Experimental and Numerical Assessment of a Downscaled Steam Turbine Last Stage Blade Damping at Low Load Operation

TitleExperimental and Numerical Assessment of a Downscaled Steam Turbine Last Stage Blade Damping at Low Load Operation
Publication TypeJournal Article
Year of Publication2018
AuthorsBessone A, Carassale L, Guida R, Kubin Z, Lo Balbo A A, Marrè Bruneghi M, Pinelli L
JournalActa Polytechnica CTU Proceedings
VolumeVol 20 Turbomachines 2018
Pagination16-28
ISBN Number978-80-01-06521-1
ISSN Number2336-5382
KeywordsFlutter, low load operation, low pressure steam turbine blade
Abstract

As LP steam turbines are asked to work at strong part-loads, LSB stalled and unstalled flutter may occur. Testing on a downscaled steam turbine in T10 MW test plant have been carried out to measure LSB aggregated damping at low load. Also numerical analysis to predict aerodynamic damping have been done, and results have been compared to experimental data allowing software tool validation at low load.

URLhttps://ojs.cvut.cz/ojs/index.php/APP/article/view/5359
DOI10.14311/APP.2018.20.0016
Refereed DesignationRefereed