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  2. Turning vanes (HVAC) - Wikipedia

    en.wikipedia.org/wiki/Turning_vanes_(HVAC)

    HVAC turning vanes are sheet metal devices inside of mechanical ductwork used to smoothly direct air inside a duct where there is a change in direction, by reducing resistance and turbulence. See also

  3. Air handler - Wikipedia

    en.wikipedia.org/wiki/Air_handler

    Air flow control (CAV or VAV air handlers) Zone control (single zone or multi zone air handlers) Fan location (draw-through or blow-through) Direction of outlet air flow (front, up, or down) Package model (horizontal or vertical) But, the first method is very usual in HVAC market. In fact, most of the company advertise their products by air ...

  4. Duct leakage testing - Wikipedia

    en.wikipedia.org/wiki/Duct_leakage_testing

    As air is delivered into the ductwork, pressure builds and forces air out of all of the openings in the various ductwork connections or through the seams and joints of the furnace or air-conditioner. The tighter the ductwork system (e.g. fewer holes), the less air is needed from the fan to create a change in the ductwork pressure.

  5. Omron Releases "D6F-D" 2-Axis MEMS Flow Sensor Designed ... - AOL

    www.aol.com/news/2012-12-05-omron-releases-d6f-d...

    2-axis flow sensors are able to not only detect airflow velocity but also direction. Continuously monitoring airflow direction makes it possible to ensure that air is always flowing exactly where ...

  6. Blower door - Wikipedia

    en.wikipedia.org/wiki/Blower_door

    Single fan blower door system. A blower door is a machine used to perform a building air leakage test. It can also be used to measure airflow between building zones, to test ductwork airtightness and to help physically locate air leakage sites in the building envelope.

  7. Duct (flow) - Wikipedia

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

    To use flexible ducting in a system, make sure to pull the duct tight so you get the full internal diameter. This reduces resistance and improves airflow, as well as ventilation efficiency. Minimize bends and kinks as much as possible, since they can affect how well the airstream flows through the ductwork.

  8. Centrifugal fan - Wikipedia

    en.wikipedia.org/wiki/Centrifugal_fan

    A centrifugal fan is a mechanical device for moving air or other gases in a direction at an angle to the incoming fluid. Centrifugal fans often contain a ducted housing to direct outgoing air in a specific direction or across a heat sink; such a fan is also called a blower, blower fan, or squirrel-cage fan (because it looks like a hamster wheel).

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!