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Journal Articles

Numerical Modeling of a Primary Heat Exchanger in sCO 2 Power Cycles for Thermal Energy Storage Systems

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Alexandre Guille, Malini Bangalore Mohankumar, Sebastian Unger, Uwe Hampel
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2025, 147(6): 061025.
Paper No: GTP-24-1677
https://doi.org/10.1115/1.4066892
Published Online: December 20, 2024
View Articletitled, Numerical Modeling of a Primary Heat Exchanger in sCO 2 Power Cycles for Thermal Energy Storage Systems
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Topics: Computational fluid dynamics, Flow (Dynamics), Fluids, Heat exchangers, Heat transfer, Optimization, Pressure, Pressure drop, Printed circuit heat exchangers, Pumps
Proceedings Papers

Thermal Performance Assessment of High-Temperature Sensible Solid Thermal Energy Storage (SSTES): Various Designs, Storage Materials and Heat Transfer Fluids

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Malini Bangalore Mohankumar, Sebastian Unger, Alexandre Guille, Andres Carro, Ricardo Chacartegui Ramírez, Uwe Hampel
Proc. ASME. GT2024, Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, V006T09A004, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126448
https://doi.org/10.1115/GT2024-126448
View Paper titled, Thermal Performance Assessment of High-Temperature Sensible Solid Thermal Energy Storage (SSTES): Various Designs, Storage Materials and Heat Transfer Fluids
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Topics: Fluids, Heat, Heat transfer, High temperature, Storage, Thermal energy storage
Proceedings Papers

The sCO2 Facility CARBOSOLA: Design, Purpose and Use for Investigating Geological Energy Storage Cycles

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Sebastian Unger, Stefan Fogel, Peter Schütz, Ricardo Chacartegui Ramirez, Andres Carro, Julio Carneiro, Uwe Hampel
Proc. ASME. GT2024, Volume 11: Supercritical CO2, V011T28A004, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122133
https://doi.org/10.1115/GT2024-122133
View Paper titled, The sCO2 Facility CARBOSOLA: Design, Purpose and Use for Investigating Geological Energy Storage Cycles
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Topics: Cycles, Design, Energy storage
Proceedings Papers

Numerical Modelling of a Primary Heat Exchanger in sCO2 Power Cycles for Thermal Energy Storage Systems

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Alexandre Guille, Malini Bangalore Mohankumar, Sebastian Unger, Uwe Hampel
Proc. ASME. GT2024, Volume 11: Supercritical CO2, V011T28A024, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127401
https://doi.org/10.1115/GT2024-127401
View Paper titled, Numerical Modelling of a Primary Heat Exchanger in sCO2 Power Cycles for Thermal Energy Storage Systems
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Topics: Computational fluid dynamics, Heat exchangers, Modeling, Printed circuit heat exchangers, Thermal energy storage, Thermodynamic power cycles
Journal Articles

Ultrafast X-Ray Computed Tomography Imaging for Hydrodynamic Investigations of Gas–Liquid Two-Phase Flow in Centrifugal Pumps

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Thomas Schäfer, Martin Neumann-Kipping, André Bieberle, Martina Bieberle, Uwe Hampel
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. April 2020, 142(4): 041502.
Paper No: FE-19-1607
https://doi.org/10.1115/1.4045497
Published Online: January 24, 2020
View Articletitled, Ultrafast X-Ray Computed Tomography Imaging for Hydrodynamic Investigations of Gas–Liquid Two-Phase Flow in Centrifugal Pumps
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Topics: Centrifugal pumps, Computerized tomography, Imaging, Impellers, Two-phase flow, Gamma rays, Pumps, Flow (Dynamics)
Proceedings Papers

Corrosion of Hot-Dip Galvanized Containment Installations: A Potential Cause for Thermal-Hydraulic Effects After LOCA in PWR?

