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Supercritical CO2 Power Cycles Symposium

Proceedings of the 8th International sCO2 Power Cycles Symposium

The 8th International sCO2 Power Cycles Symposium was held February 26–29, 2024, in San Antonio, Texas. The following papers and/or presentations were presented at the symposium. They are grouped by session.

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Keynotes, Panel Sessions, Tutorials

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Pre-Conference Tutorial Sessions

sCO2 Power Cycles Fundamentals Tutorial
Jason Wilkes, Southwest Research Institute

sCO2 Cycles Tutorial
Tim Held Echogen Power Systems
Doug Hofer, Southwest Research Institute

sCO2 Oxy-Combustion Tutorial
Steve White, Southwest Research Institute

sCO2 Turbomachinery Tutorial
Jeff Moore, Southwest Research Institute

sCO2 Materials for Supercritical CO2 Applications Tutorial
Prof. Henry Saari – Carleton University
Steven Kung – Electric Power Research Institute
Ganesan Subbaraman – GTI Energy

Heat Exchangers for Supercritical CO2 Power Cycle Applications Tutorial
Cole Replogle, Southwest Research Institute
Renaud Le Pierres, (Parker Hannifin)
Marc Portnoff, Thar Energy, LLC

Keynote Presentation

Karl Wygant, Elliott Ebara Energy

Matt Bauer, DOE-EERE

Chris Clements, Tokamak Energy Ltd. / Jake Acres, UKAE

Chris Fraughton, MAN Energy Solutions

Don Stevenson, GTI Energy

Dr. Young Jae Choi, Hyundai Engineering Co. LTD

Panel Sessions

Panel Session I: Industry Panel – Turbomachinery Manufacturers

Panel Session II: Applications & End Users

Panel Session III: International

Panel Session IV: High-level DOE

Panel Session V: University R&D

Panel Session VI: Industrial/National Labs

Fast Pitch

Bearings & Seals

Paper # 33 – Development of a Dry Gas Seal for high-temperature supercritical carbon dioxide (sCO2) turbines
Thomas Kerr, Southwest Research Institute
Presentation

Paper # 112 – Experimental Demonstration of a Novel Supercritical CO2 Seal Concept on a 2" Static Test Rig
Sevki Cesmeci, Georgia Southern University

Paper # 45 – Bearingless Motor/Generator Opportunities in sCO2 Power Cycles
Eric Severson, University of Wisconsin-Madison
Presentation

Paper # 50 – Preliminary Sizing of Active Magnetic Bearings for sCO2 Waste-Heat Recovery Application
Robert Lipham, Southwest Research Institute
Presentation

Paper # 107 – Design of a Permanent Magnet Biased Homopolar Magnetic Bearing for sCO2 Turbine Applications
Robert Lipham, Southwest Research Institute
Presentation

Compressors

Paper # 44 – Experimental Demonstration of an Advanced CO2 Axial Compressor for CO2-based Power Cycles and Energy Storage Systems
Jeongseek Kang, University of Notre Dame
Presentation

Paper # 37 – Experimental and Numerical Performance Evaluation of a Modified sCO2 Compressor Blade Profile to Reduce Leading Edge Condensation
Erik Fernandez, University of Central Florida
Presentation

Paper # 70 – Design and Optimization of a 3-Stage Axial Supercritical CO2 compressor using CFD
Mark Turner, University of Cincinnati
Presentation

Paper # 20 – A Method to Develop Centrifugal Compressor Performance Maps for Off-Design and Dynamic Simulation Studies of sCO2 Cycles
Colin du Sart, University of Cape Town
Presentation

Heat Exchangers

Paper # 12 – Efficiency and Scale Improvements to Supercritical CO2 Power Block
Richard Huntington, Powerful Heat Transfer Solutions
Presentation

Paper # 73 – Experimental Demonstration of a Coal Fired Primary Heat Exchanger in a sCO2-based Power Cycle
Kyle Sedlacko, Echogen Power Systems
Presentation

