Parts List for Ranque-Hilsch Effect Tube

1/2" copper piping, cut into two lengths: 1 m and 25 cm. Why does it look like the long one is more than 1 m? I dunno. Maybe I hadn't cut it yet.

I used these lengths because Hilsch (see reference on main page) says that the long run should be 50 times the diameter of the piping. I used 1/2" piping, and that told me to use about 64 cm. I then added more length for the purposes of overkill (piping is cheap).

Copper piping

P. David Buchan