CHED 110 |
| Six months ago I would have laughed at someone who said it would be possible to blow air into a tube and observe cold air coming out one end of the tube and hot air out of the other. The Ranque-Hilsch vortex tube is an astonishing device. It was first introduced by Georges Ranque in 1933 then with a detailed experimental description in 1946 by Hilsch. To this day, even the fundamental physics of this amazing device is not well understood. Today, vortex tubes are commercially available but costly. There have been many publications on this topic with each reporting astonishing temperature differentials. The objective of this project is to build a working vortex tube with parts solely from a local hardware store. While maximum temperature differentials are not achieved, the effect is still quite surprising and serves as an excellent activity to initiate classroom discussions of thermodynamics. |
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General Posters
7:30 PM-9:30 PM, Sunday, 10 September 2006 Moscone Center -- Hall D, Poster
Division of Chemical Education |