Fans (mechanical)
Rotating blades move air to cool or exhaust. Fans produce air flows with high volume and low pressure, as opposed to compressors which produce high pressures at a comparatively low volume.
FanMechanical20080608_103004_AlcatrazTour_3753B.jpg

String held up the door that covered the fan
(1 of 3) (1198 views)

Fans (mechanical) In Buildings
Alcatraz Island internal link San Francisco Bay, California
(Photo posted Wednesday 10 March 2010)
(Photo taken 10:30:04 Sunday 8 June 2008)
© 2010 Bryan Costales
Creative Commons Attribution-NonCommercial License
#AlcatrazTour_3753B


This fan was atop the gift shop, not a part of the prison itself. The red color of the blades was from rust.


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FanMechanical20080621_120358_TreasureIsland_0354BCX.jpg

Ventilation fan framed into a wall
(2 of 3) (1017 views)

Fans (mechanical) In Buildings
Treasure Island internal link San Francisco, California
(Photo posted Wednesday 10 March 2010)
(Photo taken 12:03:58 Saturday 21 June 2008)
© 2010 Bryan Costales
Creative Commons Attribution-NonCommercial License
#TreasureIsland_0354BCX


This fan was intended to move outside cool bay air into the room. Because Treasure Island is in the middle of the bay, it is surrounded by cool air, thereby providing cheap air conditioning.


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FanMechanical20080919_160500_MonoAzulCostaRica_5674BCX.jpg

Exhaust fan atop a restaurant
(3 of 3) (851 views)

Fans (mechanical) In Buildings
Mono Azul Hotel internal link Quepos internal link Costa Rica
(Photo posted Wednesday 10 March 2010)
(Photo taken 16:05:00 Friday 19 September 2008)
© 2010 Bryan Costales
Creative Commons Attribution-NonCommercial License
#MonoAzulCostaRica_5674BCX


This fan was found atop a hotel on the road from Quepos to Manuel Antonio. Sloths and snakes were seen in the area.


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