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Keywords: steam turbine
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Proceedings Papers

Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A013, June 13–17, 2022
Paper No: GT2022-82405
... Abstract The present paper is part of a two-part publication that aims to numerically investigate the occurrence of flow induced vibrations in a steam turbine last stage rotor at low load operations. Experimental and numerical investigations at low load operations are gaining interest...
Proceedings Papers

Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A012, June 13–17, 2022
Paper No: GT2022-82389
... Abstract The availability of steam turbines for prompt start-up, especially from hot or warm conditions, relies on the correct conditions for turbine cooldown, involving both the external casing and the shaft. While several works are available about the prediction and optimization of cooling...
Topics: Steam turbines
Proceedings Papers

Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A008, June 13–17, 2022
Paper No: GT2022-80950
... Abstract Flow measurements were made in a steam turbine cascade with a single blade of reduced height modeling a blade damage. In the experiments, the height of the single blade varied from full span (i.e., no tip clearance) up to totally removing the blade. The experimental investigation...
Proceedings Papers

Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A005, June 13–17, 2022
Paper No: GT2022-80368
... Abstract Due to the increasing need for operational flexibility nowadays, the low-pressure (LP) steam turbine might face widely variable operation conditions up to extreme low volume flow situations. Hereby, rotating instabilities (RIS), well known from compressor aerodynamics, can initiate non...
Proceedings Papers

Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A011, June 13–17, 2022
Paper No: GT2022-81921
... Abstract Steam turbines play an important role in global power generation since they are widely used, as thermal engines, in fossil-fueled, nuclear, and concentrated solar power plants. Therefore, recent trends in steam turbine design practices are closely related to the development...
Proceedings Papers

Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A014, June 13–17, 2022
Paper No: GT2022-82896
... Abstract In high-pressure single flow Steam Turbines, sealing of the radial gap between rotating and stationary parts in the front end of the turbine is a known design challenge. A traditional solution to control and reduce the leakages between the stationary and rotating parts in that area...
Proceedings Papers

Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A001, June 13–17, 2022
Paper No: GT2022-78258
... turbine modelling methodology to predict the radial and axial clearances within a 600MW candidate steam turbine during a full cold start procedure. This study formulates a method for sizing and modelling a representative turbine with limited OEM input through the implementation of the Nozzle Analogy...
Proceedings Papers

Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT24A003, June 13–17, 2022
Paper No: GT2022-79829
... Abstract Blade Vibration Monitoring techniques were employed at an operating power-generating steam turbine to measure and analyze blade vibrations and monitor turbine blade health. The blade row of interest was the last row of freestanding low-pressure turbine blades that had a known history...
Proceedings Papers

Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT27A016, June 13–17, 2022
Paper No: GT2022-82208
... the maximum forced response at part-speed conditions. intentional mistuning blade vibration flutter forced response steam turbine Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-82208 APPLICATION...
Proceedings Papers

Proc. ASME. GT2021, Volume 4: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage; Education; Electric Power, V004T09A002, June 7–11, 2021
Paper No: GT2021-58698
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-58698 DETECTION OF MACHINERY FAILURE SIGNS FROM BIG TIME-SERIES DATA OBTAINED BY FLOW SIMULATION OF INTERMEDIATE-PRESSURE STEAM TURBINES Kazuhiko Komatsu Hironori...
Proceedings Papers

Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T22A002, June 7–11, 2021
Paper No: GT2021-01893
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-01893 ASSESSMENT OF ROTOR STABILITY FOR STEAM TURBINE CONSIDERING LABYRINTH SEAL CHARACTERISTICS OF FLUID DESTABILIZATION FORCE AND VIBRATIONAL FREQUENCY EFFECT...
Proceedings Papers

Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T22A005, June 7–11, 2021
Paper No: GT2021-58632
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-58632 RECONSTRUCTION OF A STEAM TURBINE BLADE USING PIECEWISE BERNSTEIN POLYNOMIALS AND TRANSFINITE INTERPOLATION Luis David Pérez Sergio Ricardo Galván Francisco...
Proceedings Papers

Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T22A011, June 7–11, 2021
Paper No: GT2021-59252
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-59252 THERMAL CHARACTERIZATION OF A STEAM TURBINE CASING INCLUDING MEASURING OF ADIABATIC WALL TEMPERATURES USING PROPRIETARY SENSORS Bernhard Valerian Weigel...
Proceedings Papers

Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T22A017, June 7–11, 2021
Paper No: GT2021-59685
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-59685 TEST BENCH FOR CHARACTERIZATION AND DESIGN AGAINST STEAM TURBINE FOULING Gabriele Girezzi1,2, Damaso Checcacci1, Lorenzo Cosi1, Andrea Maggi3, Alessandro...
Proceedings Papers

Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T22A016, June 7–11, 2021
Paper No: GT2021-59645
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-59645 TWO PHASE FLOW CFD MODELING OF A STEAM TURBINE LOW PRESSURE SECTION: COMPARISON WITH DATA AND CORRELATIONS Nicola Maceli1, Lorenzo Arcangeli1, Andrea Arnone2...
Proceedings Papers

Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T22A019, June 7–11, 2021
Paper No: GT2021-60247
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-60247 RESEARCH ON FAULT DIAGNOSIS OF STEAM TURBINE ROTOR UNBALANCE AND PARALLEL MISALIGNMENT BASED ON NUMERICAL SIMULATION AND CONVOLUTIONAL NEURAL NETWORK Chongyu...
Proceedings Papers

Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T22A018, June 7–11, 2021
Paper No: GT2021-60049
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-60049 MULTI-PARAMETER PREDICTION FOR STEAM TURBINE BASED ON REAL-TIME DATA USING DEEP LEARNING APPROACHES Lei Sun1 Tianyuan Liu School of Energy and Power School...
Proceedings Papers

Proc. ASME. GT2020, Volume 2B: Turbomachinery, V02BT33A012, September 21–25, 2020
Paper No: GT2020-14674
...UNSTEADY STEAM TURBINE OPTIMIZATION USING HIGH FIDELITY CFD Vahid Iranidokht1, Ilias Papagiannis1, Anestis Kalfas2, Reza Abhari1, Shigeki Senoo3, Kazuhiro Momma4 1Swiss Federal Institute of Technology, Zurich, Switzerland 2Aristotle University of Thessaloniki, Thessaloniki, Greece 3Mitsubishi Heavy...
Proceedings Papers

Proc. ASME. GT2020, Volume 2B: Turbomachinery, V02BT34A019, September 21–25, 2020
Paper No: GT2020-16262
...Abstract Abstract In order to study the effect of initial surface roughness on water droplet erosion resistance of last stage blade substrate of steam turbine, eight 17-4PH samples were grounded and velvet polished by different mesh metallographic sandpaper to establish sample with different...
Proceedings Papers

Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T30A009, September 21–25, 2020
Paper No: GT2020-14468
...Abstract Abstract The last stage bladed disk of a steam turbine is analyzed with respect to both flutter susceptibility and limitation of forced response. Due to the lack of variable stator vanes unfavorable flow conditions may occur which can lead to flow separation in some circumstances...