... focusing on the application assessment of damper seals and swirl brakes in high-pressure steam turbines. This paper presents a comprehensive assessment and comparison on the rotordynamic characteristics of a staggered labyrinth seal (LABY), a fully partitioned pocket damper seal (FPDS), and a hole-pattern...

...Issei Fukamizu; Kazuhiko Komatsu; Masayuki Sato; Hiroaki Kobayashi The information of the degree of blade erosion is vital for the efficient operation of steam turbines. However, it is nearly impossible to directly measure the degree of blade erosion during operation. Moreover, collecting...

..., 2023. Turbo Expo 2023. e-mail:  info@ifas.tu-braunschweig.de 10 08 2023 11 09 2023 28 11 2023 radially adaptive seal steam turbine seal aerodynamics compressed air experiment seal-shaft wear-in Bundesministerium für Wirtschaft und Energie 10.13039/501100006360...

...Michal Hoznedl; Michal Kolovratník; Gukchol Jun In the paper, the behavior of wet steam flow is described in three different steam turbines. The first one is the 1100 MW turbine in the nuclear power plant with the pressurized water reactor. The second one is the 660 MW turbine in the fossil fuel...

... failures needs to be developed. To detect the signs of machinery failures, the analysis of time-series data is required. However, data for various blade conditions must be collected from actual operating steam turbines. Further, obtaining abnormal or failure data is difficult. Thus, this paper proposes...

.... Editor: David Wisler. 28 03 2014 07 05 2014 A multi-axial continuum damage mechanics (CDM) model was proposed to calculate the multi-axial creep–fatigue damage of a high temperature component. A specific outer cylinder of a 1000 MW supercritical steam turbine was used in this study...

...Yong-Jian Sun; Li-Sheng Hu A new nonlinear model is proposed to assess the low cycle fatigue life of a 300 MW steam turbine rotor. Manson-Coffin equation and cyclic stress-strain relationship are employed to eliminate the unmeasured parameters, so all the parameters in model are measurable. Through...

... for protecting steam turbine blades from solid particle erosion due to higher erosion resistance. However, blades cannot be protected effectively when coating is thinner than a critical value θ crit . Based on our results, it is recommended that the protective coating for the steam turbine blade should...