Topics: Gas turbines , Engines , Energy generation , Compressors , Design , Emergency power , Gas industry , Industrial gases , North Sea , Petroleum industry

Experimental Investigation of an Inverted Brayton Cycle for Exhaust Gas Energy Recovery

Ian Kennedy, Zhihang Chen, Bob Ceen, Simon Jones, Colin D. Copeland

GT 2018; V008T26A003doi:https://doi.org/10.1115/GT2018-75386

Abstract

View Articletitled, Experimental Investigation of an Inverted Brayton Cycle for Exhaust Gas Energy Recovery

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Topics: Brayton cycle , Energy recovery , Exhaust systems , Temperature , Gases , Pressure drop , Turbines , Additive manufacturing , Combustion , Compressors

Design of a Variable Geometry Axial-Inflow Turbine Turbocharger Equipped With a Diffuser-Collector System

Apostolos Pesyridis, Alessandro Cappiello, Raffaele Tuccillo

GT 2018; V008T26A004doi:https://doi.org/10.1115/GT2018-75403

Abstract

View Articletitled, Design of a Variable Geometry Axial-Inflow Turbine Turbocharger Equipped With a Diffuser-Collector System

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Topics: Design , Diffusers , Geometry , Inflow , Turbines , Turbochargers , Engines , Radial flow , Compressors , Flow (Dynamics)

On the Choice of Turbine Type for a Twin-Turbine Heavy-Duty Turbocharger Concept

Nicholas Anton, Magnus Genrup, Carl Fredriksson, Per-Inge Larsson, Anders Christiansen-Erlandsson

GT 2018; V008T26A005doi:https://doi.org/10.1115/GT2018-75452

Abstract

View Articletitled, On the Choice of Turbine Type for a Twin-Turbine Heavy-Duty Turbocharger Concept

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Topics: Turbines , Turbochargers , Engines , Exhaust systems , Engineering simulation , Exhaust manifolds , Simulation , Blades , Design , Flow (Dynamics)

Development of a Meanline Model for Preliminary Design of Recirculating Casing Treatment in Turbocharger Compressors

Carlos Felipe F. Favaretto, Mark R. Anderson, Shuo Li, Leon Hu

GT 2018; V008T26A006doi:https://doi.org/10.1115/GT2018-75717

Abstract

View Articletitled, Development of a Meanline Model for Preliminary Design of Recirculating Casing Treatment in Turbocharger Compressors

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Topics: Compressors , Design , Turbochargers , Flow (Dynamics) , Cavities , Computational fluid dynamics , Impellers , Surges

Performance of the Automotive Turbocharger Compressor With Various CO₂-Air Mixtures

Tomasz Duda, Colin Copeland

GT 2018; V008T26A007doi:https://doi.org/10.1115/GT2018-75747

Abstract

View Articletitled, Performance of the Automotive Turbocharger Compressor With Various CO2-Air Mixtures

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Topics: Carbon dioxide , Compressors , Turbochargers , Pressure , Flow (Dynamics) , Closed-cycle gas turbines , Computational fluid dynamics , Engineering simulation , Engines , Exhaust gas recirculation

Numerical Investigation of Spray Development in a Micro Gas Turbine LPP Combustor With Airblast Atomizer

Gianluca Annunziata, Maria Cristina Cameretti, Roberta De Robbio, Raffaele Tuccillo

GT 2018; V008T26A008doi:https://doi.org/10.1115/GT2018-75789

Abstract

View Articletitled, Numerical Investigation of Spray Development in a Micro Gas Turbine LPP Combustor With Airblast Atomizer

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Topics: Combustion chambers , Micro gas turbines , Sprays , Fuels , Combustion , Flow (Dynamics) , Air flow , Biofuel , Boundary-value problems , Computational fluid dynamics

NO_x Reduction in a Swirl Combustor Firing Ammonia for a Micro Gas Turbine

Norihiko Iki, Osamu Kurata, Takayuki Matsunuma, Takahiro Inoue, Taku Tsujimura, Hirohide Furutani, Hideaki Kobayashi, Akihiro Hayakawa, Ekenechukwu Okafor

GT 2018; V008T26A009doi:https://doi.org/10.1115/GT2018-75993

Abstract

View Articletitled, NOx Reduction in a Swirl Combustor Firing Ammonia for a Micro Gas Turbine

