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  2. 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 ...

  3. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    Central, "all-air" air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are often installed in North American residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. [32] (Minisplit ...

  4. Passive ventilation - Wikipedia

    en.wikipedia.org/wiki/Passive_ventilation

    The quality of air it introduces in buildings may be polluted for example due to proximity to an urban or industrial area (although this can also be a factor in wind-driven ventilation) Natural ventilation in buildings can rely mostly on wind pressure differences in windy conditions, but buoyancy effects can a) augment this type of ventilation ...

  5. Air door - Wikipedia

    en.wikipedia.org/wiki/Air_door

    A typical commercial air curtain enclosure. In North America, the more commonly-used term for an air door is "air curtain". The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) defines an air door as follows: "In its simplest application, an air curtain is a continuous broad stream of air circulated across a doorway of a conditioned space.

  6. Shed - Wikipedia

    en.wikipedia.org/wiki/Shed

    Hopkins and Riley followed up that book with Inventions from the Shed (1999) [17] and a 5-part film documentary series with the same name. [18] Gordon Thorburn also examined the shed proclivity in his book Men and Sheds (2002), [19] as did Gareth Jones in Shed Men (2004). [20] Recently, "Men's Sheds" have become common in Australia. [21]

  7. Windcatcher - Wikipedia

    en.wikipedia.org/wiki/Windcatcher

    The courtyard air will become stably stratified, the hot air floating on top of the cold air with little mixing. [14]: Ch. 6 The fact that the openings are at the top will trap the cool air below, though it cannot cause the temperature to drop below the nightly minimum temperature.

  8. Airship hangar - Wikipedia

    en.wikipedia.org/wiki/Airship_hangar

    After the Second World War worldwide only one big airship shed had been built: The one in Brand south of Berlin for the construction of the Cargolifter AG airship. With a length of 360 metres (1,180 ft), a width of 210 metres (690 ft) and a height of 107 metres (351 ft), it is one of the largest structures in the world without interior support ...

  9. List of protected areas of the Philippines - Wikipedia

    en.wikipedia.org/wiki/List_of_protected_areas_of...

    Protected areas in the Philippines encompasses 4,620,000 hectares (11,400,000 acres) of terrestrial areas and 3,140,000 hectares (7,800,000 acres) of marine areas. [1] They are managed according to the following classifications described in Section 4 of the National Integrated Protected Areas System Act of 1992 (NIPAS Act).

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