Paper # 114 – Technical feasibility analysis and thermo-mechanical modelling of a high-temperature solar receiver and a shell and tube heat exchanger for next-generation CSP plants
David Sanchez, University of Seville

Paper # 4 – Increasing Main Cooler Thermal Performance for sCO2 Power Cycles
Matthew Searle, NETL Support Contractor
Presentation

Paper # 18 – Experimental Characterization of Additively Manufactured Heat Exchangers For Supercritical Carbon Di-Oxide Cycles
Erfan Rasouli, University of California Davis

Paper # 31 – The Experimental and Numerical Investigation of Internal Heat Transfer for Supercritical Carbon Dioxide Cooling in a Staggered Pin Fin Array and Single-Jet Impingement
Emmanuel Gabriel-Ohanu, University of Central Florida
Presentation

Heat Transfer & Properties

Paper # 13 – Visualizing the Turbulent Heat Transfer of Horizontal sCO2 Flows
Marko Draskic, TU Delft

Paper # 51 – Correlational Model for Heat Transfer Coefficient of Solid Particle-to-CO2 Moving Bed Heat Exchangers with Finned-Tubes
Luke Magyar, Echogen Power Systems
Presentation

Paper # 67 – Heat Transfer Experiments of Ribbed, Serpentine Cooling Passages with Supercritical CO2
Michael Marshall, Southwest Research Institute
Presentation

Paper # 27 – Study on the initial position of Taylor vortex for Taylor-Couette-Poiseuille flow formed by supercritical carbon dioxide
Fengxiong Lu, University of Chinese Academy of Sciences
Presentation

Materials

Paper # 63 – High-Temperature Creep and Creep-Fatigue Performance of Stainless Steel 316 Diffusion Bonds
John Shingledecker, EPRI
Presentation

Paper # 89 – High-Temperature Oxidation Behavior of Wrought and Additive Manufactured Alloys in Direct-Fired Supercritical CO2 Power Cycle Environments
Casey Carney, Department of Energy – NETL
Presentation

Paper # 113 – Coated and Uncoated Steel Compatibility in Supercritical CO2 at 450°-650°C
Bruce Pint, ORNL
Presentation

Paper # 2 – Experience in Manufacturing Pipe and Fittings from INCONEL alloy 740H for Demonstration Facilities for sCO2 Service
John deBarbadillo, Special Metals
Presentation

Paper # 57 – Testing of Materials and Coatings at up to 1150°C and 300 bar for use in Oxy-Combustion Turbine
Florent Bocher, Southwest Research Institute
Presentation

Modeling & Control

Paper # 10 – ARC-100 Plant Simulator
Anton Moisseytsev, Argonne National Laboratory

Paper # 59 – Evaluation on the rapidity of sCO2 cycle power up and down events using the STEP dynamic simulation model
Michael McDowell, GTI Energy
Presentation

Paper # 71 – Simple Cycle Test Validation of the STEP Dynamic Simulation Model
Darryl Hino, GTI Energy
Presentation

Paper # 5 – Evaluation of S-CO2 Compressor Inlet Temperature Controllers
Gihyeon Kim, KAIST
Presentation

Paper # 25 – Multi-Model Predictive Control for Enhanced Load Following of a sCO2 Recompression Brayton Cycle
Jacob Albright, Department of Energy – NETL
Presentation

Systems

Paper # 38 – Modeling and Economic Analysis of sCO2 Power Systems Hybridized with a Gas Turbine
Joshua Schmitt, Southwest Research Institute
Presentation

Paper # 32 – Performance and Economic Evaluation of sCO2 Bottoming Cycles for Natural Gas Combined Cycle Plants with Carbon Capture
Eric Liese, Department of Energy, KeyLogic/NETL
Presentation

Paper # 47 – Annual Performance Profiles of CO2-Plume Geothermal (CPG) Systems: Impact of the Ambient Conditions
Christopher Schifflechner, Technical University of Munich
Presentation

