Flow and Vibration in the Small Steam Turbine Last Stage

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Flow and Vibration in the Small Steam Turbine Last Stage

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Flow and Vibration in the Small Steam Turbine Last Stage

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/FW03010515" target="_blank" >FW03010515: Ultraflexibilní provozní režimy parních turbín</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

MATEC Web of Conferences 369, 02001 (2022)

ISBN

—

ISSN

2261-236X

e-ISSN

2261-236X

Počet stran výsledku

10

Strana od-do

Article Number 02001

Název nakladatele

MATEC Web of Conferences

Místo vydání

neuveden

Místo konání akce

Plzeň, Czech Republic

Datum konání akce

1. 1. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—