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Topics: Combustion chambers , Firing , Micro gas turbines , Nitrogen oxides , Combustion , Flames , Methane , Engineering prototypes , Fuels , Emissions

On the Stability Influence of Trimmed Vaneless Diffusers in Turbocharger Applications

Valeriu Dragan, Mihai Mihaescu

GT 2018; V008T26A010doi:https://doi.org/10.1115/GT2018-76165

Abstract

View Articletitled, On the Stability Influence of Trimmed Vaneless Diffusers in Turbocharger Applications

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Topics: Stability , Turbochargers , Vaneless diffusers , Diffusers , Flow (Dynamics) , Pressure , Compressors , Blades , Emissions , Entropy

A Study on the Influence of Intake Geometry on the Turbocharger Compressor Performance

Dhinagaran Ramachandran, Sreenivasa Somashekarappa, Balamurugan Mayandi, Ranganathan Reddy Shanmugam, Saravanan Boolingam, Gurusankar Ashok

GT 2018; V008T26A011doi:https://doi.org/10.1115/GT2018-76321

Abstract

View Articletitled, A Study on the Influence of Intake Geometry on the Turbocharger Compressor Performance

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Topics: Compressors , Geometry , Turbochargers , Computational fluid dynamics , Engineering simulation , Impellers , Pressure , Simulation , Air flow , Ducts

Data-Driven Pre-Design Tool for Small Scale Centrifugal Compressors in Refrigeration

Violette Mounier, Cyril Picard, Jürg Schiffmann

GT 2018; V008T26A012doi:https://doi.org/10.1115/GT2018-76349

Abstract

View Articletitled, Data-Driven Pre-Design Tool for Small Scale Centrifugal Compressors in Refrigeration

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Topics: Compressors , Design , Refrigeration , Blades , Geometry , Air conditioners , Bearings , Clearances (Engineering) , Exhaust systems , Fluids

Design of an Air-Cooled Radial Turbine: Part 1 — Computational Modelling

Yang Zhang, Tomasz Duda, James A. Scobie, Carl M. Sangan, Colin D. Copeland, Alex Redwood

GT 2018; V008T26A013doi:https://doi.org/10.1115/GT2018-76378

Abstract

View Articletitled, Design of an Air-Cooled Radial Turbine: Part 1 — Computational Modelling

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Topics: Design , Modeling , Turbine components , Turbines , Coolants , Rotors , Temperature , Blades , Computer simulation , Cooling

Design of an Air-Cooled Radial Turbine: Part 2 — Experimental Measurements of Heat Transfer

Yang Zhang, Tomasz Duda, James A. Scobie, Carl M. Sangan, Colin D. Copeland, Alex Redwood

GT 2018; V008T26A014doi:https://doi.org/10.1115/GT2018-76384

Abstract

View Articletitled, Design of an Air-Cooled Radial Turbine: Part 2 — Experimental Measurements of Heat Transfer

PDF

Topics: Additive manufacturing , Blades , Compressors , Coolants , Cooling , Cycles , Design , Engineering prototypes , Heat transfer , High temperature

Analysis of Unsteady Energy Fluxes in a Turbocharger by Using a Holistic Model Extrapolating Standard Lookup Tables in Full Engine Operating Map

José Ramón Serrano, Luis Miguel García-Cuevas, Lukas Benjamin Inhestern, Stephane Guilain, Hadi Tartoussi

GT 2018; V008T26A015doi:https://doi.org/10.1115/GT2018-76470

Abstract

View Articletitled, Analysis of Unsteady Energy Fluxes in a Turbocharger by Using a Holistic Model Extrapolating Standard Lookup Tables in Full Engine Operating Map

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Topics: Engines , Flux (Metallurgy) , Turbochargers , Heat , Heat transfer , Compressors , Design , Diesel engines , Entropy , Exergy

Method for Non-Dimensional Tip Leakage Flow Characterization in Radial Turbines

José Ramón Serrano, Roberto Navarro, Luis Miguel García-Cuevas, Lukas Benjamin Inhestern

GT 2018; V008T26A016doi:https://doi.org/10.1115/GT2018-76490

Abstract

View Articletitled, Method for Non-Dimensional Tip Leakage Flow Characterization in Radial Turbines

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Topics: Leakage flows , Turbines , Flow (Dynamics) , Momentum , Leakage , Fluids , Blades , Computational fluid dynamics , Friction , Pressure

