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Proceedings Papers

Design Optimization of Heat Exchangers for Aero Engines With the Use of a Surrogate Model Incorporating Performance Characteristics and Geometrical Constraints

Christina Salpingidou, Dimitrios Misirlis, Zinon Vlahostergios, Michael Flouros, Fabian Donus, Kyros Yakinthos

Proc. ASME. GT2018, Volume 5C: Heat Transfer, V05CT22A004, June 11–15, 2018

Paper No: GT2018-76097

DOI: https://doi.org/10.1115/GT2018-76097

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Topics: Aircraft engines, Design, Heat exchangers, Optimization, Performance characterization, Fuel consumption, Cycles, Weight (Mass)

Proceedings Papers

Investigation and Assessment of the Performance of Various Recuperative Cycles Based on the Intercooled Recuperation Concept

Christina Salpingidou, Zinon Vlahostergios, Dimitrios Misirlis, Michael Flouros, Fabian Donus, Kyros Yakinthos

Proc. ASME. GT2018, Volume 3: Coal, Biomass, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T06A020, June 11–15, 2018

Paper No: GT2018-76778

DOI: https://doi.org/10.1115/GT2018-76778

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Topics: Aircraft engines, Combustion chambers, Cycles, Design, Emissions, Engines, Fluids, Fuel consumption, Heat recovery, Heat transfer

Journal Articles

Exergy Analysis and Performance Assessment for Different Recuperative Thermodynamic Cycles for Gas Turbine Applications

Christina Salpingidou, Dimitrios Misirlis, Zinon Vlahostergios, Stefan Donnerhack, Michael Flouros, Apostolos Goulas, Kyros Yakinthos

J. Eng. Gas Turbines Power. July 2018, 140(7): 071701.

Paper No: GTP-17-1342

DOI: https://doi.org/10.1115/1.4038362

Published Online: April 10, 2018

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Topics: Aircraft engines, Cycles, Exergy, Exergy analysis, Gas turbines, Heat exchangers, Turbines, Thermodynamic cycles, Pressure, Engines

Proceedings Papers

Development, Numerical Investigation and Experimental Validation of a New Recuperator Design for Aero Engines Applications

Zinon Vlahostergios, Dimitrios Misirlis, Michael Flouros, Christina Salpingidou, Stefan Donnerhack, Apostolos Goulas, Kyros Yakinthos

Proc. ASME. GT2017, Volume 2B: Turbomachinery, V02BT41A035, June 26–30, 2017

Paper No: GT2017-64362

DOI: https://doi.org/10.1115/GT2017-64362

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Topics: Aircraft engines, Design, Exhaust systems, Emissions, Engines, Fuel consumption, Heat exchangers, Nozzles, Pollution, Pressure

Proceedings Papers

Exergy Analysis and Performance Assessment for Different Recuperative Thermodynamic Cycles for Gas Turbine Applications

Christina Salpingidou, Dimitrios Misirlis, Zinon Vlahostergios, Stefan Donnerhack, Michael Flouros, Apostolos Goulas, Kyros Yakinthos

Proc. ASME. GT2017, Volume 3: Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration Applications; Organic Rankine Cycle Power Systems, V003T06A010, June 26–30, 2017

Paper No: GT2017-63705

DOI: https://doi.org/10.1115/GT2017-63705

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Topics: Exergy analysis, Gas turbines, Thermodynamic cycles, Cycles, Heat exchangers, Turbines, Engines, Exergy, Heat recovery, Aircraft engines

Journal Articles

Ejector Application for Scavenging of an Aero Engine Bearing Chamber

Michael Flouros, Christina Salpingidou, Kyros Yakinthos, Markus Hirschmann, Francois Cottier

J. Eng. Gas Turbines Power. October 2017, 139(10): 101202.

Paper No: GTP-17-1022

DOI: https://doi.org/10.1115/1.4036516

Published Online: May 16, 2017

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Topics: Bearings, Ejectors, Flow (Dynamics), Nozzles, Pressure, Diffusers

Journal Articles

Two-Phase Flow Pressure Drop in Corrugated Tubes Used in an Aero-engine Oil System

Michael Flouros, Andreas Kanarachos, Kyros Yakinthos, Christina Salpingidou, Francois Cottier

J. Eng. Gas Turbines Power. June 2016, 138(6): 062603.

Paper No: GTP-15-1423

DOI: https://doi.org/10.1115/1.4031627

Published Online: November 17, 2015

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Topics: Flow (Dynamics), Pressure drop, Two-phase flow, Pipes, Computation, Water, Pressure, Aircraft engines

Journal Articles

Thermal and Flow Phenomena Associated With the Behavior of Brush Seals in Aero Engine Bearing Chambers

Michael Flouros, Patrick Hendrick, Bilal Outirba, Francois Cottier, Stephan Proestler

