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  2. Vornado Air - Wikipedia

    en.wikipedia.org/wiki/Vornado_Air

    On August 14, 2014, the CPSC announced a recall of 79,000 Vornado-brand electric heaters (Vornado VH110 Whole Room Vortex electric space heaters) which had been made in China for Vornado Air, LLC, of Andover, and sold for about $60 at several major retail store chains and online sellers. The recall followed 29 reports of units overheating and ...

  3. Vortex engine - Wikipedia

    en.wikipedia.org/wiki/Vortex_engine

    The vortex is begun by briefly turning on a diffuse heater (83) and electrically driving the turbines (21) as fans. This moves mildly heated air into the vortex arena (2). The air must have only a mild temperature difference because large temperature differences increase mixing with cold ambient air and reduce efficiency.

  4. Vortex tube - Wikipedia

    en.wikipedia.org/wiki/Vortex_tube

    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 ]

  5. Ionospheric heater - Wikipedia

    en.wikipedia.org/wiki/Ionospheric_heater

    Platteville Atmospheric Observatory, Colorado, USA (stopped ionospheric heater research in 1984 but still operates as an atmospheric observatory). SPEAR (Space Plasma Exploration by Active Radar) [ 5 ] is an installation operated by UNIS (the University Centre in Svalbard ) adjacent to the EISCAT facilities at Longyearbyen in Svalbard , Norway ...

  6. Gravitation water vortex power plant - Wikipedia

    en.wikipedia.org/wiki/Gravitation_water_vortex...

    A schematic presentation of a gravitation water vortex power plant, showing the turbine in yellow. The gravitation water vortex power plant is a type of micro hydro vortex turbine system which converts energy in a moving fluid to rotational energy using a low hydraulic head of 0.7–3 metres (2 ft 4 in – 9 ft 10 in).

  7. Otto H. York - Wikipedia

    en.wikipedia.org/wiki/Otto_H._York

    In 1947, York founded a company called Otto H. York Industries. The company developed and marketed the Demister, a device made of knitted wire mesh pads used in the chemical and petroleum industries to improve the performance of process vessels. He built his business into a major New Jersey corporation, which was a leader in chemical recovery.