Publication

One-dimensional analysis of full load draft tube surge

François Avellan, Mohamed Farhat, Christophe Nicolet
2008
Conference Papers

Abstract

A previous report by the present authors [1] clarified the diffuser effect of the draft tube and the effects of swirl in the runner downstream on the hydraulic instabilities in power generation plants. The present study was intended to study the effect of finite sound velocity in the penstock, based on a similar one-dimensional analytical model as Ref. [1]. It was found that the introduction of finite sound velocity in the penstock results in the occurrence of higher order frequency modes. The diffuser and swirl effects on each frequency mode are examined in the present study.

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François Avellan, Mohamed Farhat, Christophe Nicolet
2008
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/f6f48a9f-1878-4704-bda0-270adb902466

About this result

Related concepts (15)

Power station

A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the generation of electric power. Power stations are generally connected to an electrical grid. Many power stations contain one or more generators, rotating machine that converts mechanical power into three-phase electric power. The relative motion between a magnetic field and a conductor creates an electric current. The energy source harnessed to turn the generator varies widely.

Nuclear power plant

A nuclear power plant (NPP) is a thermal power station in which the heat source is a nuclear reactor. As is typical of thermal power stations, heat is used to generate steam that drives a steam turbine connected to a generator that produces electricity. , the International Atomic Energy Agency reported there were 412 nuclear power reactors in operation in 31 countries around the world, and 57 nuclear power reactors under construction.

Electricity generation

Electricity generation is the process of generating electric power from sources of primary energy. For utilities in the electric power industry, it is the stage prior to its delivery (transmission, distribution, etc.) to end users or its storage (using, for example, the pumped-storage method). Usable electricity is not freely available in nature, so it must be "produced" (that is, transforming other forms of energy to electricity). Production is carried out in power stations (also called "power plants").

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