J. Eng. Gas Turbines Power. September 2015, 137(9): 092503.

Paper No: GTP-14-1631

DOI: https://doi.org/10.1115/1.4029711

Published Online: September 1, 2015

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Topics: Bearings, Computational fluid dynamics, Finite element analysis, Flow (Dynamics), Pressure, Rotors, Temperature, Aircraft engines, Transients (Dynamics), Pyrometers

Journal Articles

Two-Phase Flow Heat Transfer and Pressure Drop in Horizontal Scavenge Pipes in an Aero-engine

Michael Flouros, Georgios Iatrou, Kyros Yakinthos, Francois Cottier, Markus Hirschmann

J. Eng. Gas Turbines Power. August 2015, 137(8): 081901.

Paper No: GTP-14-1586

DOI: https://doi.org/10.1115/1.4029389

Published Online: August 1, 2015

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Topics: Flow (Dynamics), Heat transfer, Pipes, Pressure drop, Two-phase flow, Temperature

Proceedings Papers

Two-Phase Flow Heat Transfer and Pressure Drop in Horizontal Scavenge Pipes in an Aero Engine

Michael Flouros, Georgios Iatrou, Kyros Yakinthos, Francois Cottier, Markus Hirschmann

Proc. ASME. GT2014, Volume 5C: Heat Transfer, V05CT16A001, June 16–20, 2014

Paper No: GT2014-25011

DOI: https://doi.org/10.1115/GT2014-25011

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Topics: Aircraft engines, Heat transfer, Pipes, Pressure drop, Two-phase flow, Bearings, Flow (Dynamics), Vents, Engines, Heat

Proceedings Papers

Thermal and Flow Phenomena Associated With the Behavior of Brush Seals in Aero Engine Bearing Chambers

Michael Flouros, Patrick Hendrick, Bilal Outirba, Francois Cottier, Stephan Proestler

Proc. ASME. GT2014, Volume 5C: Heat Transfer, V05CT16A012, June 16–20, 2014

Paper No: GT2014-25538

DOI: https://doi.org/10.1115/GT2014-25538

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Topics: Aircraft engines, Bearings, Flow (Dynamics), Rotors, Temperature, Engines, Finite element analysis, Fuels, Gas turbines, Heat

Proceedings Papers

Active Outer Ring Cooling of High Loaded and High Speed Ball Bearings

Michael Flouros, Markus Hirschmann, Francois Cottier, Peter Gloeckner, Klaus Dullenkopf

Proc. ASME. GT2012, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation, 1-8, June 11–15, 2012

Paper No: GT2012-68138

DOI: https://doi.org/10.1115/GT2012-68138

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Topics: Ball bearings, Cooling, Bearings, Heat, Aircraft engines, Centrifugal force, Design, Fins, Flow (Dynamics), Friction

Proceedings Papers

Transient Temperature Measurements in the Contact Zone Between Brush Seals of Kevlar and Metallic Type for Bearing Chamber Sealing Using a Pyrometric Technique

Michael Flouros, Martin Stadlbauer, Francois Cottier, Stephan Proestler, Stefan Beichl

Proc. ASME. GT2012, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation, 73-80, June 11–15, 2012

Paper No: GT2012-68354

DOI: https://doi.org/10.1115/GT2012-68354

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Topics: Bearings, Sealing (Process), Temperature measurement, Transients (Dynamics), Rotors, Aircraft engines, Temperature, Contamination, Aeronautics, Air conditioning

Proceedings Papers

Ejector Scavenging of Bearing Chambers: A Numerical and Experimental Investigation

Michael Flouros, Francois Cottier, Markus Hirschmann, Joachim Kutz, Agnes Jocher

Proc. ASME. GT2012, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation, 9-15, June 11–15, 2012

Paper No: GT2012-68139

DOI: https://doi.org/10.1115/GT2012-68139

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Topics: Bearings, Ejectors, Engines, Pumps, Aircraft engines, Design, System architecture, Aeronautics, Dimensional analysis, Flow (Dynamics)

Journal Articles

Transient Temperature Measurements in the Contact Zone Between Brush Seals of Kevlar and Metallic Type for Bearing Chamber Sealing Using a Pyrometric Technique

Michael Flouros, Martin Stadlbauer, Francois Cottier, Stephan Proestler, Stefan Beichl

J. Eng. Gas Turbines Power. August 2013, 135(8): 081603.

Paper No: GTP-13-1065

DOI: https://doi.org/10.1115/1.4024258

Published Online: June 25, 2013

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Topics: Bearings, Pyrometers, Rotors, Sealing (Process), Temperature, Transients (Dynamics), Temperature measurement, Pressure, Radiation (Physics), Fibers

Journal Articles

Ejector Scavenging of Bearing Chambers. A Numerical and Experimental Investigation

