.... Keywords: Pumped thermal energy storage, Carnot batteries, sCO2, carbon dioxide, energy storage, long duration energy storage systems. NOMENCLATURE Abs CAPEX CAES CC CO2 CO2 CHP COP CSP Absolute Capital Expenditure Compressed Air Energy Storage Charging Cycle Carbon Dioxide thermal Cycle Carbon dioxide...

... into existing compressor models since this design change is agnostic to the specifics of the design paradigm. sCO2 compressors phase change power cycles design study efficiency improvements Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference and Exposition GT2024 June 24-28...

... will be detailed with FE simulation evaluating stress and temperature distribution in specimens and key insights will be given regarding the design of a proper test matrix and the essential theoretical framework for the interpretation of the results of a testing campaign. Keywords: Expanders, Steam turbine, sCO2...

... temperature variation on the evolution of the refrigerant level and its performance. All the above findings contribute to providing reliable and efficient heating and/or cooling services in a wide range of process conditions. sCO2 heat pump steady-state simulation dynamic simulation heat exchanger...

... for shock waves occurring in two-phase flows and supercritical single-phase flows. sCO2 two-phase flow shock waves supersonic Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference and Exposition GT2024 June 24-28, 2024, London, United Kingdom GT2024-127438 NUMERICAL...

... architectures and fluids have been compared given the specific geological conditions in the state. The cycle architectures include a supercritical carbon dioxide (sCO2) thermosiphon, a natural-convection-driven system utilizing the temperature gradient between the geological reservoir and the surface level...

... AND EXPERIMENTAL COMPARISON OF A SINGLE STAGE AXIAL SCO2 COMPRESSOR Saugat Ghimire1 Justin Holder1, Matthew Ha1, Mark Turner1, Jeongseek Kang2, Scott C. Morris2, Kyle Sedlacko3, Tim Held3 1University of Cincinnati, Cincinnati, OH 2University of Notre Dame, South Bend, IN 3Echogen Power Systems, Akron, OH ABSTRACT...

... efficiency improvements experimental optical diagnostics particle image velocimetry PIV Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference and Exposition GT2024 June 24-28, 2024, London, United Kingdom GT2024-129119 BLADE DESIGNS FOR IMPROVED MULTI-PHASE PERFORMANCE IN SCO2...

... regimes. The inlet parameters for the supercritical carbon dioxide (sCO2) side are derived from the results of a modified simple Brayton cycle analysis at the specified steady state operating condition. Concurrently, the demands of the ammonia side at this condition dictate the corresponding boundary...

... to study the mixing loss characteristic of sCO2 near the critical point and shed light on the non-ideal fluid effect on the mixing losses. As a simplified model of the mixing process in the trailing edge or tip leakage flow in turbomachines, a case of mixing in a constant area adiabatic duct involving two...

..., United Kingdom GT2024-129457 COMMISSIONING AND OPERATION OF AN INVENTORY MANAGEMENT SYSTEM Joshua Warren Southwest Research Institute San Antonio, TX George Khawly Southwest Research Institute San Antonio, TX ABSTRACT The DOE STEP 10 MWe Pilot Scale sCO2 Power Plant encompasses several pieces...

... for the airplane and still provide significant heat to the NH 3 line or bypass flow. waste heat sCO 2 exhaust gas NH 3 decarbonization Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference and Exposition GT2024 June 24-28, 2024, London, United Kingdom GT2024-129456 SCO2 CYCLE...

... Abstract Supercritical Carbon dioxide (sCO2) power cycles are rapidly developing and gaining popularity in waste heat recovery systems, as primary power cycles for a variety of heat sources such as nuclear, or as a stand-alone power cycle where fossil fuels are combusted. Akin to conventional...

... will be presented. SCO2 oxy-fuel turbine direct-fired Allam-Fetvedt cycle Proceedings of ASME Turbo Expo 2023 Turbomachinery Technical Conference and Exposition GT2023 June 26-30, 2023, Boston, Massachusetts, USA GT2023-103328 DEVELOPMENT OF A 300 MWE UTILITY SCALE OXY-FUEL SCO2 TURBINE J. Jeffrey...

..., Teng Cao , Ricardo Martinez-Botas Department of Mechanical Engineering, Imperial College London, United Kingdom ABSTRACT This paper aims to provide an understanding of sCO2 inviscid adiabatic normal shock behaviour near the critical point and to develop an explicit tool for faster prediction...

...Proceedings of ASME Turbo Expo 2023 Turbomachinery Technical Conference and Exposition GT2023 June 26-30, 2023, Boston, Massachusetts, USA GT2023-103166 IMPACT OF SCO2 WASTE HEAT RECOVERY SYSTEM AIR COOLER INTEGRATION ON AIRCRAFT ENGINE THRUST PERFORMANCE Claire-Phonie Bury University of Central...

... and calls for further technical studies in the field. sCO 2 thermodynamics off-shore footprint Proceedings of ASME Turbo Expo 2023 Turbomachinery Technical Conference and Exposition GT2023 June 26-30, 2023, Boston, Massachusetts, USA GT2023-102913 SCO2 BOTTOMING CYCLE FOR OFF-SHORE APPLICATIONS...

.... The experimental data gathered from the test campaign was employed for the successful validation of a dynamic model, that allows for further heat pump transient operation prediction in the future. Keywords: Heat Pump ; sCO2 ; District Heating ; Sector Coupling ; Frequency Reserve NOMENCLATURE AMB Active Magnetic...

... of the art of individual subsystems. A complete analysis and optimization are performed for the sCO2 WHR power cycle as well as CSP and TES. The results show potential benefits and disadvantages of the proposed system. Keywords: CSP, thermal storage, particles, sCO2, waste heat recovery, energy-intensive...

..., such as steam, ORC or supercritical CO 2 (sCO2) power cycles. The development of thermo-mechanical storages to be installed at industrial level, can contribute in this direction through the use of traditional technologies (rotating machinery) employed in power plants as well as in Waste-heat-to-power (WH2P...