https://doi.org/10.1051/epjconf/201611402108
Influence of balancing holes and disc sealing in turbine stages on thermodynamic efficiency and rotor forces
R&D Specialist Sciences, Thermodynamics Department, Doosan Škoda Power s.r.o., Tylova 1/57, 301 28 Plzeň, Czech Republic
a Corresponding author: vaclav.slama@doosan.com
Published online: 28 March 2016
This paper deals with CFD analysis of a particular turbine impulse stage including the surrounding parts such as diaphragm seals, shroud seals and a disc axial gap, where balancing holes and a disc sealing is designed. The aim is to investigate effects on efficiency and axial forces by evaluation of a pressure distribution on the rotor disc and respective mass flow balances. As a result of this, the possible methodology of design optimization could be found. The other part of the project is to find the way for a more exact preliminary computation which is essential for increasing efficiency and the reduction of the axial forces.
© Owned by the authors, published by EDP Sciences, 2016
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.
