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Strength analysis of penstock bifurcations in hydropower plants

Adamkowski A., Kwapisz L.

Transactions of the Institute of Fluid-Flow Machinery

2004

nr 115

113-124

The strength analysis of penstock bifurcation in hydropower plants is discussed in the present paper. The analysis consists of determining the maximal internal pressure, (e.g. during turbine load rejection), stress analysis of the pipeline shell for assumed loading and assumed or determined material properties. The investigation results can be helpful when determining the proper rate of the flow cut-off and recommending the strengthening precautions to be applied in places of maximum stress concentration in order to prevent future penstock ruptures.