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  2. Room air distribution - Wikipedia

    en.wikipedia.org/wiki/Room_air_distribution

    Displacement ventilation systems supply air directly to the occupied zone.The air is supplied at low velocities to cause minimal induction and mixing. This system is used for ventilation and cooling of large high spaces, such as auditorium and atria, where energy may be saved if only the occupied zone is treated rather than trying to control the conditions in the entire space.

  3. Underfloor air distribution - Wikipedia

    en.wikipedia.org/wiki/Underfloor_air_distribution

    Underfloor air distribution (UFAD) is an air distribution strategy for providing ventilation and space conditioning in buildings as part of the design of a HVAC system. UFAD systems use an underfloor supply plenum located between the structural concrete slab and a raised floor system to supply conditioned air to supply outlets (usually floor ...

  4. Heating, ventilation, and air conditioning - Wikipedia

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

    The HVAC industry is a worldwide enterprise, with roles including operation and maintenance, system design and construction, equipment manufacturing and sales, and in education and research. The HVAC industry was historically regulated by the manufacturers of HVAC equipment, but regulating and standards organizations such as HARDI (Heating, Air ...

  5. Air Movement and Control Association - Wikipedia

    en.wikipedia.org/wiki/Air_Movement_and_Control...

    The Air Movement and Control Association International, Inc. (AMCA) is an international trade body that sets standards for Heating, Ventilation and Air Conditioning equipment. It rates fan balance and vibration, aerodynamic performance, air density, speed and efficiency.

  6. Duct (flow) - Wikipedia

    en.wikipedia.org/wiki/Duct_(flow)

    Ducts for air pollution control in a 17000 standard cubic feet per minute regenerative thermal oxidizer (RTO). A round galvanized steel duct connecting to a typical diffuser Fire-resistance rated mechanical shaft with HVAC sheet metal ducting and copper piping, as well as "HOW" (Head-Of-Wall) joint between top of concrete block wall and underside of concrete slab, firestopped with ceramic ...

  7. Air distribution - Wikipedia

    en.wikipedia.org/wiki/Air_distribution

    In Heating, ventilation, and air conditioning. Forced-air systems; Room air distribution; Underfloor air distribution; More generally, ventilation includes both passive ventilation and active ventilation; Special cases include: Ventilation (firefighting) Ventilation (mining) It may also refer to the distributions of gases, aerosols, or heat in air