Supercritical CO₂ Power Cycles Symposium

Proceedings of the 7^th International sCO₂ Power Cycles Symposium

The 7^th International sCO₂ Power Cycles Symposium was held February 21–24, 2022, in San Antonio, Texas. The following papers and/or presentations were presented at the symposium. They are grouped by session.

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Pre-Conference Tutorial Sessions

sCO₂ Power Cycles Fundamentals Tutorial
Jason Wilkes, Southwest Research Institute

sCO₂ Cycles Tutorial
Aaron McClung, Southwest Research Institute
Doug Hofer, Heliogen

sCO₂ Oxy-Combustion Tutorial
Steve White, Southwest Research Institute

sCO₂ Turbomachinery Tutorial
Jeff Moore, Southwest Research Institute

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

Heat Exchangers for Supercritical CO₂ Power Cycle Applications Tutorial
Michael Marshall, Southwest Research Institute
Marc Portnoff, Thar Energy, LLC

Keynote Presentation

Jason Littleton, Power GE Research

Adam Hamilton, Southwest Research Institute

Don Stevenson, Gas Technology Institute

Jeremy Fetvedt, 8 Rivers

Tim Held, Echogen Power Systems

Jaap van Kampen, Siemens Energy

Doug Hofer, Heliogen

John (Cam) Gulen, Bechtel Infrastructure & Power, Inc.

Karl Wygant, Hanwha Power Systems

Brian Robinson, Office of Nuclear Energy

Jeff Moore, Southwest Research Institute

Panel Sessions

Panel Session I: Industry Panel – Status of Technology Maturation

• John Marion – Gas Technology Institute
• Marc Portnoff – Thar Energy
• Rob Pelton – Hanwha Power Systems
• Jeff Moore – Southwest Research Institute
• Klaus Brun – Elliott Group
• Albannie Cagnac – EdF

Panel Session II: Industry Panel – Steps to Commercialization

• Jason Mortzheim – GE
• Thomas Soulas – Siemens Energy
• Brock Forrest – NETPower
• Tushar Patel – Atlas Copco
• Beomjoo Kim – KEPCO

Panel Session III: Industry Panel – High-level DOE Panel Session

• Bhima Sastri – Office of Fossil Energy and Carbon Management
• Avi Shultz – Solar Energy Technologies Office
• Brian Robinson – Office of Nuclear Energy
• Peter Debock – ARPA-E

Panel Session IV: Industry Panel – University R&D Panel Session

• David Sanchez, Univ. of Sevilla, Spain
• Jeong Ik Lee, KAIST, S. Korea
• Takashi Furusawa, Tohoku University, Japan
• Subith Vasu, Univ. of Central Florida, USA
• Jay Kapat, Univ. of Central Florida, USA

Panel Session V: Industry Panel – National Laboratories R&D Panel Session

• Bruce Pint, Oak Ridge National Laboratory
• Logan Rapp, Sandia National Laboratories
• Sungho Chang, KEPCO Research Institute
• Ty Neises, National Renewable Energy Laboratory
• Peter Strakey, National Energy Technology Laboratory

Components

Paper # 198 – Silicon Carbide Fiber Composite Piping for High Temperature sCO₂ Brayton Cycle
Jacob Neiderer, Ceramic Tubular Products, LLC
Presentation

Paper # 46 – Power Cycle Piping Design Considerations for Very Low Nozzle Load Allowables on an Integrally-Geared sCO₂ Compressor/Expander
Jason Wilkes, Southwest Research Institute
Presentation

Paper # 169 – Start-up and Emergency Shutdown Modeling for a Coal-fired 10MWe sCO₂ Power Plant
Shawn Engle, Echogen Power Systems
Presentation

Paper # 60 – Magnetic Journal Bearing Instability Under Supercritical CO₂ Conditions
Dokyu Kim, KAIST

Paper # 47 – Analysis and Testing of Dry Gas Seals for Turbomachinery in sCO₂ Applications Benjamin Hellmig, EagleBurgmann
Presentation

Paper # 187 – Dry Gas Seals design for Centrifugal Compressor in Supercritical CO₂ Application
Rafael Kassimi, Flowserve Manufacturing HUB Dortmund
Presentation

Paper # 190 – Component Testing of a High Temperature Dry Gas Seal
Jordan Nielson, Southwest Research Institute
Presentation

Fundamentals

Paper # 14 – New Reference Equation of State for Carbon Dioxide
Allan Harvey, NIST

Paper # 125 – Comparison of Convective Heat Transfer Characteristics of Supercritical Fluid
for Circular-Pipes in Horizontal Flow
Debjyoti Banerjee, Texas A&M University (TAMU)
Presentation

Paper # 1 – The Effect of Impurities in rich CO₂ Working Fluid on the Power Output of a 10 MW sCO₂ Gas Turbine Power Plant
Ibrahim Ali, Carleton University
Presentation