Paper # 52 – Simultaneous Design Optimization of binary CO2-mixture-based transcritical power cycles for Concentrated Solar Power Applications
Balkan Mutlu, Teesside University NZIIC

Paper # 78 – Analysis and optimization of the recompression cycle with high-temperature recuperator bypass for concentrating solar power applications
Taylor Brown, Department of Energy – NREL
Presentation

Paper # 85 – Preliminary Results of the EU SolarSCO2OL Demonstration Project: Enabling the Integration of Supercritical CO2 Power Blocks into Hybrid CSP-PV Plants
Salvatore Guccione, KTH Royal Institute of Technology
Presentation

Paper # 108 – Integrated Thermal Energy Storage and Brayton Cycle Equipment Demonstration (Integrated Testbed) Project Design Basis
Masih Jorat, Heliogen Holdings LLC
Presentation

Paper # 1 – Long-term Performance Analysis of Supercritical Cycles in Complex Industrial Environments under Semi-Transient Conditions
Vincent Thielens, University of Mons

Paper # 14 – sCO2 Waste Heat Recovery System Evaluation for Steelmaking Process
Ladislav Vesely, University of Central Florida
Presentation

Paper # 22 – sCO2 Waste Heat Recovery System for Turbofan Engine – System Optimization and Component Design
Claire-Phonie Bury, University of Central Florida
Presentation

Paper # 61 – High temperature CO2 heat pumps for industrial process heat applications
Timothy Held, Echogen Power Systems
Presentation

Paper # 26 – Thermodynamic Evaluation of a Refrigeration Bottoming Cycle on the Efficiency of a Condensing Supercritical Carbon Dioxide Power Cycle
Phalgun Malupillai, TerraPower

Paper # 64 – Technoeconomic Analysis of Low Temperature Reservoir Technologies for sCO2 based Pumped Thermal Energy Storage
Vamshi Avadhanula, Echogen Power Systems
Presentation

Testing

Paper # 8 – Design of a sCO2-based Pumped Thermal Energy Storage (PTES) test rig integrated with industrial waste heat recovery
Simone Maccarini, Università di Genova
Presentation

Paper # 48 – sCO2 Power Cycle Prototype using Thermal Energy Storage
David Stapp, Peregrine Turbine Technologies, LLC
Presentation

Paper # 104 – Design of a High-Temperature Test Facility for an Additive Manufactured Supercritical Carbon Dioxide Turbine
Anthony Grotjan, UW-Madison Solar Energy Laboratory
Presentation

Paper # 103 – Design and Construction of a 1 MWth sCO2 Thermal Loop Heated by Particle-Based Concentrating Solar Power
Hendrik Frederik Laubscher, Sandia National Laboratories
Presentation

Paper # 100 – Investigation of high-pressure CO2-diluted methane/oxygen jet flame stabilization and laser-induced plasma kernel formation
Francesco Di Sabatino, Southwest Research Institute

Paper # 74 – The STEP 10 MWe sCO2 Pilot Installation and Commissioning Status Update
William Follett, GTI Energy
Presentation

Paper # 94 – Commissioning and Simple Cycle Testing of the STEP Main Compressor
Michael Kutin, GTI Energy
Presentation

Paper # 98 – Controls and Data Acquisition Systems Architecture for the DOE STEP 10 MWe Pilot Scale sCO2 Power Plant
Craig Nolen, Southwest Research Institute
Presentation

Turbines

Paper # 6 – S-CO2 radial turbine testing data and performance map for thermodynamic conditions with strong real gas effect
Seungkyu Lee, KAIST
Presentation

Paper # 102 – Blade and Rim Seal Design of a First Stage High Pressure Turbine for a 300 MWe Supercritical CO2 Power Cycle
Logan Tuite, Purdue Experimental Turbine Aerothermal Laboratory
Presentation

