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A centrifugal fan is a device that moves air or gases in a direction at an angle to the incoming fluid. It is also called a blower, squirrel-cage fan, or biscuit blower. Learn about its history, construction, drive mechanisms, and variations.
A centrifuge is a device that uses centrifugal force to separate fluids or solids based on their densities. Learn about the history, design and applications of different types of centrifuges in various fields, such as laboratory, industrial, medical and nuclear.
An impeller, or impellor, is a rotating device that increases the pressure and flow of a fluid. Learn about different types of impellers, such as open, closed, screw, and water jet impellers, and their uses in pumps, compressors, water jets, tanks, and medicine.
The air or gas inside the spinning fan is thrown off the outside of the wheel, to an outlet at the housing's largest diameter. This simultaneously draws more air or gas into the wheel through the central hole. [1] Inlet and outlet ducting are often attached to the fan's housing, to supply and/or exhaust the air or gas to the industry's ...
A fan is a powered machine that creates a flow of air by rotating blades or vanes. Learn about the different types of fans, their history from ancient to modern times, and their various uses in climate control, ventilation, cooling and more.
Bond energy is the average value of the gas-phase bond-dissociation energy for all bonds of the same type within the same chemical species. Learn how to calculate and compare bond energies, and how factors such as atomic radius and electronegativity affect them.
Chemistry is the scientific study of the properties and behavior of matter, its composition, structure, properties, behavior and changes. Learn about the etymology, history, branches and concepts of chemistry, such as atom, element, compound, reaction, equation, law and more.
Learn about the history, principle, types and applications of induction motors, AC electric motors that use electromagnetic induction to produce torque. Find out how induction motors differ from synchronous motors and how they are used in variable-speed drives.