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  2. Vortex tube - Wikipedia

    en.wikipedia.org/wiki/Vortex_tube

    Vortex tubes are used for cooling of cutting tools (lathes and mills, both manually-operated and CNC machines) during machining. The vortex tube is well-matched to this application: machine shops generally already use compressed air, and a fast jet of cold air provides both cooling and removal of the chips produced by the tool.

  3. Vortex engine - Wikipedia

    en.wikipedia.org/wiki/Vortex_engine

    At this time, low-temperature heat from an external powerplant drives the updraft and vortex via a conventional crossway cooling tower (61). As the air leaves the louvers (3, 5) more rapidly, the vortex increases in speed. The air's momentum causes centrifugal forces on the air in the vortex, which reduce pressure in the vortex, narrowing it ...

  4. Vortex - Wikipedia

    en.wikipedia.org/wiki/Vortex

    The core of a vortex in air is sometimes visible because water vapor condenses as the low pressure of the core causes adiabatic cooling; the funnel of a tornado is an example. When a vortex line ends at a boundary surface, the reduced pressure may also draw matter from that surface into the core.

  5. Cooling tower - Wikipedia

    en.wikipedia.org/wiki/Cooling_tower

    A cooling tower is a device that rejects waste heat to the atmosphere through the cooling of a coolant stream, usually a water stream, ... creating a vortex. Three ...

  6. Polar vortex to bring freezing weather to US

    www.aol.com/news/polar-vortex-bring-freezing...

    Freezing weather is expected to hit the eastern US in the coming days as the polar vortex moves. Temperatures are expected to remain below average for the south-east and East Coast through the ...

  7. First polar vortex of 2025 will bring dangerously frosty ...

    www.aol.com/first-polar-vortex-2025-bring...

    The beginning of 2025 will be marked by the year’s first polar vortex, ... This week, as a cooling trend expands eastward, between 6-12 inches are forecast in that region by Saturday morning.

  8. 'The time has come': Why the August jobs report keeps ... - AOL

    www.aol.com/finance/time-come-why-august-jobs...

    With continued cooling in the job market and confidence that inflation is now dropping back toward the central bank's 2% target, two members of the Fed said Friday the time has come to cut rates ...

  9. Refrigeration - Wikipedia

    en.wikipedia.org/wiki/Refrigeration

    Other methods of refrigeration include the air cycle machine used in aircraft; the vortex tube used for spot cooling, when compressed air is available; and thermoacoustic refrigeration using sound waves in a pressurized gas to drive heat transfer and heat exchange; steam jet cooling popular in the early 1930s for air conditioning large ...