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Proceedings Papers

Tip Vortex Effects on Air-Cooled Condenser Axial Flow Fan Performance

Johannes P. Pretorius, Sybrand J. Van Der Spuy, Martin Strümpfer
Proc. ASME. GT2022, Volume 5: Education; Electric Power; Fans and Blowers, V005T10A011, June 13–17, 2022
Paper No: GT2022-82283
DOI: https://doi.org/10.1115/GT2022-82283
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Topics: Axial flow, Condensers (steam plant), Wake turbulence
Proceedings Papers

Design of an Air-Cooled Condenser for CO2-Based Mixtures: Model Development, Validation and Heat Exchange Gain with Internal Microfins

Viktoria Illyés, Ettore Morosini, Michele Doninelli, Pierre-Luc David, Xavier Guerif, Andreas Werner, Gioele Di Marcoberardino, Giampaolo Manzolini
Proc. ASME. GT2022, Volume 9: Supercritical CO2, V009T28A016, June 13–17, 2022
Paper No: GT2022-82438
DOI: https://doi.org/10.1115/GT2022-82438
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Topics: Carbon dioxide, Condensers (steam plant), Design, Heat, Heat exchangers, Model development
Proceedings Papers

Preliminary Evaluation of the 24 Ft. Diameter Fan Performance In the MinWaterCSP Large Cooling Systems Test Facility

S. J. van der Spuy, D. N. J. Els, L. Tieghi, G. Delibra, A. Corsini, F. G. Louw, A. Zapke, C. J. Meyer
Proc. ASME. GT2021, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Wind Energy; Scholar Lecture, V001T10A005, June 7–11, 2021
Paper No: GT2021-59130
DOI: https://doi.org/10.1115/GT2021-59130
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Topics: Blades, Cooling systems, Pressure, Test facilities, Computational fluid dynamics, Rotors, Actuators, Axial flow, Concentrating solar power, Condensers (steam plant)
Proceedings Papers

Effect of Tip Vortex Reduction on Air-Cooled Condenser Axial Flow Fan Performance: An Experimental Investigation

J. P. Pretorius, J. A. Erasmus
Proc. ASME. GT2021, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Wind Energy; Scholar Lecture, V001T10A003, June 7–11, 2021
Paper No: GT2021-58735
DOI: https://doi.org/10.1115/GT2021-58735
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Topics: Axial flow, Condensers (steam plant), Wake turbulence
Proceedings Papers

Design and Validation of a Large Steam Turbine End-Stage Blade to Meet Current and Future Market Demands

Bertold Lübbe, Jens Aschenbruck, Oliver Pütz, Mira Theidel
Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T22A014, June 7–11, 2021
Paper No: GT2021-59315
DOI: https://doi.org/10.1115/GT2021-59315
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Topics: Blades, Design, Steam turbines, Stress, Steel, Vibration, Condensers (steam plant), Exhaust systems, Pressure, Strain gages
Proceedings Papers

Thermodynamic Analysis of a Novel Ammonia-Water Cogeneration System for Maritime Diesel Engines

Ziyang Cheng, Yaxiong Wang, Qingxuan Sun, Jiangfeng Wang, Pan Zhao, Yiping Dai
Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T17A007, September 21–25, 2020
Paper No: GT2020-15962
DOI: https://doi.org/10.1115/GT2020-15962
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Topics: Combined heat and power, Diesel engines, Kalina cycle, Organic Rankine cycle, Water, Temperature, Thermal efficiency, Cooling, Fluids, Refrigeration
Proceedings Papers

Dynamic Modelling of Small Scale and High Temperature ORC System Using Simulink and CoolProp

Radheesh Dhanasegaran, Antti Uusitalo, Teemu Turunen-Saaresti
Proc. ASME. GT2020, Volume 9: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Steam Turbine, V009T22A003, September 21–25, 2020
Paper No: GT2020-15314
DOI: https://doi.org/10.1115/GT2020-15314
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Topics: Dynamic modeling, High temperature, Organic Rankine cycle, Dynamic models, Cycles, Design, Exhaust systems, Modeling, Pumps, Turbogenerators
Proceedings Papers

