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RISOptimization of a High Pressure Turbine Blade and Sector-Based Annular Rig Design for Supercritical CO2 Power Cycle Representative Testing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: As part of the ongoing research into the design of hardware for zero emission cycles, a first-stage high-pressure turbine (HPT) blade is optimized for a 300 MWe supercritical CO2 (sCO2) power cycle using the surrogate-assisted ...
Design and Experimental Assessment of Bladeless Turbines for Axial Inlet Supersonic Flows
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Supersonic inlet flow is usually considered to be detrimental to the performance of turbine systems. A new class of bladeless turbines was developed, which allows for power extraction from supersonic axial inflows without ...
Aerothermal Optimization of Bladeless Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The harnessing of mechanical power from supersonic flows is constrained by physical limitations and substantial aerodynamic losses. Bladeless axial turbines are a viable alternative to extract power in such harsh conditions ...
Quantitative Definition of Spray Edge With Extinction Diagnostics and Evaluation of Attenuation Coefficient for Liquid Jets in Supersonic Crossflow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A quantifiable, reproducible, and repeatable definition of the three-dimensional spray width and depth for a canonical jet in an open-source supersonic crossflow is presented. An expanding Mach 2 dry-air crossflow is ...
Large-Eddy Simulation Study of Flow and Combustion Dynamics in a Full-Scale Hydrogen–Air Rotating Detonation Combustor-Stator Integrated System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the present work, a first-of-its-kind three-dimensional (3D) large-eddy simulation (LES) study is conducted to numerically investigate the combustion dynamics as well as aero-thermal phenomena in a full-scale nonpremixed ...
Numerical Assessment of an Aerodynamic Probe to Enable Short Focal Length Laser Diagnostics in High Temperature Supersonic Flows Based on Flow Disturbance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This article evaluates the use of an actively cooled aerodynamic probe body with integrated optics to perform short focal length laser diagnostics within high-temperature, high-supersonic flows. A novel probe with a “ship's ...
Aerothermal Optimization of Fully Cooled Turbine Blade Tips
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Optimal turbine blade tip designs have the potential to enhance aerodynamic performance while reducing the thermal loads on one of the most vulnerable parts of the gas turbine. This paper describes a novel strategy to ...
Design, Optimization, and Analysis of Supersonic Radial Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: New compact engine architectures such as pressure gain combustion require ad hoc turbomachinery to ensure an adequate range of operation with high performance. A critical factor for supersonic turbines is to ensure the ...
Development of a Lifetime Pressure Sensitive Paint Procedure for High-Pressure Vane Testing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Optical measurements based on fast response pressure sensitive paint (PSP) provide enhanced spatial resolution of the pressure field. This paper presents laser lifetime PSP at 20 kHz, with precise calibrations, and results ...