Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 81-100 of 9564
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Numerical Demonstration of NO Emissions Reduction by Steam Injection in the Aero Engine Combustor IAE V2500
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Reducing nitrogen oxides (NOx) emissions is a key objective in the development of novel aero engines. The climate effect of NOx is not negligible at high altitudes, despite the regulation of NOx within the LTO ... -
Stall Inception Transition Mechanism and Warning Investigation on a Highly Loaded Axial Compressor With Radial Inlet Distortion
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. In a highly loaded axial-flow compressor, the type of stall inception transitions from a modal wave to a spike under tip radial distortion, while it remains a modal wave under hub radial distortion. To better ... -
Computational Investigation of Airframe Integration Effects on Turbojet Engine Aerodynamics and Combustion
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This study employs high-fidelity, unsteady, three-dimensional computational fluid dynamics (CFD) simulations to develop a comprehensive framework for engine-airframe integration, investigating the aerodynamic ... -
Experimental Investigation of Condensing Two-Phase Flows in a Turbocharger Turbine for Fuel Cell Applications
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The development of turbocharger turbines for fuel cell (FC) applications introduces unique challenges due to the working fluid. High humidity air as exhaust gas from the fuel cell can lead to condensation effects, ... -
Fully Premixed Hydrogen-Air Swirl Flames: Shapes and Transient Processes
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This article characterizes lean fully premixed hydrogen-air swirled flames obtained experimentally. The laboratory-scale experiment developed prior to acquiring the flame imaging data is described along with the ... -
Enabling Operational Flexibility of Power Generation Systems: Novel Experimental Facility for Characterization of Turbine Casing Thermal Field
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Flexible operations comprising rapid startup, shut-down, and high ramp rates are critical in a power system with accelerated renewable penetration. However, it amplifies thermal stresses and impacts plant cyclic ... -
Investigation of Liquid Film Atomization From the Trailing Edge of an Airfoil in a High-Speed Flow-Effect of Trailing Edge Thickness
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Liquid film atomization from trailing edges is found in numerous applications. These include air blast atomization in prefilming type fuel injectors and shedding from airfoils. This study investigates the effect ... -
Nonlinear Transient Analysis of Tilting Pad Journal Bearings Under Starved Lubrication
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Tilting pad journal bearings (TPJBs) have high vibration stability and are widely used in high-speed turbomachinery. In recent years, direct-lubricated TPJBs have been used to reduce bearing losses and bearing ... -
The Hydrogen-Fueled Allam Cycle: Thermodynamic Evaluation and Optimization After a Fuel Switch to Hydrogen
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The Allam Cycle is one of the most promising concepts in thermal power generation, especially due to its high thermal efficiency (>60%) and near-zero emissions while being fossil-fueled. In view of a global shift ... -
Optimizing Mechanical Performance of LPBF Inconel 718 for Turbo-Engine Applications Through Tailored Heat Treatment and Process Parameter Strategies
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Additive manufacturing (AM) with laser-based technologies such as, for instance, laser powder bed fusion (LPBF) offers the possibility to produce structurally complex components rapidly and cost-effectively while ... -
The Control of Hydrogen–Air Ignition Dynamics to Prevent Flashback
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. A potential strategy to safely ignite a hydrogen–air mixture is investigated using high-fidelity large eddy simulations (LESs) on an academic burner with a chamber back pressure to mimic the flow blockage ... -
Evaluation of Combustion Models and Reaction Mechanisms to Predict NOx and CO Emissions From Densely Distributed Lean-Premixed Multinozzle CH4/H2/Air Flames
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This work explores the importance of reaction mechanisms and combustion models on the flame length and emission characteristic prediction by computational fluid dynamics (CFD) simulations of a complex multinozzle ... -
Impact-Enhanced Resonant Vibration Absorber for Turbomachinery Blisks
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The study of blisks is essential to the development of safe and efficient turbomachines. Blisks are geometrically complex structures exposed to high temperatures and pressures that operate at high rotational ... -
Laminar Burning Speed Measurements of Dimethyl Ether–Hydrocarbon Mixtures
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Fossil fuels, when burned in the air, release large amounts of carbon dioxide (CO2) and greenhouse gases into the air, causing significant pollution. To reduce greenhouse gas emissions (CO2, CO, and NOx), alternative ... -
Design of Fuel Cell Systems in Aviation – Part II: Evaluation and Mission Analysis
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The use of polymer electrolyte membrane fuel cells (PEMFC) to generate propulsion power for future aircraft represents a promising approach to reducing carbon emissions caused by the aviation sector. The design ... -
Design of Fuel Cell Systems in Aviation—Part I: Modeling and Component Design
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The development of novel propulsion systems is essential to achieve the zero-emissions goals in aviation. One promising approach is the electrification of aircraft engines using hydrogen-based polymer electrolyte ... -
Teaching Aero-Engine Performance: Performance Analysis of Single-Spool and Two-Spool Engines
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. In this paper, we present an approach to teaching aircraft engine performance analysis that progresses from analytical models of single-spool engines to numerically calculated behavior of two-spool engines. ... -
Two-Phase Microchannel Heat Exchangers for Transcritical Carbon Dioxide Cycles—Investigation of Heat Transfer and Pressure Drop
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Supercritical and transcritical carbon dioxide (CO2) based cycles offer significant design and operational flexibilities for power generation and refrigeration. Transcritical CO2 cycles are particularly suited ... -
Environmental Resistance of High Entropy Alloys: Impact of Downstream Hydrogen Combustion on Oxidation Resistance
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This study explores the environmental resistance of Al-CoCrFeNi-based high entropy alloys (HEAs) placed downstream from a combustor using hydrogen fuel. High entropy alloys are interesting candidates for gas ... -
Adaptive Kalman Filter by Reinforcement Learning for Monitoring Aircraft Engines' Performance Against Abrupt Events
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Engine performance's inverse problem is a well-known subject in the context of engine monitoring, particularly important for the aeronautics industry. In this framework, we aim to construct health/performance ...