Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 101-120 of 9564
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Suppression of Coarse Droplet Formation from Gas-Sheared Liquid Sheets by Controlling the Trailing Edge Shape and Wettability
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. To mitigate the erosion issue in steam turbines, it is crucial to suppress the formation of coarse droplets spreading from the trailing edge upstream as well as from the shroud wall. The droplet size will be ... -
Experimental Investigation on the Dynamic Response of a Vaned Diffuser Compressor in Innovative Heat-Pump Systems
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Nowadays, heat pumps are playing a key role in reducing carbon footprint of heating and cooling systems. In large-scale industrial applications, centrifugal compressors are often used under variable conditions ... -
Assessment of a Hybrid LES-CAA Method for Predicting Flame Responses in Swirl-Stabilized Combustion Under Various Acoustic Excitations
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Thermoacoustic instabilities present a significant challenge in modern combustion systems due to the complex and potentially harmful interactions between unsteady heat release, acoustics, and flow dynamics. In ... -
Performance of an Ammonia Turbofan With the Inclusion of an Optimized Bleed Air Heat Exchanger
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. With the push for decarbonization in aviation, Ammonia has emerged as a promising fuel source due to its well-established production methods, defined transportation infrastructure, and higher volumetric energy ... -
Investigating Synergistic Effect of Double-Sided Solid Particle Erosion on Oxide/Oxide Ceramic Matrix Composites at Elevated Temperature
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This study investigates erosion behavior of oxide/oxide ceramic matrix composites (Ox/Ox CMCs) under varying thermomechanical conditions, including erosion-only, erosion-fatigue, and erosion-creep. Single and ... -
Stability Analysis of Flexible Rotor Supported by Active Hybrid Bearing With Fuzzy Logic–Based Control
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The classic film hydrodynamic bearing is a passive device, and its design does not consider the adaptive capacity to change with operation conditions. The film journal bearing coupling with servovalve, fuzzy ... -
Production of Fuel Cells for Aviation: Fields of Action for the Improvement of the Gravimetric Power Density and the Quality Assurance
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The aviation industry is committed to reducing its impact on the climate to meet political targets (Paris Climate Agreement, Green Deal) and enhance social acceptance. In particular, the ambitious climate protection ... -
Rotor Dynamic of Bearing-Rotor System Supported by Gas Foil Bearing Under Two Housing Excitations: Random Vibration and Transient Impulse
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. As the core component of the onboard refrigeration system, the turbo cooler is used to expand and cool the hot bleed of the engine, thus providing cold air. The extremely high rotating speed of the turbo cooler ... -
A Novel Reduced-Order Mathematical Model for Radial Turbines
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Radial turbines are commonly used to extract otherwise unused energy from engine exhausts, and are therefore an important component of many emission reducing technologies. There is a desire to quickly and reliably ... -
Evaluation of Performance Characteristics of a Surface Texturized Metallic Seal Using Helium Mass Spectrometry and Numerical Simulation
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. To evaluate the performance of the textured finish, three prototype seal designs were tested with a focus on load and leak rate characteristics. Each seal design had a similar surface finish with differently ... -
Assessment of a New 0.2 Hub-to-Tip Ratio Propeller Fan Design With Rigid-Body Blade Loading
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This paper presents the numerical assessment of a new 0.2 hub-to-tip ratio propeller fan with specific speed equal to 8.2, by means of an original low-order computational fluid dynamics (CFD) modeling approach. ... -
A Numerical Investigation Into the Effects of Equivalence Ratio and Exhaust Gas Recirculation on Performance and Operating Range in High Compression HCCI Engines
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This study investigates the performance of a high compression ratio engine converted to homogeneous charge compression ignition (HCCI) operation. A total of 24 case studies were conducted with φ = 0.22–0.29 and ... -
An Extended Artificially Thickened Flame Model for Turbulent Hydrogen and Hydrogen-Enriched Flames With Intrinsic Instabilities Under Gas Turbine Relevant Conditions
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Hydrogen and hydrogen blends with ammonia or natural gas are cornerstones in the transition to future environmentally friendly energy systems, such as gas turbines and aero-engines. However, hydrogen's unique ... -
Compressor Blade Vibration Measurement Using Radio Frequency Amplitude and Frequency Modulation
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Radio frequency (RF) sensors are a novel, noncontact, low-power measurement technology that offers potential for engine health monitoring. A series of experiments were conducted in a single-stage compressor to ... -
Pin Fin Effects in an Ammonia Reactor for Hydrogen Production Applied to a Carbon-Free Turbofan
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. In pursuit of net-zero aviation and sustainable fuel, this study focuses on developing a catalytic cracking unit (CCU) for a carbon-free turbofan engine concept utilizing ammonia as a hydrogen carrier. A simplified, ... -
On the Generation of Entropy Waves in the Dilution Zone of a Rich-Quench-Lean Combustion Chamber
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Entropy waves are responsible for the generation of indirect combustion noise and risk of enhancing combustion instabilities. Their prediction and modeling, especially in non-premixed flames, are challenging, ... -
The Impact of a Surrounding Coflow on the Thermoacoustic Stability of a Premixed CH4/H2 Flame
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The present study focuses on a radially staged injector, with a bluff-body stabilized inner pilot stage, and a trapped-vortex (TV) stabilized outer main stage. The influence of a nonreacting main stage flow (pure ... -
Chemical Reactor Network Modeling of Ammonia Rich-Quench-Lean Combustion Using a Partially Stirred Reactor Approach
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Ammonia is a promising alternative to hydrogen with high energy density and favorable storage and transport characteristics. However, low flammability and a propensity for high nitrogen oxide (NOx) emissions make ... -
Feasibility Study of a Brayton-Based High Temperature Heat Pump for Waste Heat Recovery in Industrial Applications
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Electrification of thermal users through heat pumps can be a promising way to enhance the exploitation of increasing renewable electrical capacity, offering significant opportunities for decarbonizing the industrial ... -
Effect of Exhaust Gas Recirculation on Combustion Efficiency in a Swirl Stabilized Flame With Blends of Natural Gas and Hydrogen
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Reducing the carbon impact of power-generation and industrial gas turbines can be achieved through blending of low-carbon fuels as well as carbon capture. In gas turbines, carbon capture is facilitated by the use ...