Method for prediction of cavitation erosion performance in hydro-turbines based on the two-parameter phenomenological model

  • Bolesław Grzegorz Gireń
  • Marzena Noińska-Macińska
Słowa kluczowe: cavitation erosion, materials performance, performance evaluation, random process modelling, wear

Abstrakt

Two-parameter phenomenological model for quantification of the cavitation damage process in its initial — incubation stage inspired by Förster energy migration theory is presented in the paper. The model built was supplemented with functional relationships between calculation parameters and strength parameters of the materials derived for chosen cavitation loading conditions. Experiments at the rotating disk set-up have been carried out in order to obtain necessary experimental data. The values of calculation parameters have been determined by adjusting the theoretical erosion curve to experimental one. Preliminary experimental verification of the model soundness consisted in comparing theoretical to experimental results obtained from both the ICET program and the experimental investigations of the cavitation erosion at Banki-Michel turbine blades. Reliability as well as the sources of inaccuracy and uncertainties were also discussed. The far-reaching aim of the work is to create the calculation tool for prediction of cavitation erosion performance in hydro-turbines during their operating cycle.

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Opublikowane
2019-04-24
Jak cytować
Gireń, B., & Noińska-Macińska, M. (2019). Method for prediction of cavitation erosion performance in hydro-turbines based on the two-parameter phenomenological model. Eco-Energetics: Technologies, Environment, Law and Economy, 1, 21-32. https://doi.org/10.24426/eco-energetics.v1i0.98
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