Separation of water film from last stage guide blades of 1000 MW steam turbine
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49193864%3A_____%2F19%3AN0000005" target="_blank" >RIV/49193864:_____/19:N0000005 - isvavai.cz</a>
Výsledek na webu
<a href="https://asmedigitalcollection.asme.org/GT/proceedings-abstract/GT2019/58714/V008T29A006/1067205" target="_blank" >https://asmedigitalcollection.asme.org/GT/proceedings-abstract/GT2019/58714/V008T29A006/1067205</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1115/GT2019-90221" target="_blank" >10.1115/GT2019-90221</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Separation of water film from last stage guide blades of 1000 MW steam turbine
Popis výsledku v původním jazyce
The paper deals with experimental research of water and steam flow through the grooves in hollow stator blades of the steam turbine last stages with the support of CFD calculations. Also the amount of water sucked by the circumferential groove in the upper limiting wall between the last stage rotor and stator blade was experimentally measured. Measuring took place on a steam turbine with nominal output 1000 MW. With gradual increase of the turbine output it was possible to measure parameters of hollow blades suction for outputs 205, 460, 730, 870 and also 1006 MW. The results of experimental measurements provide very important information about the whole suction tract behaviour and its ability to remove liquid water films from the stator blades surface. As very good qualities of the suction tract were confirmed by the measurement, it could be stated that hollow stator blades combined with the circumferential groove on the upper limiting wall is still a suitable technical solution for lowering erosion loading of the last stages. When using a properly dimensioned and correctly working suction system, erosion loading of LSB leading edges on the tip can be lowered by almost a half.
Název v anglickém jazyce
Separation of water film from last stage guide blades of 1000 MW steam turbine
Popis výsledku anglicky
The paper deals with experimental research of water and steam flow through the grooves in hollow stator blades of the steam turbine last stages with the support of CFD calculations. Also the amount of water sucked by the circumferential groove in the upper limiting wall between the last stage rotor and stator blade was experimentally measured. Measuring took place on a steam turbine with nominal output 1000 MW. With gradual increase of the turbine output it was possible to measure parameters of hollow blades suction for outputs 205, 460, 730, 870 and also 1006 MW. The results of experimental measurements provide very important information about the whole suction tract behaviour and its ability to remove liquid water films from the stator blades surface. As very good qualities of the suction tract were confirmed by the measurement, it could be stated that hollow stator blades combined with the circumferential groove on the upper limiting wall is still a suitable technical solution for lowering erosion loading of the last stages. When using a properly dimensioned and correctly working suction system, erosion loading of LSB leading edges on the tip can be lowered by almost a half.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
—
OECD FORD obor
20302 - Applied mechanics
Návaznosti výsledku
Projekt
<a href="/cs/project/TK01020029" target="_blank" >TK01020029: Zvyšování účinnosti turbínových stupňů pracujících v mokré páře</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2019
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition
ISBN
978-0-7918-5871-4
ISSN
—
e-ISSN
—
Počet stran výsledku
11
Strana od-do
GT2019-90221
Název nakladatele
ASME Turbo Expo
Místo vydání
Phoenix, Arizona, USA
Místo konání akce
Phoenix, Arizona, USA
Datum konání akce
1. 1. 2019
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
—