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  2. Holland Tunnel - Wikipedia

    en.wikipedia.org/wiki/Holland_Tunnel

    [6] [17] Exhaust ducts are located at the corners of the ventilation towers, while supply ducts are in the central portion. Compartments housing exhaust fans are positioned near the corners under the exhaust stacks, with the central portions of the fan floors free for intake fans, and the central section of each outer wall for air intakes. [27]

  3. Ventilation (architecture) - Wikipedia

    en.wikipedia.org/wiki/Ventilation_(architecture)

    For residential buildings, which mostly rely on infiltration for meeting their ventilation needs, a common ventilation rate measure is the air change rate (or air changes per hour): the hourly ventilation rate divided by the volume of the space (I or ACH; units of 1/h). During the winter, ACH may range from 0.50 to 0.41 in a tightly air-sealed ...

  4. Exhaust system - Wikipedia

    en.wikipedia.org/wiki/Exhaust_system

    An exhaust system is used to guide reaction exhaust gases away from a controlled combustion inside an engine or stove. The entire system conveys burnt gases from the engine and includes one or more exhaust pipes. Depending on the overall system design, the exhaust gas may flow through one or more of the following: Cylinder head and exhaust manifold

  5. Exhaust gas - Wikipedia

    en.wikipedia.org/wiki/Exhaust_gas

    Exhaust gas or flue gas is emitted as a result of the combustion of fuels such as natural gas, gasoline (petrol), diesel fuel, fuel oil, biodiesel blends, [1] or coal. According to the type of engine, it is discharged into the atmosphere through an exhaust pipe , flue gas stack , or propelling nozzle .

  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).

  7. I traveled to 50 of the top countries for tourism and ranked ...

    www.aol.com/traveled-50-top-countries-tourism...

    Plus, the skies are gloomy many days of the year, and I'm not a huge fan of the local cuisine. Full disclosure: I've been four times, and each visit occurred during the dark, cold winter months.

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