- Tytuł:
- The influence of stator-rotor interspace overlap of meridional contours on the efficiency of high-pressure steam turbine stages
- Autorzy:
-
Rusanov, Andrii
Rusanov, Roman - Powiązania:
- https://bibliotekanauki.pl/articles/1845496.pdf
- Data publikacji:
- 2021
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
high-pressure steam turbine
cavern
overlap
impulse type stage
reactive type stage - Opis:
- The results of a systematic study of the influence of meridional contours overlap in the stator-rotor axial interspace of the impulse and reactive type stages of a high-pressure steam turbine on the flow structure and gas-dynamic efficiency of the flow part are introduced. The studied flow parts of the impulse and reactive stages are typical for high-power high-pressure steam turbines. It is shown that the stages that have no overlaps and/or have a smooth shape of meridional contours have the best gasdynamic efficiency, and the most negative effect on the flow part is caused by the presence of caverns in the stator-rotor interspace. For cases where, due to technological limitations, it is impossible to avoid the presence of caverns and overlaps with a sharp (step-wise) change in the shape of the meridional contours, it is recommended to perform overlaps with positive size of overlap values near the rotor blades.
- Źródło:
-
Archives of Thermodynamics; 2021, 42, 1; 97-114
1231-0956
2083-6023 - Pojawia się w:
- Archives of Thermodynamics
- Dostawca treści:
- Biblioteka Nauki
Artykuł