Double Scroll Turbine for Automotive Applications: Engine Operating Point Versus Dynamic Blade Stress From Forced Response Vibration

David Hemberger, Roberto De Santis, Dietmar Filsinger

GT 2018; V008T26A017doi:https://doi.org/10.1115/GT2018-76590

Abstract

View Articletitled, Double Scroll Turbine for Automotive Applications: Engine Operating Point Versus Dynamic Blade Stress From Forced Response Vibration

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Topics: Automotive industry , Blades , Engines , Stress , Turbines , Vibration , Excitation , Exhaust systems , Flow (Dynamics) , Combustion

Numerical Study of a Micro Gas Turbine Integrated With a Supercritical CO₂ Brayton Cycle Turbine

Fabrizio Reale, Vincenzo Iannotta, Raffaele Tuccillo

GT 2018; V008T26A018doi:https://doi.org/10.1115/GT2018-76656

Abstract

View Articletitled, Numerical Study of a Micro Gas Turbine Integrated With a Supercritical CO2 Brayton Cycle Turbine

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Topics: Micro gas turbines , Supercritical carbon dioxide closed-cycle gas turbines , Organic Rankine cycle , Cycles , Energy / power systems , Brayton cycle , Carbon dioxide , Distributed power generation , Emissions , Energy storage

A Biogas Fuelled Micro Gas Turbine Using Dual-Fuel Approach

Raffaela Calabria, Fabio Chiariello, Patrizio Massoli, Fabrizio Reale

GT 2018; V008T26A019doi:https://doi.org/10.1115/GT2018-76667

Abstract

View Articletitled, A Biogas Fuelled Micro Gas Turbine Using Dual-Fuel Approach

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Topics: Biogas , Fuels , Micro gas turbines , Carbon dioxide , Combustion , Combustion chambers , Compression , Energy resources , Flames , Sustainability

An Investigation on the Loss Generation Mechanisms Inside Different Centrifugal Compressor Volutes for Turbochargers

Andrea Tanganelli, Francesco Balduzzi, Alessandro Bianchini, Giovanni Ferrara, Francesco Cencherle, Michele De Luca, Luca Marmorini

GT 2018; V008T26A020doi:https://doi.org/10.1115/GT2018-76694

Abstract

View Articletitled, An Investigation on the Loss Generation Mechanisms Inside Different Centrifugal Compressor Volutes for Turbochargers

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Topics: Compressors , Turbochargers , Flow (Dynamics) , Design , Diffusers , Entropy , Pressure , Boundary-value problems , Computer simulation , Fluids

Influence of Upstream Geometry on Pulsatile Turbocharger Turbine Performance

Shyang Maw Lim, Anders Dahlkild, Mihai Mihaescu

GT 2018; V008T26A021doi:https://doi.org/10.1115/GT2018-76706

Abstract

View Articletitled, Influence of Upstream Geometry on Pulsatile Turbocharger Turbine Performance

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Topics: Geometry , Turbines , Turbochargers , Heat transfer , Exhaust manifolds , Eddies (Fluid dynamics) , Exergy , Flow (Dynamics) , Piston engines , Pulsatile flow

An Integrated Design Approach for Turbocharger Turbines Based on the Performance Optimization in Transitory Conditions

Matteo Checcucci, Michele Becciani, Juri Bellucci, Alessandro Bianchini, Giovanni Ferrara, Andrea Arnone, Francesco Cencherle, Michele De Luca, Luca Marmorini, Stephane Montesino, Nicola Pini

GT 2018; V008T26A022doi:https://doi.org/10.1115/GT2018-76719

Abstract

View Articletitled, An Integrated Design Approach for Turbocharger Turbines Based on the Performance Optimization in Transitory Conditions

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Topics: Design , Optimization , Turbines , Turbochargers , Engines , Flow (Dynamics) , Inertia (Mechanics) , Sports , Turbocharged engines , Compression

Development of a New Low-Cost Tandem VGT Concept for Turbocharger Applications

Rodrigo R. Erdmenger, Katya Menter, Rogier Giepman, Cathal Clancy, Aneesh Vadvadgi, Tom Lavertu, Thomas Leonard, Stephen Spence

GT 2018; V008T26A023doi:https://doi.org/10.1115/GT2018-77048

Abstract

View Articletitled, Development of a New Low-Cost Tandem VGT Concept for Turbocharger Applications

