Flow and Vibration in the Small Steam Turbine Last Stage

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49193864%3A_____%2F22%3AN0000004" target="_blank" >RIV/49193864:_____/22:N0000004 - isvavai.cz</a>
Result on the web
<a href="https://www.matec-conferences.org/articles/matecconf/pdf/2022/16/matecconf_aenmmte2022_02001.pdf" target="_blank" >https://www.matec-conferences.org/articles/matecconf/pdf/2022/16/matecconf_aenmmte2022_02001.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/matecconf/202236902001" target="_blank" >10.1051/matecconf/202236902001</a>

Result language
angličtina
Original language name
Flow and Vibration in the Small Steam Turbine Last Stage
Original language description
The paper deals with evaluation of experimental data obtained from the real-size 30 MW output Waste to Energy steam turbine. For many turbine regimes pressures in the last stage area were obtained. At the same time amplitudes of blade tips vibrations were measured of last rotor blades using the blade tip timing system and axial velocity of the steam at the last stage outlet. The obtained data are mutually correlated and relations are analysed between increased vibration values and pressure ratios at the last stage. Increased tip vibrations occur mainly in the area when the pressure ratio over the last blade tip and root is higher than one. In this case there is no expansion, but compression in the last stage of the turbine. The presented results contribute to understanding of processes in the last stage of the steam turbine, mainly for those regimes of turbine operation when its output is lower than 20 % of the nominal output, e.g. during the island regime.
Czech name
—
Czech description
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Project
<a href="/en/project/FW03010515" target="_blank" >FW03010515: Ulltraflexible operation regimes of steam turbines</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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