The Hilsch Vortex tube…

The Hilsch Vortex tube…

Old Amateur Scientist article, might need to (re)make this to see if it really works – “With nothing more than a few pieces of plumbing and a source of compressed air, you can build a remarkably simple device for attaining moderately low temperatures. It separates high-energy molecules from those of low energy. George O. Smith, an engineer of Rumson, N. I., discusses its theory and construction”Link.

12 thoughts on “The Hilsch Vortex tube…

  1. pffffft says:

    Apparently these do work as you can buy them commercially at under their vortex tubes section.

  2. kai_h says:

    See also the article on Wikipedia about Maxwell’s Demon:'s_demon
    for an interesting perspective on this device.
    There’s also a link in the wiki article to the Vortex Tume:
    with a slightly different design.

  3. DGary says:

    My dad’s on the tailend of building one, roughly based on the drawings above.

    He’s actually pretty much done with it, just hasn’t hooked it up to a compresser yet, for reasons yet unknown to me, he keeps fiddling with it instead. “Pre-emptive improvements” I call it.

    I’ll see if I can get these pictures he sent over scanned and posted in an appended post later today.

  4. DGary says:

    Flickr Hilsch Tube Gallery

    Only got 3 scanned, but they show the major components.

  5. M Bidot says:

    The Vortex Tube does work….although it has been slightly improved upon since Hilsch. I have a vortex tube set up on each of my cnc machines. is my supplier.

  6. Rick says:

    Problem with conventional vortex tube is that nozzle is too simple. A supersonic nozzle is best to take advantage of pressure properly with less waste. Another article from Scientific American’s “Amateur Scientist” discusses making a supersonic nozzle.
    Making a larger vortex-tube also improves efficiency because friction is very important in small nozzles and tubes. A large vortex tube using a leaf-blower should be able to heat or cool a house, I think.
    A scaled-up vortex-tube should be a great project for Make. Simply cutting plastic and glueing ABS and PVC plastic plumbing parts could make the project simple.

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