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Topics: Turbochargers , Turbines , Geometry , Nozzles , Reliability , Transients (Dynamics) , Additive manufacturing , Computational fluid dynamics , Design , Diesel

Steam Turbines

Influence of Wet Steam on the Five-Stage Steam Turbine Efficiency

Michal Hoznedl, Michal Kolovratník, Ladislav Tajč, Andreas P. Weiß, Lukáš Mrózek

GT 2018; V008T29A001doi:https://doi.org/10.1115/GT2018-75049

Abstract

View Articletitled, Influence of Wet Steam on the Five-Stage Steam Turbine Efficiency

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Topics: Steam , Steam turbines , Probes , Blades , Brakes , Drops , Enthalpy , Flow (Dynamics) , Superheating , Turbines

Digitalization: Laser Metal Deposition — The Future of Spare Parts and Repairs for Industrial Steam Turbines

Norman Wittig

GT 2018; V008T29A002doi:https://doi.org/10.1115/GT2018-75066

Abstract

View Articletitled, Digitalization: Laser Metal Deposition — The Future of Spare Parts and Repairs for Industrial Steam Turbines

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Topics: Lasers , Maintenance , Metals , Steam turbines , Robots , Coatings , Laser welding , Manufacturing , Blades , Chain

A Test Rig Concept to Study Fluid Structure Interactions in a Steam Turbine Valve

Stefan Wallat, Clemens B. Domnick, Christian Musch, Dieter Brillert

GT 2018; V008T29A003doi:https://doi.org/10.1115/GT2018-75094

Abstract

View Articletitled, A Test Rig Concept to Study Fluid Structure Interactions in a Steam Turbine Valve

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Topics: Fluid structure interaction , Steam turbines , Valves , Flow (Dynamics) , Design , Vibration , Computer simulation , Damage , Dimensionless numbers , Energy dissipation

Improvement in the Rapid Startup Performance for the Solar Steam Turbine

Peng Wang, Gang Chen, WenFu Li

GT 2018; V008T29A004doi:https://doi.org/10.1115/GT2018-75174

Abstract

View Articletitled, Improvement in the Rapid Startup Performance for the Solar Steam Turbine

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Topics: Solar energy , Steam turbines , Steam , Computer simulation , Cylinders , Exhaust systems , Fatigue life , Finite element methods , Finite element model , Stress

Analysis of Steam Turbine Blade Tip Excitation Forces by Means of Computational Fluid Dynamics and Experimental Cascade Results

Stefan aus der Wiesche, Maximilian Passmann

GT 2018; V008T29A005doi:https://doi.org/10.1115/GT2018-75179

Abstract

View Articletitled, Analysis of Steam Turbine Blade Tip Excitation Forces by Means of Computational Fluid Dynamics and Experimental Cascade Results

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Topics: Blades , Cascades (Fluid dynamics) , Computational fluid dynamics , Excitation , Steam turbines , Fluids , Pressure , Discharge coefficient , Inflow , Steam

The Pressure Field at the Output From a Low Pressure Exhaust Hood and Condenser Neck of the 1090 MW Steam Turbine: Experimental and Numerical Research

Michal Hoznedl, Antonín Živný, Aleš Macálka, Robert Kalista, Kamil Sedlák, Lukáš Bednář, Ladislav Tajč

GT 2018; V008T29A006doi:https://doi.org/10.1115/GT2018-75248

Abstract

View Articletitled, The Pressure Field at the Output From a Low Pressure Exhaust Hood and Condenser Neck of the 1090 MW Steam Turbine: Experimental and Numerical Research

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Topics: Condensers (steam plant) , Exhaust systems , Pressure , Steam turbines , Flow (Dynamics) , Blades , Boundary-value problems , Computation , Computational fluid dynamics , Cooling

Steam Turbine Exhaust Optimization Based on Gaussian Covariance Networks Using Transient CFD Simulations

Kevin Cremanns, Dirk Roos, Andreas Penkner, Simon Hecker, Christian Musch

GT 2018; V008T29A007doi:https://doi.org/10.1115/GT2018-75261

Abstract

View Articletitled, Steam Turbine Exhaust Optimization Based on Gaussian Covariance Networks Using Transient CFD Simulations

