IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water engineering : Alternative to existing pipe-break valves in high-head power plants
Alternative to existing pipe-break valves in high-head power plants
Author : JAKOB SEIBL(1), ROMAN GABL(1), FLORIAN BIRKNER(1) & MARKUS AUFLEGER(1)
ABSTRACT
In case of a massive failure in the penstock of a high-head power plant, pipe-break valves uncouple the nearly horizontal
part from the endangered and also mainly strained section. In addition to the prime cost of such valves the operation can
be a non-negligible expense factor. In case of the modernisation of an existing power plant the alternative use of a locale
up-station (weir) can be an economic solution. The paper will present the concept in detail and summarise the first
results of the scale model test. Therefore, a box with different obstacles is investigated. Under fully submerged
conditions the local head loss is measured and in the transient case the change to free surface flow can be monitored.
This ongoing work also includes 1D- (WANDA) and 3D-numerical simulations (ANSYS-CFX) and focuses on the
transient behaviour
File Size : 2,259,094 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water engineering
Date Published : 19/08/2015
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