Air cooler. The core of the system is the vortex chamber, which is connected to 2 opposed
tubes, one of which features a valve. When the compressed air is injected
tangentially in the chamber, this causes the rotary movement of air towards one of
the exits. This vortex moves rotating at high speed and brushing against the inner
side of the tube, increasing in temperature; the valve placed at the hot air outlet
enables some of it to be exhausted. The remaining part goes back, creating a low
pressure vortex moving towards the other exit and giving away heat to the first
vortex. So, this flow is much colder.
The ∆T generated is inversely proportional to the volume of the flow. The
differences in temperature are considerable and can reach -40°C for the cold flow
and 60°C for the hot flow.