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Topics: Computational fluid dynamics , Exhaust systems , Optimization , Simulation , Steam turbines , Transients (Dynamics) , Geometry , Pareto optimization , Artificial neural networks , Design

Robust Design Optimization of a Steam Turbine Labyrinth Seal Based on Surrogate Models

Kevin Cremanns, Dirk Roos, Simon Hecker, Andreas Penkner, Christian Musch

GT 2018; V008T29A008doi:https://doi.org/10.1115/GT2018-75262

Abstract

View Articletitled, Robust Design Optimization of a Steam Turbine Labyrinth Seal Based on Surrogate Models

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Topics: Design , Optimization , Steam turbines , Computational fluid dynamics , Pareto optimization , Robustness , Enthalpy , Flow (Dynamics) , Power stations , Temperature

Improvement of Steam Turbine Stage Efficiency by Controlling Rotor Shroud Leakage Flows: Part I — Design Concept and Typical Performance of a Swirl Breaker

Takanori Shibata, Hisataka Fukushima, Kiyoshi Segawa

GT 2018; V008T29A009doi:https://doi.org/10.1115/GT2018-75269

Abstract

View Articletitled, Improvement of Steam Turbine Stage Efficiency by Controlling Rotor Shroud Leakage Flows: Part I — Design Concept and Typical Performance of a Swirl Breaker

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Topics: Design , Leakage flows , Rotors , Steam turbines , Cavities , Blades , Computational fluid dynamics , Turbines , Flow (Dynamics) , Geometry

Improvement of Steam Turbine Stage Efficiency by Controlling Rotor Shroud Leakage Flows: Part II — Effect of Axial Distance Between a Swirl Breaker and Rotor Shroud on Efficiency Improvement

Chongfei Duan, Hisataka Fukushima, Kiyoshi Segawa, Takanori Shibata, Hidetoshi Fujii

GT 2018; V008T29A010doi:https://doi.org/10.1115/GT2018-75270

Abstract

View Articletitled, Improvement of Steam Turbine Stage Efficiency by Controlling Rotor Shroud Leakage Flows: Part II — Effect of Axial Distance Between a Swirl Breaker and Rotor Shroud on Efficiency Improvement

PDF

Topics: Leakage flows , Rotors , Steam turbines , Cavities , Computational fluid dynamics , Pressure , Geometry , Design , Flow (Dynamics) , Reliability

POD and Extended-POD Analysis of Pressure Fluctuations and Vortex Structures Inside a Steam Turbine Control Valve

Peng Wang, Hongyu Ma, Yingzheng Liu

GT 2018; V008T29A011doi:https://doi.org/10.1115/GT2018-75312

Abstract

View Articletitled, POD and Extended-POD Analysis of Pressure Fluctuations and Vortex Structures Inside a Steam Turbine Control Valve

PDF

Topics: Fluctuations (Physics) , Pressure , Steam turbines , Valves , Vortices , Flow (Dynamics) , Oscillations , Simulation , Acoustics , Databases

Steam Flow and Heat Transfer in the Intermediate Pressure Cylinder of the Ultra-Supercritical Steam Turbine

Chong Sun, Daiwei Zhou, Xiaocheng Zhu, Zhaohui Du

GT 2018; V008T29A012doi:https://doi.org/10.1115/GT2018-75343

Abstract

View Articletitled, Steam Flow and Heat Transfer in the Intermediate Pressure Cylinder of the Ultra-Supercritical Steam Turbine

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Topics: Cylinders , Flow (Dynamics) , Heat transfer , Pressure , Steam , Steam turbines , Cooling , Heat transfer coefficients , Turbulence , Boundary-value problems

The Effect of Stage-Diffuser Interaction on the Aerodynamic Performance and Design of LP Steam Turbine Exhaust Systems

Bowen Ding, Liping Xu, Jiandao Yang, Rui Yang, Yuejin Dai

GT 2018; V008T29A013doi:https://doi.org/10.1115/GT2018-75375

Abstract

View Articletitled, The Effect of Stage-Diffuser Interaction on the Aerodynamic Performance and Design of LP Steam Turbine Exhaust Systems

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Topics: Design , Diffusers , Exhaust systems , Steam turbines , Rotors , Blades , Stress , Flow (Dynamics) , Machinery , Computational fluid dynamics

A Novel Evaluation Procedure for the Prediction and Assessment of Diffuser Humming in Steam Turbines