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Holger Kryk, Ulrich Harm, Uwe Hampel
Proc. ASME. ICONE24, Volume 3: Thermal-Hydraulics, V003T09A013, June 26–30, 2016
Publisher: American Society of Mechanical Engineers
Paper No: ICONE24-60273
https://doi.org/10.1115/ICONE24-60273
View Paper titled, Corrosion of Hot-Dip Galvanized Containment Installations: A Potential Cause for Thermal-Hydraulic Effects After LOCA in PWR?
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Topics: Containment, Corrosion, Pressurized water reactors, Coolants, Precipitation, Chemistry, Temperature, Test facilities, Cladding systems (Building), Cycles
Journal Articles

An Experimental Study on the Gas Entrainment in Horizontally and Vertically Installed Centrifugal Pumps

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Martin Neumann, Thomas Schäfer, André Bieberle, Uwe Hampel
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. September 2016, 138(9): 091301.
Paper No: FE-15-1711
https://doi.org/10.1115/1.4033029
Published Online: May 25, 2016
View Articletitled, An Experimental Study on the Gas Entrainment in Horizontally and Vertically Installed Centrifugal Pumps
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Topics: Centrifugal pumps, Flow (Dynamics), Impellers, Pumps, Swirling flow, Wheels, Pressure, Two-phase flow, Rotation, Computerized tomography
Proceedings Papers

Gravitational Settling of Glass Fibers on an Air Bubble

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Gregory Lecrivain, Giacomo Petrucci, Uwe Hampel, Ryoichi Yamamoto
Proc. ASME. AJKFluids2015, Volume 1A: Symposia, Part 2, V01AT16A004, July 26–31, 2015
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2015-16458
https://doi.org/10.1115/AJKFluids2015-16458
View Paper titled, Gravitational Settling of Glass Fibers on an Air Bubble
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Topics: Bubbles, Glass fibers, Particulate matter, Water, Collisions (Physics), Fibers, Poles (Building), Elongation, Microbubbles, Mining
Proceedings Papers

The Gamma Radiation Emitted by a PWR Core Under Severe Accident Conditions

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Carsten Brachem, Jörg Konheiser, Uwe Hampel
Proc. ASME. ICONE22, Volume 3: Next Generation Reactors and Advanced Reactors; Nuclear Safety and Security, V003T06A036, July 7–11, 2014
Publisher: American Society of Mechanical Engineers
Paper No: ICONE22-30843
https://doi.org/10.1115/ICONE22-30843
View Paper titled, The Gamma Radiation Emitted by a PWR Core Under Severe Accident Conditions
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Topics: Accidents, Gamma rays, Pressurized water reactors, Coolants, Engineering simulation, Monitoring systems, Nuclear reactors, Reactor vessels, Simulation
Journal Articles

Experimental Investigation of Horizontal Gas–Liquid Stratified and Annular Flow Using Wire-Mesh Sensor

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Ronald E. Vieira, Netaji R. Kesana, Carlos F. Torres, Brenton S. McLaury, Siamack A. Shirazi, Eckhard Schleicher, Uwe Hampel
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. December 2014, 136(12): 121301.
Paper No: FE-13-1571
https://doi.org/10.1115/1.4027799
Published Online: September 10, 2014
View Articletitled, Experimental Investigation of Horizontal Gas–Liquid Stratified and Annular Flow Using Wire-Mesh Sensor
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Topics: Flow (Dynamics), Porosity, Viscosity, Cathodic protection, Slug flows, Pipes, Sensors
Journal Articles

Influence of the Lagrangian Integral Time Scale Estimation in the Near Wall Region on Particle Deposition

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Grégory Lecrivain, Uwe Hampel
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Technical Briefs
J. Fluids Eng. July 2012, 134(7): 074502.
https://doi.org/10.1115/1.4006912
Published Online: June 25, 2012
View Articletitled, Influence of the Lagrangian Integral Time Scale Estimation in the Near Wall Region on Particle Deposition
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Topics: Particulate matter, Turbulence
Proceedings Papers

Experiments on Air Entrainment due to Free Falling- and Wall-Jets

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Jose M. Lopez, Dana V. Danciu, Marco J. Da Silva, Uwe Hampel, Ram Mohan
Proc. ASME. FEDSM2010, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 2, Fora, 283-291, August 1–5, 2010
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM-ICNMM2010-30789
https://doi.org/10.1115/FEDSM-ICNMM2010-30789
View Paper titled, Experiments on Air Entrainment due to Free Falling- and Wall-Jets
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Topics: Air entrainment, Jets, Bubbles, Image processing, Sensors, Wire mesh, Algorithms, Electromagnetic induction, Pipes, Plumes (Fluid dynamics)