Michael Flouros, Francois Cottier, Markus Hirschmann, Joachim Kutz, Agnes Jocher

J. Eng. Gas Turbines Power. August 2013, 135(8): 081602.

Paper No: GTP-13-1066

DOI: https://doi.org/10.1115/1.4024259

Published Online: June 24, 2013

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Topics: Bearings, Ejectors, Flow (Dynamics)

Journal Articles

Active Outer Ring Cooling of High-Loaded and High-Speed Ball Bearings

Michael Flouros, Markus Hirschmann, Francois Cottier, Peter Gloeckner, Klaus Dullenkopf

J. Eng. Gas Turbines Power. August 2013, 135(8): 081902.

Paper No: GTP-13-1062

DOI: https://doi.org/10.1115/1.4024257

Published Online: June 24, 2013

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Topics: Ball bearings, Bearings, Cooling, Flow (Dynamics), Temperature, Heat, Heat transfer

Journal Articles

Direct Outer Ring Cooling of a High Speed Jet Engine Mainshaft Ball Bearing: Experimental Investigation Results

Peter Gloeckner, Klaus Dullenkopf, Michael Flouros

J. Eng. Gas Turbines Power. June 2011, 133(6): 062503.

DOI: https://doi.org/10.1115/1.4002355

Published Online: February 17, 2011

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Topics: Ball bearings, Bearings, Cooling, Flow (Dynamics), Temperature, Jet engines, Stress, Heat

Proceedings Papers

Direct Outer Ring Cooling of a High Speed Jet Engine Mainshaft Ball Bearing: Experimental Investigation Results

Peter Gloeckner, Klaus Dullenkopf, Michael Flouros

Proc. ASME. GT2010, Volume 4: Heat Transfer, Parts A and B, 1209-1216, June 14–18, 2010

Paper No: GT2010-23312

DOI: https://doi.org/10.1115/GT2010-23312

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Topics: Ball bearings, Cooling, Jet engines, Bearings, Aircraft propulsion, Energy dissipation, Flight, Reliability, Stress, Temperature

Journal Articles

Impact of Screens Around Bearings on the Flow and Heat Transfer in the Vent and Scavenge Oil Pipes in Bearing Chambers

Michael Flouros, Francois Cottier

J. Eng. Gas Turbines Power. March 2011, 133(3): 032503.

DOI: https://doi.org/10.1115/1.4002153

Published Online: November 12, 2010

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Topics: Bearings, Flow (Dynamics), Pipes, Vents, Heat transfer, Computational fluid dynamics, Temperature

Journal citation

NARROW

Design Optimization of Heat Exchangers for Aero Engines With the Use of a Surrogate Model Incorporating Performance Characteristics and Geometrical Constraints

Investigation and Assessment of the Performance of Various Recuperative Cycles Based on the Intercooled Recuperation Concept

Exergy Analysis and Performance Assessment for Different Recuperative Thermodynamic Cycles for Gas Turbine Applications

Development, Numerical Investigation and Experimental Validation of a New Recuperator Design for Aero Engines Applications

Exergy Analysis and Performance Assessment for Different Recuperative Thermodynamic Cycles for Gas Turbine Applications

Ejector Application for Scavenging of an Aero Engine Bearing Chamber

Two-Phase Flow Pressure Drop in Corrugated Tubes Used in an Aero-engine Oil System

Thermal and Flow Phenomena Associated With the Behavior of Brush Seals in Aero Engine Bearing Chambers

Two-Phase Flow Heat Transfer and Pressure Drop in Horizontal Scavenge Pipes in an Aero-engine

Two-Phase Flow Heat Transfer and Pressure Drop in Horizontal Scavenge Pipes in an Aero Engine

Thermal and Flow Phenomena Associated With the Behavior of Brush Seals in Aero Engine Bearing Chambers

Active Outer Ring Cooling of High Loaded and High Speed Ball Bearings

Transient Temperature Measurements in the Contact Zone Between Brush Seals of Kevlar and Metallic Type for Bearing Chamber Sealing Using a Pyrometric Technique

Ejector Scavenging of Bearing Chambers: A Numerical and Experimental Investigation

Transient Temperature Measurements in the Contact Zone Between Brush Seals of Kevlar and Metallic Type for Bearing Chamber Sealing Using a Pyrometric Technique

Ejector Scavenging of Bearing Chambers. A Numerical and Experimental Investigation

Active Outer Ring Cooling of High-Loaded and High-Speed Ball Bearings

Direct Outer Ring Cooling of a High Speed Jet Engine Mainshaft Ball Bearing: Experimental Investigation Results

Direct Outer Ring Cooling of a High Speed Jet Engine Mainshaft Ball Bearing: Experimental Investigation Results

Impact of Screens Around Bearings on the Flow and Heat Transfer in the Vent and Scavenge Oil Pipes in Bearing Chambers

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