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2. Industrial fan - Wikipedia

   en.wikipedia.org/wiki/Industrial_fan

   Industrial fans and blowers are machines whose primary function is to provide and accommodate a large flow of air or gas to various parts of a building or other structures. This is achieved by rotating a number of blades, connected to a hub and shaft, and driven by a motor or turbine .

3. Fan (machine) - Wikipedia

   en.wikipedia.org/wiki/Fan_(machine)

   Fans used to cool electrical equipment or in engines or other machines cool the equipment directly by exhausting hot air into the cooler environment outside of the machine so that cooler air flows in. Three main types of fans are used for moving air, axial, centrifugal (also called radial) and cross flow (also called tangential).

4. Centrifugal fan - Wikipedia

   en.wikipedia.org/wiki/Centrifugal_fan

   Figure 1: Components of a centrifugal fan An external motor belt driven inline centrifugal fan discharging inline to the exterior of a building through a duct. Unlike non-inline/non-concentric impeller casing design with a cutoff blade above, the concentrically symetric cylinder casing and impeller geometry of inline type redirects the outflow around so that it is parallel to the inflow of gases.

5. Pamaypay - Wikipedia

   en.wikipedia.org/wiki/Pamaypay

   Pamaypay for sale in Iriga City, Philippines Yellow antique abaniko. Pamaypay (Tagalog pronunciation: [pɐmaɪˈpaɪ], puh-my-PY), also known as paypay, payupas, buri fan, or anahaw fan, [1] [2] [3] is a type of traditional hand-held fan from the Philippines. It is typically made of woven buri palm or anahaw palm leaves.

6. High-volume low-speed fan - Wikipedia

   en.wikipedia.org/wiki/High-volume_low-speed_fan

   A High-volume low-speed fan. A high-volume low-speed (HVLS) fan is a type of mechanical fan greater than 7 feet (2.1 m) in diameter. [1] HVLS fans are generally ceiling fans although some are pole mounted. HVLS fans move slowly and distribute large amounts of air at low rotational speed– hence the name "high volume, low speed."

7. Condenser (heat transfer) - Wikipedia

   en.wikipedia.org/wiki/Condenser_(heat_transfer)

   A condenser unit used in central air conditioning systems typically has a heat exchanger section to cool down and condense incoming refrigerant vapor into liquid, a compressor to raise the pressure of the refrigerant and move it along, and a fan for blowing outside air through the heat exchanger section to cool the refrigerant inside. A typical ...