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RISDesign, Multi-Point Optimization, and Analysis of Diffusive Stator Vanes to Enable Turbine Integration Into Rotating Detonation Engines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Pressure gain combustion is considered a possible path toward improved thermal cycle efficiency and reduced carbon emissions. However, ad hoc turbine designs are required to maximize the thermodynamic potential; the new ...
Optimization 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 ...
Robust Tip Gap Measurements: A Universal In-Situ Dynamic Calibration and Demonstration in a Two-Stage High-Speed Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Tip clearance monitoring is essential for the active health monitoring of turbomachinery and their development toward more efficient systems. Proper sensor calibration is paramount to this purpose, frequently being a ...
Enhancing Total Temperature Measurement Accuracy: Calibration Procedures and Novel Two-Wire Probes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Total temperature measurement with thermocouple probes suffers from errors due to heat transfer effects. Two dominant sources of errors are convection and conduction between the thermocouple, the support, and the flow. ...
Analysis of the Heat Transfer Driving Parameters in Tight Rotor Blade Tip Clearances
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Turbine rotor tips and casings are vulnerable to mechanical failures due to the extreme thermal loads they undergo during engine service. In addition to the heat flux variations during the engine transient operation, ...
Prediction of the Turbine Tip Convective Heat Flux Using Discrete Green's Functions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The heat fluxes across the turbine tip gap are characterized by large unsteady pressure gradients and shear from the viscous effects. The classical Newton heat convection equation, based on the turbine inlet total temperature, ...
Inverse Conduction Heat Transfer and Kriging Interpolation Applied to Temperature Sensor Location in Microchips
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Large thermal gradients represent major operational hazards in microprocessors; hence, there is a critical need to monitor possible hot spots both accurately and in real time. Thermal monitoring in microprocessors is ...
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 ...
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 ...
Experimental Demonstration of Inverse Heat Transfer Methodologies for Turbine Applications
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Gas turbines operate at extreme temperatures and pressures, constraining the use of both optical measurement techniques as well as probes. A strategy to overcome this challenge consists of instrumenting the external part ...