Johannes Tusche, Christian Musch

GT 2018; V008T29A014doi:https://doi.org/10.1115/GT2018-75499

Abstract

View Articletitled, A Novel Evaluation Procedure for the Prediction and Assessment of Diffuser Humming in Steam Turbines

PDF

Topics: Diffusers , Steam turbines , Pressure , Resonance , Turbines , Blades , Computational methods , Transients (Dynamics) , Turbine blades

On the Evaluation and Consideration of Fracture Mechanical Notch Support Within a Creep Fatigue Lifetime Assessment

Christian Kontermann, Henning Almstedt, Falk Müller, Matthias Oechsner

GT 2018; V008T29A015doi:https://doi.org/10.1115/GT2018-75681

Abstract

View Articletitled, On the Evaluation and Consideration of Fracture Mechanical Notch Support Within a Creep Fatigue Lifetime Assessment

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Topics: Creep , Fatigue , Fracture (Materials) , Fracture (Process) , Finite element methods , Finite element model , Steam turbines

Utilization of a Thermo-Mechanical Model Coupled With Multi-Objective Optimization to Enhance the Start-Up Process of Solar Steam Turbines

Monika Topel, Andrea Vitrano, Björn Laumert

GT 2018; V008T29A016doi:https://doi.org/10.1115/GT2018-75829

Abstract

View Articletitled, Utilization of a Thermo-Mechanical Model Coupled With Multi-Objective Optimization to Enhance the Start-Up Process of Solar Steam Turbines

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Topics: Pareto optimization , Solar energy , Steam turbines , Thermomechanics , Turbines , Concentrating solar power , Machinery , Temperature , Climate change , Damage

Application of Fluidic Curtains to Turbine Rotor Tip Seal Geometries

James MacCalman, Simon Hogg, Grant Ingram

GT 2018; V008T29A017doi:https://doi.org/10.1115/GT2018-75835

Abstract

View Articletitled, Application of Fluidic Curtains to Turbine Rotor Tip Seal Geometries

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Topics: Computational fluid dynamics , Design , Engines , Geometry , High pressure (Physics) , Leakage , Rotors , Sealing (Process) , Steam turbines , Turbines

Metallographic and Materials Evaluation of a Cracked Radial Steam Turbine Rotor

Vamadevan Gowreesan, Wayne Greaves

GT 2018; V008T29A018doi:https://doi.org/10.1115/GT2018-75897

Abstract

View Articletitled, Metallographic and Materials Evaluation of a Cracked Radial Steam Turbine Rotor

PDF

Topics: Rotors , Steam turbines , Fracture (Materials) , Disks , Embrittlement , Fracture (Process) , Alloys , Blades , Fatigue , Impact testing

Unsteady Conjugate Heat Transfer Investigation of a Multistage Steam Turbine in Warm-Keeping Operation With Hot Air

Piotr Łuczyński, Dennis Toebben, Manfred Wirsum, Wolfgang F. D. Mohr, Klaus Helbig

GT 2018; V008T29A019doi:https://doi.org/10.1115/GT2018-75926

Abstract

View Articletitled, Unsteady Conjugate Heat Transfer Investigation of a Multistage Steam Turbine in Warm-Keeping Operation With Hot Air

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Topics: Heat transfer , Steam turbines , Flow (Dynamics) , Vortices , Turbines , Engineering simulation , Simulation , Blades , Corners (Structural elements) , Cycles

Detached-Eddy Simulation Applied to the Tip-Clearance Flow in a Last Stage Steam Turbine Blade

Tianrui Sun, Paul Petrie-Repar, Damian M. Vogt

GT 2018; V008T29A020doi:https://doi.org/10.1115/GT2018-75943

Abstract

View Articletitled, Detached-Eddy Simulation Applied to the Tip-Clearance Flow in a Last Stage Steam Turbine Blade

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Topics: Blades , Clearances (Engineering) , Eddies (Fluid dynamics) , Flow (Dynamics) , Simulation , Steam turbines , Vortices , Aeroelasticity , Computer software , Flutter (Aerodynamics)

Analytical Heat Transfer Correlation for a Multistage Steam Turbine in Warm-Keeping Operation With Air

Dennis Toebben, Adrian Hellmig, Piotr Luczynski, Manfred Wirsum, Wolfgang F. D. Mohr, Klaus Helbig

