Publication

Fine Sediment release from a reservoir by controlled hydrodynamic mixing

Anton Schleiss, Giovanni De Cesare, Jolanda Maria Isabella Jenzer Althaus
2011
Conference Papers

Abstract

Reservoir sedimentation is worldwide a problem and requires a sustainable solution. The idea of maintaining sediment in suspension by a jet induced artificial turbulence and releasing it through the water intake was tested in laboratory experiments. Therefore, two jet configurations and the influence of their geometrical parameters and the jet discharge on the sediment release were investigated: (i) a circular jet configuration with four jets arranged in a circle on a horizontal plane and (ii) a linear jet configuration with four jets arranged on a line parallel to the front wall. Turbidity measurements accompanied by flow velocity measurements give information about the efficiency and its reasons. The circular jet arrangement was more efficient than the linear arrangement and reached with the highest tested discharge (ΣQj = 4050 l/h) an evacuated sediment ratio of 0.73. An optimal parameter set was identified having a release efficiency of between 1.5 and 2 compared to no jets, depending on time and discharge. The optimal jet configuration indicates best installation and discharge practice of the jets when fighting against reservoir sedimentation. A pilot prototype set-up underlines the experimentally found promising results

Official source

https://infoscience.epfl.ch/entities/publication/72e8789e-1e92-4de9-b304-f1cf15be45f0

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Anton Schleiss, Giovanni De Cesare, Jolanda Maria Isabella Jenzer Althaus
2011
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/72e8789e-1e92-4de9-b304-f1cf15be45f0

About this result

Related concepts (32)

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A jet engine is a type of reaction engine, discharging a fast-moving jet of heated gas (usually air) that generates thrust by jet propulsion. While this broad definition may include rocket, water jet, and hybrid propulsion, the term typically refers to an internal combustion air-breathing jet engine such as a turbojet, turbofan, ramjet, or pulse jet. In general, jet engines are internal combustion engines.

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Fine Sediment release from a reservoir by controlled hydrodynamic mixing

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