Paper # 37 – Supercritical CO₂ with Water Contamination: Mixture Thermodynamic Properties at Compressor Conditions
Ashvin Hosangadi, CRAFT Tech
Presentation

Paper # 167 – Impact of Selective Admixture of Additives to Carbon Dioxide on the size of sCO₂ Power Cycle Key Components
Sebastian Rath, TU Dresden, Institute of Power Engineering
Presentation

Heat Exchangers

Paper # 3 – Measurement of Convective Heat Transfer Coefficients with Supercritical CO₂ in Novel Additively Manufactured Helically
Patterned Pin Fin Tubes Using the Wilson Plot Technique Matthew Searle, US Department of Energy, NETL
Presentation

Paper # 175 – Design, Fabrication and Testing of Novel Compact Recuperators for the Supercritical Carbon Dioxide Brayton Power Cycle
Marc Portnoff, Thar Energy, LLC
Presentation

Paper # 181 – Innovative Flue Gas-to- sCO₂ Primary Heat Exchanger Design for Cement Plant Waste Heat Recovery
Ladislav Vesely, University of Central Florida, CATER
Presentation

Materials

Paper # 39 – Exploring Materials Options for Ultra-High Temperature sCO₂ Applications
Bruce Pint, Oak Ridge National Laboratory
Presentation

Paper # 172 – Mechanical Degradation of Ferritic/Martensitic and Austenitic steels in CO₂ Environment
Kyle Rozman, US Department of Energy, NETL
Presentation

Paper # 173 – Identifying Cost-Effective Steels for Direct-Fired sCO₂ Power Cycles
Richard Oleksak, US Department of Energy, NETL
Presentation

Paper # 144 – Effect of Processing on the Microstructure and Creep Performance of Inconel Alloy 740H Sheet
John Shingledecker, Electric Power Research Institute
Presentation

Paper # 165 – Recent Developments in Manufacturing and Fabrication of Alloy 740H Components for sCO2 Applications
John deBarbadillo, Special Metals

Paper # 170 – Investigation of Weldment Cracking During Fabrication of a 700°C Fired sCO₂ Heater
John Shingledecker, Electric Power Research Institute
Presentation

Paper # 38 – Defining Temperature Limitations for Steels in sCO₂ Applications
Bruce Pint, Oak Ridge National Laboratory
Presentation

Paper # 116 – The Effect of Elevated Temperatures and Pressure on Five Metallic Materials in a Quasi-Static Supercritical-CO₂ Environment
Margarita Ilinich, Natural Resources Canada
Presentation

Paper # 149 – Compatibility of Polymers in Super-Critical Carbon Dioxide for Power Generation Systems Under Low Temperatures and Pressure Conditions
Nalini Menon, Sandia National Laboratories
Presentation

Modeling & Control

Paper # 98 – Dynamic Modeling for the 10 MWe sCO₂ Test Facility Program
Douglas Heim, Gas Technology Institute
Presentation

Paper # 121 – Integrated Transient Modeling of Gas Turbine and sCO₂ Power Cycle for Exhaust Heat Recovery Application
Vamshi Avadhanula, Echogen Power Systems (DE), Inc.
Presentation

Paper # 147 – Supercritical CO₂ Controls Strategies for a Fixed-Speed Recompression Closed Brayton Cycle
January Smith, Southwest Research Institute
Presentation

Paper # 104 – Inventory Management Operational Strategies for a 10 MW sCO₂ Power Block
January Smith, Southwest Research Institute
Presentation

Paper # 153 – Dynamic Modeling and Simulation of a Large Scale Direct-Fired Supercritical CO₂ Power Cycle for Off-Design Operating Conditions
Anderson Chinen, US Department of Energy, NETL

Oxy-Combustion

Paper # 48 – Developing Non-Intrusive Diagnostics for the Characterization of Direct-Fired sCO₂ Flows
Eugene Hoffman, The University of Texas at San Antonio (UTSA)
Presentation

Paper # 61 – Ignition and Flame Propagation Measurements of Natural Gas/Oxidizer Mixtures in sCO₂
Subith Vasu, University of Central Florida
Presentation

Paper # 123 – Combustor for Direct-Fired Supercritical CO₂ Cycle
Mark Winquist, Gas Technology Institute
Presentation

Paper # 62 – Effect of Impurities in the Re-cycled CO₂ Stream on a sCO₂ Combustor
Subith Vasu, University of Central Florida
Presentation

Paper # 115 – Study of the effect of CO addition in a Direct Fired Oxy-Fuel Combustor for sCO₂ Power Cycles using Direct Detailed Chemistry and Adaptive Mesh Refinement
Gaurav Kumar, Convergent Science, Inc.
Presentation