Paper # 105 – Blade and Rim Seal Design of a First Stage High Pressure Turbine for a 300 MWe Supercritical CO2 Power Cycle
Jeff Moore, Southwest Research Institute
Presentation

Posters

Poster # 7 – Impact of the Thermodynamic Property Method Choice on the Thermodynamic Performance, Preliminary Component Design and Process Optimization of the NET Power Cycle
Ivan Velazquez, University of Valladolid

Poster # 11 – Testing of Supercritical CO2 Centrifugal Compressors for 1MWe Power Cycle
Yuming Zhu, Institute of Engineering Thermophysics, Chinese Academy of Sciences

Poster # 19 – Additively-Manufactured High-Flux Micro-Pin Array Receiver Panels for High-Pressure Fluids
Vinod Narayanan, University of California Davis

Poster # 28 – Effects of Near-critical Inlet Condition on the Performance of Supercritical CO2 Compressor
Wenlin Xie, Institute of Engineering Thermophysics, Chinese Academy of Sciences
Paper

Poster # 29 – Static and Transient Characteristics of a Microchannel Two-phase Looped Thermosyphon Cooler for the sCO2 Brayton Cycle
Liqi Yu, Institute of Engineering Thermophysics, Chinese Academy of Sciences
Paper

Poster # 30 – Towards the design of a supercritical combustion chamber for combusting H2 in sCO2 and sXe
Sylwia Oles, University of Twente
Paper

Poster # 41 – Materials compatibility in supercritical CO2 environments applicable to power generation systems
Bonnie Antoun, Sandia National Laboratories

Poster # 42 – Comparative analysis of supercritical CO2 cycles
Badyda Krzysztof, Sandia National Laboratories
Paper

Poster # 49 – Pressure Actuated Shaft Seal Development for sCO2 Application
Clayton Grondahl, CMG Tech LLC
Paper

Poster # 60 – Steady State Modeling for the 10 MWe sCO2 Test Facility Program
Wade Mao, GTI Energy
Paper

Poster # 66 – Methane and Natural Gas Combustion and Ignition Measurements for SCO2 Allam Cycles
Cory Kinney, University of Central Florida

Poster # 72 – Thermodynamic Analysis of sCO2 Energy Storage System
Cory Kinney, University of Central Florida

Poster # 76 – Installation and Commissioning of the Gas Fueled Heater for the STEP sCO2 Demonstration Pilot Plant
Patrick Bishop, GTI Energy

Poster # 79 – Micro-PIV measurements and visualization of the flow of CO2 near critical conditions inside the microchannel
Ritesh Ghorpade, University of Central Florida

Poster # 83 – Evaluation of Materials and Coatings for Use in High Temperature CO2 Environments
Jianliang Lin, Southwest Research Institute

Poster # 84 – Theoretical study on windage loss characteristics of supercritical carbon dioxide in a rotating axis cavity
Chaohong Guo, Institute of Engineering Thermophysics, Chinese Academy of Sciences
Paper

Poster # 95 – Thermomechanical Analysis of Printed Circuit Heat Exchangers for Optimization of Supercritical CO2-based Power Cycles in Concentrated Solar Power
Christopher Hyland, University of Dayton
Paper

Poster # 99 – Transient oscillation phenomena during cool, pressurized start-up of sCO2 compressor
Craig Nolen, Southwest Research Institute

Poster # 109 – Design of SCO2 System Test Rig
Hu Yifeng, Shanghai Turbine Works Company

Poster # 111 – Thermodynamic Analysis of Five Allam sCO2 Power Cycle Configurations
Duoli Chen, University of Pennsylvania
Paper

Poster # 115 – Development of ZEUS – Zero – Emission Unmanned power Station
Kjartan Pedersen, Aker Solutions AS
Paper

Poster # 116 – Optimization of CO2 injection, used as a cooling agent, into a prototype high-pressure combustor for H2 oxy-combustion in sCO2
Jakub Mularski, Wrocław University of Science and Technology
Paper