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2. Variable air volume - Wikipedia

   en.wikipedia.org/wiki/Variable_air_volume

   The fan maintains a constant static pressure in the discharge duct regardless of the position of the VAV box. Therefore, as the box closes, the fan slows down or restricts the amount of air going into the supply duct. As the box opens, the fan speeds up and allows more air flow into the duct, maintaining a constant static pressure. [11]

3. Constant air volume - Wikipedia

   en.wikipedia.org/wiki/Constant_air_volume

   However, variations such as CAV with reheat, CAV multizone, and CAV primary-secondary systems can serve multiple zones and larger buildings. In mid- to large-size buildings, new central CAV systems are somewhat rare. Due to fan energy savings potential, variable air volume (VAV) systems are more common. However, in small buildings and ...

4. Radiant heating and cooling - Wikipedia

   en.wikipedia.org/wiki/Radiant_heating_and_cooling

   Lower first costs are largely attributed to integration with structure and design elements, while lower life cycle costs result from decreased maintenance. However, a recent study on comparison of VAV reheat versus active chilled beams & DOAS challenged the claims of lower first cost due to added cost of piping [18]

5. Dedicated outdoor air system - Wikipedia

   en.wikipedia.org/wiki/Dedicated_outdoor_air_system

   DOAS air handling unit with heat recovery wheel and passive dehumidification. A dedicated outdoor air system (DOAS) is a type of heating, ventilation and air-conditioning system that consists of two parallel systems: a dedicated system for delivering outdoor air ventilation that handles both the latent and sensible loads of conditioning the ventilation air, and a parallel system to handle the ...

6. Heat recovery ventilation - Wikipedia

   en.wikipedia.org/wiki/Heat_recovery_ventilation

   Diagramatic operation of a thermal wheel Ljungström Air Preheater by Swedish engineer Fredrik Ljungström (1875–1964). A thermal wheel, also known as a rotary heat exchanger, or rotary air-to-air enthalpy wheel, energy recovery wheel, or heat recovery wheel, is a type of energy recovery heat exchanger positioned within the supply and exhaust air streams of air-handling units or rooftop ...

7. Review of Spectrum’s new Xumo streaming box with ... - AOL

   www.aol.com/review-spectrum-xumo-streaming-box...

   If you’re using the set-top box/cable receiver box, you’re paying $12.99 per month for single DVR service or $19.99 to $39.99 per month for multiple DVR service. Yearly cost: Cable box DVR ...

8. Air handler - Wikipedia

   en.wikipedia.org/wiki/Air_handler

   An air handler is usually a large metal box containing a blower, furnace or A/C elements, filter racks or chambers, sound attenuators, and dampers. [2] Air handlers usually connect to a ductwork ventilation system that distributes the conditioned air through the building and returns it to the AHU, sometimes exhausting air to the atmosphere and ...

9. It Was a Big Night Out for Taylor Swift at Super Bowl 59 - AOL

   www.aol.com/big-night-taylor-swift-super...

   At one point early in the game, Swift was shown on the jumbotron as members of the crowd emitted a loud round of boos, presumably led by Eagles fans. She responded with a side eye and a laugh.