Shaft Labyrinth Seal Clearance Effect in One and Half Steam Turbine Stage with Various Reactions
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F19%3AN0000060" target="_blank" >RIV/00010669:_____/19:N0000060 - isvavai.cz</a>
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Shaft Labyrinth Seal Clearance Effect in One and Half Steam Turbine Stage with Various Reactions
Popis výsledku v původním jazyce
This contribution deals with an experimental study of an influence of a purge flow caused by a shaft labyrinth seal in combination with various reaction of a steam turbine stage. Effects of degree of reaction on shrouded rotor sealing flow are also discussed. The experimental work was performed in VZLU air test turbine and it belongs to a long term cooperation with Doosan Škoda Power (DSPW). The configuration of the VZLU air test turbine simulated real drum-stage geometry of DSPW. The stage was consisted of the first stator equipped with labyrinth sealing, shrouded rotor and the second stator, equipped with the labyrinth sealing as well. The first stator labyrinth sealing configuration was variable to simulate small, commonly used and extremely large clearances. There were three stage reactions tested during the investigation. The change of the reaction was reached by three different rotor geometries testing; both stators were kept the same in all cases. The influence of the clearance in the labyrinth was studied by overall measurement of the stage characteristics and also by detailed flow field measurement at the rotor and second stator outlet. Four-hole wedge pressure probes were used for the detailed time averaged measurement as well as a fast response pressure probe for an unsteady measurement.
Název v anglickém jazyce
Shaft Labyrinth Seal Clearance Effect in One and Half Steam Turbine Stage with Various Reactions
Popis výsledku anglicky
This contribution deals with an experimental study of an influence of a purge flow caused by a shaft labyrinth seal in combination with various reaction of a steam turbine stage. Effects of degree of reaction on shrouded rotor sealing flow are also discussed. The experimental work was performed in VZLU air test turbine and it belongs to a long term cooperation with Doosan Škoda Power (DSPW). The configuration of the VZLU air test turbine simulated real drum-stage geometry of DSPW. The stage was consisted of the first stator equipped with labyrinth sealing, shrouded rotor and the second stator, equipped with the labyrinth sealing as well. The first stator labyrinth sealing configuration was variable to simulate small, commonly used and extremely large clearances. There were three stage reactions tested during the investigation. The change of the reaction was reached by three different rotor geometries testing; both stators were kept the same in all cases. The influence of the clearance in the labyrinth was studied by overall measurement of the stage characteristics and also by detailed flow field measurement at the rotor and second stator outlet. Four-hole wedge pressure probes were used for the detailed time averaged measurement as well as a fast response pressure probe for an unsteady measurement.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
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OECD FORD obor
20303 - Thermodynamics
Návaznosti výsledku
Projekt
<a href="/cs/project/TH02020086" target="_blank" >TH02020086: Vliv interakce proudění z ucpávek na efektivitu práce stupňů parních turbín.</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
18TH CONFERENCE OF POWER SYSTEM ENGINEERING, THERMODYNAMICS AND FLUID MECHANICS
ISBN
9780735419360
ISSN
0094243X
e-ISSN
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Počet stran výsledku
11
Strana od-do
nestránkováno
Název nakladatele
neuveden
Místo vydání
neuveden
Místo konání akce
Pilsen
Datum konání akce
11. 6. 2019
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
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