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Application of the balancing holes on the turbine stage discs with higher root reaction

By Mrózek Lukáš, Tajč Ladislav, Hoznedl Michal and Miczán Martin


The influence of the flow area of balancing holes in the discs of a steam turbine on its thermodynamic efficiency is examined for turbine stages operating in the increased root reaction regime. The interstage seal flooding with steam is modelled. The impact is given on stage reaction changes, on mass flow adjustments, and on overpressure operating in the rotor disc

Topics: Physics, QC1-999
Publisher: EDP Sciences
Year: 2016
DOI identifier: 10.1051/epjconf/201611402080
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