Aeromechanical Characterization of a Last Stage Steam Blade at Low Load Operation: Part 2 — Computational Modelling and Comparison

Lorenzo Pinelli, Federico Vanti, Lorenzo Peruzzi, Andrea Arnone, Andrea Bessone, Claudio Bettini, Roberto Guida, Michela Marré Brunenghi, Vaclav Slama
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A017, September 21–25, 2020
Paper No: GT2020-15409
DOI: https://doi.org/10.1115/GT2020-15409
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Topics: Blades, Modeling, Steam, Stress, Damping, Computational fluid dynamics, Flutter (Aerodynamics), Pressure, Steam turbines, Simulation
Proceedings Papers

Blade Surface Pressure Measurements on a Low Pressure Rise Axial Flow Fan

Johannes Rohwer, Sybrand J. van der Spuy, Theodor W. von Backström, Francois G. Louw
Proc. ASME. GT2020, Volume 1: Aircraft Engine; Fans and Blowers, V001T10A001, September 21–25, 2020
Paper No: GT2020-14204
DOI: https://doi.org/10.1115/GT2020-14204
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Topics: Axial flow, Blades, Condensers (steam plant), Pressure, Pressure measurement
Proceedings Papers

The Effect of Hub Configuration on the Performance of an Air-Cooled Steam Condenser Fan

Z. Meiring, S. J. van der Spuy, C. J. Meyer
Proc. ASME. GT2020, Volume 1: Aircraft Engine; Fans and Blowers, V001T10A012, September 21–25, 2020
Paper No: GT2020-15480
DOI: https://doi.org/10.1115/GT2020-15480
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Topics: Condensers (steam plant), Flow (Dynamics), Disks, Axial flow, Design, Pressure, Computational fluid dynamics, Fans, Manufacturing, Modeling
Proceedings Papers

A Co-Simulation Approach to Modeling Air-Cooled Condensers in Windy Conditions

Ruan Engelbrecht, Ryno Laubscher, Johan van der Spuy
Proc. ASME. GT2020, Volume 1: Aircraft Engine; Fans and Blowers, V001T10A013, September 21–25, 2020
Paper No: GT2020-16047
DOI: https://doi.org/10.1115/GT2020-16047
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Topics: Computational fluid dynamics, Condensers (steam plant), Modeling, Simulation, Wind
Proceedings Papers

Unsteady Flow Simulation of an Axial Fan for Dry Cooling in a CSP Plant Using the Variational Multiscale Method

Valerio Francesco Barnabei, Alessio Castorrini, Alessandro Corsini, Johan Van der Spuy, Franco Rispoli
Proc. ASME. GT2020, Volume 1: Aircraft Engine; Fans and Blowers, V001T10A014, September 21–25, 2020
Paper No: GT2020-16057
DOI: https://doi.org/10.1115/GT2020-16057
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Topics: Cooling, Simulation, Unsteady flow, Computational fluid dynamics, Flow (Dynamics), Concentrating solar power, Condensers (steam plant), Cooling systems, Emissions, Finite element analysis
Proceedings Papers

Aeroacoustical and Aerodynamical Investigations of Riblets Applied on Low Pressure Turbine Exit Guide Vanes for Two Different Operating Points

M. Zenz, A. Hafizovic, L. Simonassi, P. Leitl, F. Heitmeir, A. Marn
Proc. ASME. GT2019, Volume 2B: Turbomachinery, V02BT43A001, June 17–21, 2019
Paper No: GT2019-90283
DOI: https://doi.org/10.1115/GT2019-90283
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Topics: Guide vanes, Pressure, Turbines, Suction, Acoustics, Blades, Design, Fuel consumption, Probes, Aircraft
Proceedings Papers

