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RISPredicting Gas Leakage in the Rotary Engine—Part II: Side Seals and Summary
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The Wankel rotary engine offers a greater power density than piston engines, but higher fuel consumption and hydrocarbon emissions, in large part due to poor gas sealing. This paper presents a model for the deformable ...
Predicting Gas Leakage in the Rotary Engine—Part I: Apex and Corner Seals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The Wankel rotary engine offers a greater power density than piston engines, but higher fuel consumption and higher hydrocarbon emissions, in large part due to poor gas sealing. This paper presents a modeling approach to ...
Micro-Mixing Combustion for Highly Recuperated Gas Turbines: Effects of Inlet Temperature and Fuel Composition on Combustion Stability and NOx Emissions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The micromix combustion concept offers an elegant compromise between premixed and nonpremixed combustion. By mixing the fuel and air at the smallest scale possible, one can achieve NOx emissions comparable to premixed ...
Improvement of Silicon Nitride Turbine Blade Impact Resistance Under Uniaxial Compression Loading
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The inside-out ceramic turbine (ICT), a novel microturbine rotor architecture, uses monolithic ceramic turbine blades held in compression by a rotating structural shroud instead of traditional superalloy turbine blades in ...
Proof-of-Concept of a Thermal Barrier Coated Titanium Cooling Layer for an Inside-Out Ceramic Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Increasing turbine inlet temperature (TIT) of recuperated gas turbines would lead to simultaneously high efficiency and power density, making them prime candidates for low-emission aeronautics applications, such as ...
Cooling Performance of Additively Manufactured Pin Fins in Stacked Microchannels for the Inside-Out Ceramic Turbine Shroud-Cooling Ring
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The inside-out ceramic turbine (ICT), a novel microturbine rotor architecture, has an air-cooled ring, which keeps its composite rotating structural shroud within operating temperature. The cooling ring must achieve a ...
Design and Experimental Validation of a Supersonic Concentric Micro Gas Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the design and experimental results of a new micro gas turbine architecture exploiting counterflow within a single supersonic rotor. This new architecture, called the supersonic rimrotor gas turbine ...
Rotordynamics of a Highly Flexible Hub for Inside-Out Ceramic Turbine Application: Finite Element Modeling and Experimental Validation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The inside-out ceramic turbine (ICT) is a promising concept to increase turbine inlet temperatures in microturbines by integrating individual monolithic ceramic. This architecture uses a carbon–polymer composite rim to ...
System-Level Performance of Microturbines With an Inside-Out Ceramic Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Ceramic turbines can reduce fuel consumption by increasing turbine inlet temperatures (TIT). The need for heat-resistant materials like ceramics is particularly acute for small turbomachines for which efficiencies are ...