| Issue |
MATEC Web Conf.
Volume 383, 2023
22nd Conference on Power System Engineering
|
|
|---|---|---|
| Article Number | 00019 | |
| Number of page(s) | 12 | |
| DOI | https://doi.org/10.1051/matecconf/202338300019 | |
| Published online | 20 October 2023 | |
Valve seat angle influence on losses in valves for steam turbines
1 Doosan Skoda Power, Tylova 1/57, 301 28 Pilsen, Czech Republic
2 University of West Bohemia, Power System Engineering Department, Univerzitni 8, 306 14 Pilsen, Czech Republic
3 Institute of Thermomechanics of the Czech Academy of Sciences, Dolejskova 1402/5, 182 00 Praha, Czech Republic
* Corresponding author: vaclav.slama@doosan.com
Losses in valve assemblies have a significant influence on turbines´ efficiency. Therefore, performing pressure loss analysis to enhance the valve design has always been one of the traditional issues. Valves can differ in many ways in terms of their design. This paper aims to show the influence of the valve seat angle, which is one of the characteristic design dimensions. In order to achieve this, different results from a wide range of measurements on two different models are used. Regarding the first model with a 60° valve seat angle, the measurement was performed in the Aerodynamic laboratory of the Institute of Thermomechanics of the Czech Academy of Sciences. The measurement of the second model with a 90° valve seat angle was performed in the Doosan Skoda Power experimental lab. Differences are described in the form of a total loss coefficient and a flow contraction coefficient. The results are complemented by flow fields from numerical simulations performed on both valve models using a package of ANSYS software tools.
© The Authors, published by EDP Sciences, 2023
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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