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  2. Kitchen hood - Wikipedia

    en.wikipedia.org/wiki/Kitchen_hood

    A kitchen hood, exhaust hood, hood fan, extractor hood, or range hood is a device containing a mechanical fan that hangs above the stove or cooktop in the kitchen. It removes airborne grease, combustion products, fumes, smoke, heat, and steam from the air by evacuation of the air and filtration. [ 1 ]

  3. Giesl ejector - Wikipedia

    en.wikipedia.org/wiki/Giesl_ejector

    Steam locomotive with Giesl flat ejector in Austria Austrian 0-12-0T and 0-6-2T fitted with Giesl ejectors, Eisenerz depot, August 1971 Smokebox with Giesl-ejector on the ČSD 534.0432 in museum Lužná u Rakovníka. A Giesl ejector is a suction draught system for steam locomotives that works on the same principle as a feedwater injector.

  4. Chimney - Wikipedia

    en.wikipedia.org/wiki/Chimney

    A chimney cowl or wind directional cap is a helmet-shaped chimney cap that rotates to align with the wind and prevent a downdraft of smoke and wind down the chimney. An H-style cap is a chimney top constructed from chimney pipes shaped like the letter H. It is an age-old method of regulating draft in situations where prevailing winds or ...

  5. Centrifugal fan - Wikipedia

    en.wikipedia.org/wiki/Centrifugal_fan

    Figure 1: Components of a centrifugal fan An external motor belt driven inline centrifugal fan discharging inline to the exterior of a building through a duct. Unlike non-inline/non-concentric impeller casing design with a cutoff blade above, the concentrically symetric cylinder casing and impeller geometry of inline type redirects the outflow around so that it is parallel to the inflow of gases.

  6. Fume hood - Wikipedia

    en.wikipedia.org/wiki/Fume_hood

    Air flow in fume hood demonstrated by dry ice fog. A fume hood is typically a large piece of equipment enclosing six sides of a work area (including a movable sash window or door), the bottom of which is most commonly located at a standing work height (at least 28 to 34 inches (71 to 86 cm) above the floor).

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