| Issue |
E3S Web Conf.
Volume 323, 2021
V International Scientific and Technical Conference Modern Power Systems and Units (MPSU 2021)
|
|
|---|---|---|
| Article Number | 00034 | |
| Number of page(s) | 5 | |
| DOI | https://doi.org/10.1051/e3sconf/202132300034 | |
| Published online | 10 November 2021 | |
Revalorisation of the Szewalski’s concept of the law of varying the last-stage blade retraction in a gas-steam turbine
1 Gdańsk University of Technology, Faculty of Mechanical Engineering and Ship Technology, Institute of Energy, Narutowicza 11/12, 80-233 Gdańsk
2 Institute of Fluid-Flow Machinery Polish Academy of Sciences, Energy Conversion Department, Fiszera 14, 80-231 Gdańsk, Poland
* Corresponding author: e-mail: pawziolk@pg.edu.pl
The article presents the implementations of the free vortex law to the blade of the last stage of a gas-steam turbine. First, a thermodynamic analysis was carried out, determining the parameters at the inlet, then the number of stages of the high and low-pressure part of the turbine was constructed, together with the kinematics and velocity vectors for subsequent stages of the axial turbine. The last step of article was to take into account the law of variation of the peripheral component of the velocity of the medium working with the radius of the turbine in a discrete way and to make a 3D drawing of the resulting geometry. When creating the spatial model, the atlas of profiles of reaction turbine stages was used.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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