EXPERIMENTAL AND NUMERICAL ASSESSMENT OF A LAST STAGE ST BLADE DAMPING AT LOW LOAD OPERATION

Authors

  • Andrea Bessone
  • Luigi Carassale
  • Roberto Guida
  • Zdeněk Kubín
  • Antonio Alfio Lo Balbo
  • Michela Marrè Brunenghi
  • Lorenzo Pinelli

DOI:

https://doi.org/10.14311/APP.2018.20.0016

Keywords:

low pressure steam turbine blade, flutter, low load operation

Abstract

As LP steam turbines are requested to work at strong part-loads, LSB stalled and unstalled flutter may occur. Testing on a downscaled steam turbine in T10MW test plant have been carried out to measure LSB aggregated damping at low load. Also numerical analysis to predict aerodynamic damping have been performed and results have been compared to experimental data, allowing software tool validation at low load.

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Published

2018-12-31

How to Cite

Bessone, A., Carassale, L., Guida, R., Kubín, Z., Lo Balbo, A. A., Brunenghi, M. M., & Pinelli, L. (2018). EXPERIMENTAL AND NUMERICAL ASSESSMENT OF A LAST STAGE ST BLADE DAMPING AT LOW LOAD OPERATION. Acta Polytechnica CTU Proceedings, 20, 16–28. https://doi.org/10.14311/APP.2018.20.0016

Issue

Vol. 20 (2018): TURBOMACHINES 2018

Section

Articles