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The vortex tube, also known as the Ranque-Hilsch vortex tube, is a mechanical device that separates a compressed gas into hot and cold streams. The gas emerging from the hot end can reach temperatures of 200 °C (390 °F), and the gas emerging from the cold end can reach −50 °C (−60 °F). [ 1 ]
Georges-Joseph Ranque (7 February 1898 – 15 January 1973) was the inventor of the Ranque-Hilsch vortex tube, which generates streams of hot and cold gas from a stream of compressed gas. Georges-Joseph Ranque was born in Ambérieu-en-Bugey , France in 1898. [ 1 ]
Lozère (author of File:Tube de Ranque-Hilsch.png) Other versions: File:Ranque-Hilsch Vortex Tube Fixed.svg: Licensing. The original image File:Tube de Ranque-Hilsch.png:
A note on the bathtub vortex, General Dynamics/Astronautics, San Diego, California Unsteady, viscous, circular flow Part 3. Application to the Ranque-Hilsch vortex tube , Convair Scientific Research Laboratory, San Diego
Figure 1: Schematic drawing of a Stirling-type single-orifice PTR. From left to right: a compressor, a heat exchanger (X 1), a regenerator, a heat exchanger (X 2), a tube (often called the pulse tube), a heat exchanger (X 3), a flow resistance (orifice), and a buffer volume. The cooling is generated at the low temperature T L. Room temperature ...
1983 – Orifice-type pulse tube refrigerator invented by Mikulin, Tarasov, and Shkrebyonock 1986 – Karl Alexander Müller and J. Georg Bednorz discover high-temperature superconductivity 1995 – Eric Cornell and Carl Wieman create the first [ 17 ] Bose–Einstein condensate , using a dilute gas of Rubidium-87 cooled to 170 nK.
After mixing all the ingredients together, I let the mixture chill in the refrigerator for 30 minutes. Then, with clean and slightly damp hands, I roll them into balls the size of quarters.
A 3 He/ 4 He dilution refrigerator is a cryogenic device that provides continuous cooling to temperatures as low as 2 mK, with no moving parts in the low-temperature region. [ 1 ] [ 2 ] The cooling power is provided by the heat of mixing of the helium-3 and helium-4 isotopes.
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