fan efficiency

См. также в других словарях:

• Fan — /fan, fahn/, n., pl. Fans, (esp. collectively) Fan. Fang. * * * I Rigid or folding handheld device used for cooling, air circulation, or ceremony or as a sartorial accessory throughout the world from ancient times. As evidenced by Egyptian… …   Universalium

• Fan Chan — (My Girl) Thai movie poster Directed by Vitcha Gojiew, Songyos Sugmakanan, Nithiwat Tharathorn, Witthaya Thongyooyong, Anusorn Trisirikasem, Kom …   Wikipedia

• fan — fan1 fanlike, adj. fanner, n. /fan/, n., v., fanned, fanning. n. 1. any device for producing a current of air by the movement of a broad surface or a number of such surfaces. 2. an implement of feathers, leaves, paper, cloth, etc., often in the… …   Universalium

• Centrifugal fan — Figure 1: Components of a centrifugal fan Figure 2: Centrifugal fan …   Wikipedia

• Ceiling fan — A ceiling fan is a fan, usually electrically powered, suspended from the ceiling of a room, that uses hub mounted rotating paddles to circulate air. Casablanca Fan Co. ceiling fan from the early 1980s. A ceiling fan rotates much mo …   Wikipedia

• Propulsive efficiency — In aircraft and rocket design, overall propulsive efficiency eta is the efficiency, in percent, with which the energy contained in a vehicle s propellant is converted into useful energy, to replace losses due to air drag, or gravity, or to… …   Wikipedia

• Computer fan — A 3D illustration of four 80 mm fans, a type of fan commonly used in personal computers (sometimes as a set, or mixed with other fan sizes). A computer fan is any fan inside, or attached to, a computer case used for cooling purposes, and may… …   Wikipedia

• Ducted fan — Bell X 22 on the tarmac A ducted fan is a propulsion arrangement whereby a fan, which is a type of propeller, is mounted within a cylindrical shroud or duct. The duct reduces losses in thrust from the tip vortices of the fan, and varying the… …   Wikipedia

• Attic fan — Not to be confused with a whole house fan An attic fan is a ventilation fan which regulates the heat level of a building s attic by exhausting hot air.Effective Attic Ventilation [http://www.dom.com/customer/efficiency/res/pdf/attic… …   Wikipedia

• Quiet PC — A quiet PC is a personal computer that makes little noise. Common uses for quiet PCs include video editing, sound mixing, home servers, and home theater PCs. A typical quiet PC uses quiet cooling and storage devices and energy efficient… …   Wikipedia

• Affinity laws — The affinity laws are used in hydraulics and HVAC to express the relationship between several variables involved in pump or fan performance (such as head, volumetric flow rate, shaft speed, and power). They apply to pumps, fans, and hydraulic… …   Wikipedia