| Issue |
MATEC Web Conf.
Volume 367, 2022
21st Conference on Power System Engineering
|
|
|---|---|---|
| Article Number | 00010 | |
| Number of page(s) | 7 | |
| DOI | https://doi.org/10.1051/matecconf/202236700010 | |
| Published online | 14 October 2022 | |
Steam turbine flow path drainage system under different operating conditions
Doosan Škoda Power, 301 28 Tylova 1/57, Plzeň, Czech Republic
* Corresponding author: michal.hoznedl@doosan.com
One of the important elements of anti-erosion protection of the steam turbine last blades is the use of hollow stator blades. There are grooves on the blade surface that lead the steam mixture inside the blades. This mixture is blown to the diffuser area. However, the drain principle fails for low outputs of the turbine, during the so-called ventilation regimes. In the part of blade section the steam flow is reversed and the flow part drain stops working. It was confirmed using experiments of steam turbine carried out in a wide range of power outputs.
© The Authors, published by EDP Sciences, 2022
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