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RISErratum: “Film Cooling Extraction Effects on the Aero-Thermal Characteristics of Rib Roughened Cooling Channel Flow” [ASME J. Turbomach., 135(2), p. 021016; DOI: 10.1115/1.4007501]
Publisher: The American Society of Mechanical Engineers (ASME)
Micro-Turbojet to Turbofan Conversion Via Continuously Variable Transmission: Thermodynamic Performance Study
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, the viability, performance, and characteristics of a turbojet-to-turbofan conversion through the use of a continuously variable transmission (CVT) are investigated. By an in-house thermodynamic simulation ...
Local Heat Transfer Dependency on Thermal Boundary Condition in Ribbed Cooling Channel Geometries
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present study is geared toward quantifying the effects of imposed thermal boundary condition in cooling channel applications. In this regard, tests are conducted in a generic passage, with evenly distributed rib type ...
In-Situ Measurement of Thermal Barrier Coating Properties Via Induction Phase Radiometry: Methodology Development
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This research introduces a new method for accurately measuring the thermal resistance of thermal barrier coatings (TBCs), as typically used in gas turbine engines. The proposed method involves periodic internal heat ...
New Insights From Conceptual Design of an Additive Manufactured 300 W Microgas Turbine Toward Unmanned Aerial Vehicle Applications
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Owing to the high energy density of hydrocarbon fuels, ultramicrogas turbines (UMGT) with power outputs below 1 kW have clear potential as battery replacement in drones. However, previous works on gas turbines of this scale ...
Multidisciplinary Design Methodology for Micro-Gas-Turbines—Part I: Reduced Order Component Design and Modeling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Ultramicrogas turbines (UMGTs) for electric power generation up to 1 kW are a viable replacement technology for lithium batteries in drones due to their high energy density. Previous research has shown that small-scale ...
Multidisciplinary Design Methodology for Micro-Gas-Turbines—Part II: System Analysis and Optimization
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Owing to their high specific energy capabilities, ultramicrogas turbines (UMGT) are a high-potential technology to provide portable electric power supply for applications with demand of less than 1 kW. UMGT conceptual ...
High-Speed Recessed Conical Hybrid Bearings With Additive Manufacturing–Driven Large Gap Clearances for Integrated Bearing–Rotor Architectures of Gas Turbines: Navier–Stokes Analysis and Symbolic–Regression Correlations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. Hydrostatic recessed conical bearings operating at high rotational speeds, commonly referred to as hybrid bearings, exhibit several advantages, including structural simplicity, reduced maintenance requirements, ...
Experimental Validation of Reynolds–Prandtl Scaling for Confined Gas Jet Impingement Heat Transfer
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. The influence of gas transport properties on jet impingement heat transfer is commonly represented through a power law Prandtl number dependence, Nu∝Prn, but experimental evidence for gas-to-gas sensitivity in ...
Film Cooling Extraction Effects on the Aero Thermal Characteristics of Rib Roughened Cooling Channel Flow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present study is geared towards quantifying the effects of film cooling holes on turbine internal cooling passages. In this regard, tests are conducted in a generic stationary model, with evenly distributed ribtype ...