Paper # 171 – Development of a Laser Igniter for Direct Fired sCO₂ Combustors
Sreenath Gupta, Argonne National Laboratory

Power Plants & Applications

Paper # 162 – Large Scale TriGeneration Energy Storage System for Heat, Cold and Electricity based on Transcritical CO₂ Cycles
Luis Sanz Garcia, MAN Energy Solutions Switzerland AG
Presentation

Paper # 191 – Potential and Challenges of the Utilization of CO₂-Mixtures in Supercritical Power Cycles of Concentrated Solar Power Plants
David Sánchez, University of Seville

Paper # 205 – First Year of the EU SolarSCO₂OL Demonstration Project – Enabling Hybrid Supercritical CO₂ CSP Plants integrated with PV
Rafael Guedez, KTH Royal Institute of Technology

Paper # 42 – Investigation of sCO₂ Cycle Configurations for Ultra Low Temperature Waste Heat Recovery
Veronika Wolf, University of Luxemburg
Presentation

Paper # 88 – Low-Cost, Low-Grade Waste Heat Recovery Using sCO₂ Natural Convection
Kelsi Katcher, Southwest Research Institute
Presentation

Paper # 90 – A Conceptual Evaluation of a kW-Scale sCO₂ Power Cycle for Waste Heat Recovery on a Heavy-Duty Diesel Engine Truck
Natalie Smith, Southwest Research Institute

Paper # 99 – Multi-Objective Cycle Optimization of an Integrally Geared Waste Heat Recovery Unit for a Combined Cycle Power System
Michael Marshall, Southwest Research Institute
Presentation

Paper # 113 – Cooling System Cost and Performance Models to Minimize Cost of Electricity of a Direct sCO₂ Power Plants
Sandeep Pidaparti, US Department of Energy, NETL
Presentation

Paper # 112 – A Performance and Economic Comparison of Partial Cooling and Recompression sCO₂ Cycles for Coal-Fueled Power Generation
Sandeep Pidaparti, US Department of Energy, NETL
Presentation

Paper # 189 – Techno-Economic Analysis of sCO₂ Geothermal Thermosiphon Power Plant
Jordan Nielson, Southwest Research Institute
Presentation

Paper # 9 – Carbon Dioxide Capture and Sequestration by Integrating Pressure Swing Adsorption with an Open Cycle Supercritical CO₂ Brayton Power Generation System
Mark Anderson, Concepts NREC LLC
Presentation

Paper # 120 – sCO₂ Primary Power Large-Scale Pilot Plant FEED Summary
Jason Mallinak, Echogen Power Systems
Presentation

Paper # 188 – Thermodynamic Assessment and Optimisation of Supercritical and Transcritical Power Cycles Operating on CO₂ Mixtures by means of Artificial Neural Networks
Francesco Crespi, University of Seville

Paper # 124 – Thermoeconomic Analysis of sCO₂ Cycle Options for Combined Cycles
Mathias Penkuhn, Technische Universität Berlin

Testing

Paper # 36 – Building a 10 MWe sCO₂ Power Plant: Design Considerations for the DOE STEP Pilot Plant Test Facility
Craig Nolen, Southwest Research Institute
Presentation

Paper # 95 – Prediction Methods of Settle Out Conditions and Design in sCO₂ Power Cycles
Jonathan Wade, Southwest Research Institute
Presentation

Paper # 13 – A Design of a 2MW Rated sCO₂ Compressor Test Rig
Mark Anderson, Shanghai Advanced Research Institute (SARI)
Presentation

Paper # 15 – Lessons from Testing the sCO₂-Hero Turbo-Compressor-System
Sebastian Schuster, University of Duisburg-Essen
Presentation

Paper # 32 – Experimental Testing of a 1MW sCO₂ Turbocompressor
Logan Rapp, Sandia National Laboratories
Presentation

Turbomachinery

Paper # 126 – Modeling the Variations in an sCO₂ Compressor's Map Characteristics Operating Near the Critical Point
Robert Pelton, Hanwha Power Systems Americas
Presentation

Paper # 177 – Experimental and Numerical Performance Survey of a MW-Scale Supercritical CO₂ Compressor Operating in Near-Critical Conditions
Lorenzo Toni, Baker Hughes

Paper # 161 – Radial Compressor Design and Off-Design for Transcritical CO2 Operating Conditions
Selcuk Can Uysal, US Department of Energy, NETL
Presentation

Paper # 164 – Mechanical and Rotordynamic Test Results of a Supercritical CO₂ Compressor Operating Near the Critical Point
Jeff Moore, Southwest Research Institute
Presentation

Paper # 100 – Aeromechanical Design of a 10 MWe sCO₂ Turbine
Stefan Cich, Southwest Research Institute
Presentation

Paper # 138 – CFD Evaluation of Shroud Gap Performance Effects on a Supercritical CO₂ Radial Inflow Turbine
David Stevens, Peregrine Turbine Technologies, LLC
Presentation