GT 2018; V008T29A021doi:https://doi.org/10.1115/GT2018-76091

Abstract

View Articletitled, Analytical Heat Transfer Correlation for a Multistage Steam Turbine in Warm-Keeping Operation With Air

PDF

Topics: Heat transfer , Steam turbines , Simulation , Fluids , Flow (Dynamics) , Heat , Blades , Computer simulation , Convection , Design

Experimental Investigation on Heat Up and Cool Down Procedure of a Steam Turbine Valve Casing

Sihua Xu, Zhiqiang Hu, Jin He, Lei Xiao, YueYue Li

GT 2018; V008T29A022doi:https://doi.org/10.1115/GT2018-76252

Abstract

View Articletitled, Experimental Investigation on Heat Up and Cool Down Procedure of a Steam Turbine Valve Casing

PDF

Topics: Heat , Steam turbines , Valves , Temperature , China , Design , Heat transfer , Power stations , Temperature sensors , Transients (Dynamics)

Numerical Study on Deformation of Gland Seal Housing at LP Ends on a Nuclear Steam Turbine

Yanan Guo, Danmei Xie, Xiangjun Huang, Huabing Zheng, Ziyue Mei, Hengliang Zhang

GT 2018; V008T29A023doi:https://doi.org/10.1115/GT2018-76277

Abstract

View Articletitled, Numerical Study on Deformation of Gland Seal Housing at LP Ends on a Nuclear Steam Turbine

PDF

Topics: Deformation , Steam turbines , Accidents , Boundary-value problems , Clearances (Engineering) , Computer software , Finite element analysis , Geometry , Nuclear power stations , Rotation

The Physical Mechanism of Tip Leakage Loss Reduction by Means of Passive Injection in Low Mach Number Flows

Maximilian Passmann, Stefan aus der Wiesche, Franz Joos, Reinhard Willinger

GT 2018; V008T29A024doi:https://doi.org/10.1115/GT2018-76336

Abstract

View Articletitled, The Physical Mechanism of Tip Leakage Loss Reduction by Means of Passive Injection in Low Mach Number Flows

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Topics: Flow (Dynamics) , Leakage , Mach number , Cascades (Fluid dynamics) , Clearances (Engineering) , Numerical analysis , Turbines , Turbomachinery , Vortices

Second Law Analysis of Condensing Steam Flows

Marius Grübel, Markus Schatz, Damian M. Vogt

GT 2018; V008T29A025doi:https://doi.org/10.1115/GT2018-76388

Abstract

View Articletitled, Second Law Analysis of Condensing Steam Flows

PDF

Topics: Flow (Dynamics) , Steam , Entropy , Kinematics , Relaxation (Physics) , Boundary layers , Cascades (Fluid dynamics) , Drops , Inertia (Mechanics) , Shock (Mechanics)

Thermal System Optimization and Energy Grade Analysis of 700°C HUSC Steam Turbine Using a EC System

Haiyu He, Tao Chen, Shiwang Fan, Xiaohua Xia, Fang Zhang, Jie Yu, Rui Yang, Jiandao Yang

GT 2018; V008T29A026doi:https://doi.org/10.1115/GT2018-76394

Abstract

View Articletitled, Thermal System Optimization and Energy Grade Analysis of 700°C HUSC Steam Turbine Using a EC System

PDF

Topics: Optimization , Steam turbines , Thermal systems , Steam , Temperature , Feedwater , Stress , Carbon dioxide , Coal , Cycles

Development of a New High-Strength Steel for Low Pressure Steam Turbine End-Stage Blades

Hannes Teuber, Jochen Barnikel, Michael Dankert, Walter David, Andrei Ghicov, Simon Voss

GT 2018; V008T29A027doi:https://doi.org/10.1115/GT2018-76395

Abstract

View Articletitled, Development of a New High-Strength Steel for Low Pressure Steam Turbine End-Stage Blades

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Topics: Blades , High strength steel , Pressure , Steam turbines , Exhaust systems , Steel , Turbines , Corrosion , Cycles , Design

Unsteady Flow Effects on Steam Turbine Last Stage Blades at Very Low Load Operating Condition

Tadashi Tanuma, Michio Ogawa, Hiroshi Okuda, Gaku Hashimoto, Naoki Shibukawa, Kenichi Okuno, Tomohiko Tsukuda

