amplifier and measure airflow and velocity.