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Centrifugal pump - Saylor.org

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Centrifugal pump A centrifugal pump is a rotodynamic pump that uses a rotating impeller to increase the pressure of a fluid. Centrifugal pumps are commonly used to move liquids through a piping system. The fluid enters the pump impeller along or near to the rotating axis and is accelerated by the impeller, flowing radially outward into a diffuser or volute chamber (casing), from where it exits into the downstream piping system. Centrifugal pumps are used for large discharge through smaller heads. History Warman centrifugal pump in a Coal Handling and Preparation Plant (CHPP) application According to Reti, the Brazilian soldier and historian of science, the first machine that could be characterized as a centrifugal pump was a mud lifting machine which appeared as early as 1475 in a treatise by the Italian Renaissance engineer Francesco di Giorgio Martini.[1] True centrifugal pumps were not developed until the late 17th century, when Denis Papin made one with straight vanes. The curved vane was introduced by British inventor John Appold in 1851. How it works Like most pumps, a centrifugal pumps converts mechanical energy from a motor to energy of a moving fluid; some of the energy goes into kinetic energy of fluid motion, and some into potential energy, represented by a fluid pressure or by lifting the fluid against gravity to a higher level. The transfer of energy from the mechanical rotation of the impeller to the motion and pressure of the fluid is usually described in terms of centrifugal force, especially in older sources written before the modern concept of centrifugal force as a fictitious force in a rotating reference frame was well articulated. The concept of centrifugal force is not actually required to describe the action of the centrifugal pump. In the modern centrifugal pump, most of the energy conversion is due Cutaway view of centrifugal pump to the outward force that curved impeller blades impart on the fluid. Invariably, some of the energy also pushes the fluid into a circular motion, and this circular motion can also convey some energy and increase the pressure at the outlet. The relationship between these mechanisms was described, with the typical mixed conception of centrifugal force as known as that time, in an 1859 article on centrifugal pumps, thus:[2] Centrifugal pump To arrive by a simpler method than that just given at a general idea of the mode of action of the exterior whirlpool in improving the efficiency of the centrifugal pump, it is only necessary to consider that the mass of water revolving in the whirlpool chamber, round the circumference of the wheel, must necessarily exert a centrifugal force, and that this centrifugal force may readily be supposed to add itself to the outward force generated within the wheel; or, in other words, to go to increase the pumping power of the wheel. The outward force generated within the wheel is to be understood as being produced entirely by the medium of centrifugal force if the vanes of the wheel be straight and radial; but if they be curved, as is more commonly A centrifugal pump uses a spinning "impeller," the case, the outward force is partly produced through the which normally has backward-swept blades that medium of centrifugal force, and partly applied by the vanes to directly push water outward. the water as a radial component of the oblique pressure, which, in consequence of their obliquity to the radius, they apply to the water as it moves outwards along them. On this subject it is well to observe that while the quantity of water...

2013 GMC CoMMerCial TruCks

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EMERGENCY POWER KIT FOR CHEVROLET VOLT

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EMERGENCY POWER KIT FOR CHEVROLET VOLT FEATURES:  Utilizes 12V accessory power system of the Volt  Provides backup power without needing to run the Volt’s gasoline engine*  Includes all hardware and accessories designed specifically for the Volt  No drilling or other modifications to the Volt are needed  Quick disconnect system allows for easy connection of inverter  Maximum Inverter Size supported: 1000W with 2000W surge.  Installation Time: 30 minutes DESCRIPTION: The EVEX-1000W is a do-it-yourself** wiring kit to provide emergency backup power from your Chevrolet Volt. The kit is custom-designed for the Volt, to allow for a hidden installation with power connector access through the fuse box compartment on the left-side of the hatch storage area. The kit includes a fuse holder with fuse, heavy duty wires cut to length with soldered leads and pre-installed wire terminals, as well as a heavy duty connector set to allow quick connections to the inverter of your choice as needed. The kit is designed for a maximum inverter size of 1000W with 2000W surge. This maximum size is designed to work within the limits of the Volt’s 12V power electronics design. WHAT’S INCLUDED:  Fuse holder and fuse, with heavy duty Velcro to secure holder  4AWG wiring for positive and negative 12V connections  8AWG wiring for chassis connection (required by some inverters)  High current DC connector for quick inverter connect when emergency power is needed  Step by step instruction manual for installation  1000W true sine wave inverter (optional, select when ordering) More details including frequently asked questions are available on our website. * The vehicle is required to be turned on for emergency back-up power. In most scenarios, the engine will not run, and the 12V system will get its power from the Volt’s high voltage traction battery. In some scenarios however, the engine may cycle on and off intermittently. This may occur if the high voltage traction battery is depleted, if the vehicle is in mountain or hold mode, if temperatures are below 40F, or if the vehicle’s hood is open. Always make sure vehicle is in a properly ventilated area! Exhaust will be emitted when engine is running. ** If you are not experienced and comfortable with 12V wiring, please seek the assistance of a professional. EVEX-1000W sales@evextend.com  http://www.evextend.com

How to Lose Weight Effortlessly and Keep It Off Forever

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A Look at Top Indian Restaurants in Orlando

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Orlando flaunts a number of Indian restaurants that serve authentic delicacies that are true to their origin

Call them Cup Cakes or Gift to Self- Worth the Invention!

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It’s said good things come in small packages and this is as true for a cup cake. A cupcake is just a smaller version of created to serve one person. Just like a regular cake, the cupcake consists of an icing and other cake decorations including names tame tags.

TouchTone Wireless Chief Executive Officer James D'Asti's Family Learns What 'Hero' Means from the W

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1888 PressRelease - As a sponsor of the Wounded Warrior Amputee Football Team (WWAFT) charity flag football game to raise awareness and support for military servicemen and women who lost limbs while serving in Iraq or Afghanistan, TouchTone Wireless Chief Executive Officer James D'Asti's family learned the true meaning of the word "hero."

Mata Pelajaran : BAHASA INGGRIS - Universitas Esa Unggul

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Male Organ Oddities Strange but True Facts about the Manhood

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It turns out that the male organ, which is generally viewed as a pretty straightforward tool, has a few little secrets up its… well. Here is a look at some of the weirdest facts about the manhood.

Selective Casino Bonus.

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Right away, since everything is similar to the true club the online clubhouse have parcel to offer for the bettors also.

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