GT 2018; V008T29A028doi:https://doi.org/10.1115/GT2018-76498

Abstract

View Articletitled, Unsteady Flow Effects on Steam Turbine Last Stage Blades at Very Low Load Operating Condition

PDF

Topics: Blades , Steam turbines , Stress , Unsteady flow , Structural analysis , Boundary-value problems , Annulus , Design , Pressure , Vibration

Modeling Partial Admission in Control Stages of Small Steam Turbines With CFD

Juri Bellucci, Filippo Rubechini, Andrea Arnone

GT 2018; V008T29A029doi:https://doi.org/10.1115/GT2018-76528

Abstract

View Articletitled, Modeling Partial Admission in Control Stages of Small Steam Turbines With CFD

PDF

Topics: Computational fluid dynamics , Modeling , Steam turbines , Nozzles , Engineering simulation , Flow (Dynamics) , Mechanical behavior , Numerical analysis , Shapes , Shock (Mechanics)

Development of a Robust LP Blade Family for Variable Speed Applications

Martin Schubert, Johannes Tusche

GT 2018; V008T29A030doi:https://doi.org/10.1115/GT2018-76539

Abstract

View Articletitled, Development of a Robust LP Blade Family for Variable Speed Applications

PDF

Topics: Blades , Resonance , Pressure , Steam turbines , Airfoils , Design , Design methodology , Dynamics (Mechanics) , Exhaust systems , Friction

Numerical Investigation of the Influence of Hood Height Variation on Performance of Low Pressure Steam Turbine Exhaust Hoods

Dickson Munyoki, Markus Schatz, Damian M. Vogt

GT 2018; V008T29A031doi:https://doi.org/10.1115/GT2018-76562

Abstract

View Articletitled, Numerical Investigation of the Influence of Hood Height Variation on Performance of Low Pressure Steam Turbine Exhaust Hoods

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Topics: Exhaust systems , Pressure , Steam turbines , Diffusers , Design , Flow (Dynamics) , Mach number , Deflection , Leakage , Optimization

On Possibilities of Using Relative Shaft Vibration Signals for Rotating Blades Monitoring

Jindrich Liska, Vojtech Vasicek, Jan Jakl

GT 2018; V008T29A032doi:https://doi.org/10.1115/GT2018-76565

Abstract

View Articletitled, On Possibilities of Using Relative Shaft Vibration Signals for Rotating Blades Monitoring

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Topics: Rotating blades , Signals , Vibration , Blades , Monitoring systems , Steam turbines , Failure , Pressure , Reliability , Rotor vibration

An Optimization Design Platform for Fir-Tree Root and Groove for Steam Turbine

Deqi Yu, Xiaojun Zhang, Jiandao Yang, Kai Cheng, Weilin Shu, Kai Lv, Ming Li

GT 2018; V008T29A033doi:https://doi.org/10.1115/GT2018-76595

Abstract

View Articletitled, An Optimization Design Platform for Fir-Tree Root and Groove for Steam Turbine

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Topics: Design , Optimization , Steam turbines , Blades , Geometry , Gas turbines , Stress concentration , B-splines , Combined cycle power stations , Genetic algorithms

Effects of Inlet Chamber Structure of the Control Stage on the Unsteady Aerodynamic Force

Keke Gao, Chongyu Wang, Yonghui Xie, Di Zhang

GT 2018; V008T29A034doi:https://doi.org/10.1115/GT2018-76632

Abstract

View Articletitled, Effects of Inlet Chamber Structure of the Control Stage on the Unsteady Aerodynamic Force

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Topics: Aerodynamics , Fluid-dynamic forces , Flow (Dynamics) , Blades , Pressure , Turbines , Entropy , Fatigue , Fatigue failure , Fracture (Materials)

Optimization of a 900 mm Tilting-Pad Journal Bearing in Large Steam Turbines by Advanced Modeling and Validation

Ümit Mermertas, Thomas Hagemann, Clément Brichart

GT 2018; V008T29A035doi:https://doi.org/10.1115/GT2018-76766

Abstract

View Articletitled, Optimization of a 900 mm Tilting-Pad Journal Bearing in Large Steam Turbines by Advanced Modeling and Validation

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Topics: Journal bearings , Modeling , Optimization , Steam turbines , Bearings , Rotors , Temperature , Clearances (Engineering) , Computation , Computer software