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Handheld Brise fan from 1800. A handheld fan, or simply hand fan, is a broad, flat surface that is waved back-and-forth to create an airflow. Generally, purpose-made handheld fans are folding fans, which are shaped like a sector of a circle and made of a thin material (such as paper or feathers) mounted on slats which revolve around a pivot so that it can be closed when not in use.
Download as PDF; Printable version; ... Attic fan; Axial fan design; C. Casablanca Fan Company; ... European hand fans in the 18th century; F.
A household electric fan A large cylindrical fan. A fan is a powered machine that creates airflow. A fan consists of rotating vanes or blades, generally made of wood, plastic, or metal, which act on the air. The rotating assembly of blades and hub is known as an impeller, rotor, or runner. Usually, it is contained within some form of housing ...
Orientation: Normal: Horizontal resolution: 72 dpi: Vertical resolution: 72 dpi: Software used: Microsoft Windows Photo Viewer 6.1.7600.16385: File change date and time
A drawing the intended locations of plant items and service routes in such detail as to indicate the design intent. The main features of detailed design drawings should be as follows: Plan layouts to a scale of at least 1:100. Plant areas to a scale of at least 1:50 and accompanied by cross-sections.
In Spring 2010, the Museum was moved into the H2hotel building [5] [6] [7] with a connected conference room to conduct lectures and the free Art Program it provides to local schools. [citation needed] The Hand Fan Museum is currently [when?] managed by Liz Keeley. [6] The collection has been featured in the book Fantastic Fans. [8]
The fan is designed to produce a pressure difference, and hence force, to cause a flow through the fan. Factors which determine the performance of the fan include the number and shape of the blades. Fans have many applications including in wind tunnels and cooling towers. Design parameters include power, flow rate, pressure rise and efficiency. [1]
The Fan Museum, which opened in 1991, is the world's first museum dedicated to the preservation and display of hand fans. [1] It is located within two grade II* listed houses that were built in 1721 within the Greenwich World Heritage Site on Croom's Hill in southeast London , England. [ 2 ]