Disappearing Thermo-Economic Sanity in Gas Turbine Combined Cycle Ratings: A Critique

S. Can Gülen
Proc. ASME. GT2019, Volume 3: Coal, Biomass, Hydrogen, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T08A003, June 17–21, 2019
Paper No: GT2019-90883
DOI: https://doi.org/10.1115/GT2019-90883
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Topics: Combined cycles, Gas turbines, Thermoeconomics, Turbines, Pressure, Cycles, Temperature, Thermal efficiency, Air flow, Brayton cycle
Proceedings Papers

Numerical Investigation of the Influence of Flow Deflection at the Upper Hood on Performance of Low Pressure Steam Turbine Exhaust Hoods

Dickson Munyoki, Markus Schatz, Damian M. Vogt
Proc. ASME. GT2019, Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines, V008T29A008, June 17–21, 2019
Paper No: GT2019-90391
DOI: https://doi.org/10.1115/GT2019-90391
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Topics: Deflection, Exhaust systems, Flow (Dynamics), Pressure, Steam turbines, Design, Diffusers, Mach number, Turbines, Blades
Proceedings Papers

Separation of Water Film From Last Stage Guide Blades of 1000 MW Steam Turbine

Michal Hoznedl, Ladislav Tajč, Lukáš Bednář, Aleš Macálka, Antonín Živný
Proc. ASME. GT2019, Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines, V008T29A006, June 17–21, 2019
Paper No: GT2019-90221
DOI: https://doi.org/10.1115/GT2019-90221
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Topics: Blades, Separation (Technology), Steam turbines, Water, Suction, Stators, Flow (Dynamics), Computational fluid dynamics, Surface roughness, Diffusers
Proceedings Papers

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
Proc. ASME. GT2018, Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines, V008T29A006, June 11–15, 2018
Paper No: GT2018-75248
DOI: https://doi.org/10.1115/GT2018-75248
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Topics: Condensers (steam plant), Exhaust systems, Pressure, Steam turbines, Flow (Dynamics), Blades, Boundary-value problems, Computation, Computational fluid dynamics, Cooling
Proceedings Papers

Analytical and Experimental Results of a Novel Single-Stage Centrifugal Compressor With Economizer Injection

William T. Cousins, Lei Yu, Vishnu Sishtla, Feng Shen
Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT44A026, June 11–15, 2018
Paper No: GT2018-76967
DOI: https://doi.org/10.1115/GT2018-76967
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Topics: Compressors, Cycles, Design, HVAC equipment, Water, Air conditioning, Computational fluid dynamics, Condensers (steam plant), Diffusers, Energy consumption
Proceedings Papers

Effects of Fan Inflow Distortions on Heat Exchange in Air-Cooled Condensers: Unsteady Computations With Synthetic Blade Model

G. Angelini, T. Bonanni, A. Corsini, G. Delibra, L. Tieghi, D. Volponi
Proc. ASME. GT2018, Volume 1: Aircraft Engine; Fans and Blowers; Marine, V001T09A010, June 11–15, 2018
Paper No: GT2018-76518
DOI: https://doi.org/10.1115/GT2018-76518
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Topics: Blades, Computation, Condensers (steam plant), Heat, Inflow, Fans, Flow (Dynamics), Accounting, Actuators, Axial flow
Proceedings Papers

Numerical Investigation and Validation of the 1 090 MW Steam Turbine Exhaust Hood Flow Field

A. Živný, A. Macálka, M. Hoznedl, K. Sedlák, M. Hajšman, M. Kolovratník
Proc. ASME. GT2017, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T29A015, June 26–30, 2017
Paper No: GT2017-63576
DOI: https://doi.org/10.1115/GT2017-63576
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Topics: Exhaust systems, Flow (Dynamics), Steam turbines, Diffusers, Computational fluid dynamics, Pressure, Turbines, Nuclear power stations, Steam, Blades