Assessment of the Embedment of Francis Turbine for Pumped Hydraulic Energy Storage
Georgi Todorov,
Ivan Kralov,
Konstantin Kamberov
et al.
Abstract:In the paper analyzes of Francis turbine failures for a powerful Pumped Hydraulic Energy Storage (PHES) are conducted. The structure is part of the PHES Chaira, Bulgaria (HA4 - Hydro-Aggregate 4). The aim is assessment of the structure-to-concrete embedment for possible cause of damages and destructions of the HA4 Francis spiral casing units. The embedment methods applied in the practice for decades are discussed and compared to that used for HA4. An innovative virtual prototype is built based on the finite el… Show more
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