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Published in: WASSERWIRTSCHAFT 1/2019

01-09-2019 | Praxis

On-board measurements at a 100 MW high-head Francis turbine

Authors: Dipl. Ing. Maximilian Titzschkau, Dr. Eng. Vlad Hasmatuchi, Dr. Eng. Jean Decaix, Prof. Dr. Eng. Cécile Münch-Alligné

Published in: WASSERWIRTSCHAFT | Special Issue 1/2019

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The Francis turbine runners of the four ternary groups of Grimsel 2 power plant in Switzerland showed fatigue cracks at the runner blades much earlier than expected. To find the source of these cracks, strain gauges and accelerometers were used to get information about the harmful stresses on the runner during operation. It is observed that the speed no-load operation during the start-up and the shutdown processes of the turbine impose large stresses on the runner blades. …
Metadata
Title
On-board measurements at a 100 MW high-head Francis turbine
Authors
Dipl. Ing. Maximilian Titzschkau
Dr. Eng. Vlad Hasmatuchi
Dr. Eng. Jean Decaix
Prof. Dr. Eng. Cécile Münch-Alligné
Publication date
01-09-2019
Publisher
Springer Fachmedien Wiesbaden
Published in
WASSERWIRTSCHAFT / Issue Special Issue 1/2019
Print ISSN: 0043-0978
Electronic ISSN: 2192-8762
DOI
https://doi.org/10.1007/s35147-019-0236-y