How our AMCA 210-16 test chamber works
The open loop tunnel is characterized by a length of 10m and a test chamber with a rectangular section 4.7m x 4.2m x 7m.
The airflow enters the chamber pushed by the fan under test and passes through an inlet which is characterized by an interchangeable duct, having set diameter and radius of curvature.
Then, the airflow passes through two grids to break the large-scale turbulence vortices thus to reduce the scale.
After that, in the center of the room the airflow meets a wall where converging nozzles of different diameters (according to different requirements) are installed.
At that point the airflow exits the chamber. At the end of the room an extraction duct with an HasconWing® fan together with a metal hopper extract the air and allow the closing and pressurization of the chamber.
Some pitot tubes, which measure the airflow pressure, and some thermocouples are also installed inside the chamber.