Author(s): Niki Molana; Maxime Coulaud; Yvan Maciel; Sebastien Houde

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Keywords: No Keywords

Abstract: This study presents the procedures used to implement a homologous start-up sequence for a reduced-scale Francis turbine on the Heki closed-loop test stand at Universite Laval. The objective is to replicate the start-up conditions of a 140 MW prototype turbine to investigate fluid-structure interactions at the model scale. Start-up key parameters such as the guide vanes opening and rotating inertia were determined through dimensional analysis and validated by one-dimensional SIMSEN simulations before experimental implementation. The homologous start-up was successfully implemented on the closed-loop system, and the resulting performance parameters were compared with the available prototype measurements to validate the methodology.

DOI: https://doi.org/10.1088/1755-1315/1561/1/012041

Year: 2025