Paper # 59 – An Improved Off-Design Prediction Model Based on Similarity Analysis for Turbomachinery Under s-CO2 Condition
Yongju Jeong, KAIST
Presentation

Paper # 122 – Next Generation Additive Manufacturing of Shrouded Turbine Wheel
Andrew Carter, Stratasys Direct Manufacturing
Presentation

Posters

Poster # 57 – Effect of Impurities in The Re-Cycled CO₂ Stream on a Supercritical CO₂ Combustor
Raghu veera manikantachari Kancherla, University of Central Florida
Paper

Poster # 63 – Autoignition Delay Measurements in Syngas and Natural Gas at sCO₂ conditions
Subith Vasu, University of Central Florida
Paper

Poster # 64 – First Demonstration of PIV Measurements in sCO₂ Flows Inside Microchannel Near the Critical Point
Subith Vasu, University of Central Florida
Paper

Poster # 82 – Investigation of Recompression Supercritical CO₂ cycle
Piotr Lis, Warsaw University of Technology Institute of Heat Engineering
Paper

Poster # 103 – Project Update: 10 MW sCO₂ Compander design and Testing
Jason Wilkes, Southwest Research Institute

Poster # 110 – sCO₂ Pin-Fin Channel Flow Heat Transfer Simulation Using Benchmark in Air
Neil Sullivan, Embry-Riddle Aeronautical University
Paper

Poster # 125 – Comparison of Convective Heat Transfer Characteristics of Supercritical Fluid for Circular-Pipes in Horizontal Flow
Debjyoti Banerjee, Texas A&M University (TAMU)

Poster # 140 – Development and Creation of a supercritical CO₂ (sCO₂) Energy Generation System
Eugene Hoffman, University of Texas at San Antonio

Poster # 154 – Machinery Health Monitoring and Component Testing using a Magnetic Bearing with a Supercritical CO₂ Turbomachine
Mark Anderson, Concepts NREC
Paper

Poster # 156 – STEP
Aaron McClung, Southwest Research Institute

Poster # 166 – Optimization and Preliminary Design of a High-Temperature, Low Pressure-Ratio sCO₂-Compressor for a Wide Operating Range
Sebastian Rath, TU Dresden, Institute of Power Engineering
Paper

Poster # 174 – Benefits of Advanced Additive Manufacturing in Turbomachinery Design
Nick Oyer, Velo3D

Poster # 179 – Simulation of the TerraPower Direct-Cycle sCO₂ Pascal Reactor with the ANL Plant Dynamics Code
Anton Moisseytsev, Argonne National Laboratory
Paper

Poster # 182 – Hydraulic Development Length and Boundary Condition Effects on Local sCO₂ Heat Transfer Coefficients
Yang Chao, Embry–Riddle Aeronautical University
Paper

Poster # 185 – A Methodology to Identify the Most Promising Concentrating Solar Power Layouts to be Integrated with Supercritical CO₂ Power Cycles
Salvatore Guccione, KTH Royal Institute of Technology
Paper

Poster # 186 – Test Rig Design for Experimental Characterization of Condensation in sCO₂ Compressors
Hicham Chibli, University of London
Paper

Poster # 192 – sCO₂ Power Cycle Development Near Net Shape Hot Isostatic Press (NNS HIP) Manufacturing Modality for Cost Reductions
Jason Mortzheim, GE Research

Poster # 193 – Sensitivity Maps of Thermodynamic Properties of Carbon Dioxide Near the Critical Point for Optimization in Centrifugal Compressor Design
Pedro Domínguez, Instituto de Ingeniería UNAM
Paper

Poster # 199 – Supercritical CO₂ Heat Transfer away from pseudocritical temperature: Influence of buoyancy
Akshay Khadse, University of Central Florida
Paper

Poster # 200 – Thermal and Hydraulic Characterization of supercritical CO₂ flow in Additively Manufactured Pin-fin Heat Sinks
Ines-Noelly Takua Tano, University of California Davis
Paper

Poster # 202 – Recuperative Heat Exchanger Design and Implementation in sCO₂ Heat Transfer Loop Emmanuel Gabriel-Ohanu, University of Central Florida

Poster # 203 – Novel Direct Fired sCO₂ Power Cycle with Integration of H₂ Combustor
Ladislav Vesely, University of Central Florida/Cater

Poster # 206 – STEP HTR Heat Exchanger
Renaud Le Pierres, Heatric

Poster # 207 – CO₂OLHEAT Industrial waste heat recovery and its conversion to electricity via supercritical CO₂ cycle
Renaud Le Pierres, Heatric

Poster # 210 – Experiments on Methane Injection Characteristics in Supercritical CO₂ Environment
Subith Vasu, University of Central Florida
Paper