Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 21-40 of 9298
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In Situ and Ex Situ Measurement of Stresses in Environmental Barrier Coatings
(The American Society of Mechanical Engineers (ASME), 2024)Ceramic matrix composites (CMCs) offer a step improvement in temperature capability over the current best high-temperature superalloys for gas turbine applications. Silicon carbide (SiC)-based CMCs react with water vapor ... -
Non-Synchronous Vibration: Characterization of the Aerodynamic Disturbance and Its Dependency on Local Tip Clearance
(The American Society of Mechanical Engineers (ASME), 2024)Nonsynchronous vibrations (NSV) occurring near the stall boundary pose a major challenge to the design of safe and efficient compressors and fans. NSV occurs when aerodynamic disturbances which develop close to the aerodynamic ... -
Application of Interface Reduction Methods to Rotordynamic Casing Models
(The American Society of Mechanical Engineers (ASME), 2024)As the use of digital twins for the purpose of structural health monitoring increases, so does the demand for high-quality models. In the area of rotating machines, this means that the casing must also be taken into account. ... -
Cylindrical Composite Structural Design for Underwater Compressed Air Energy Storage
(The American Society of Mechanical Engineers (ASME), 2024)The utilization of renewable energy sources is pivotal for future energy sustainability. However, the effective utilization of this energy in marine environments necessitates the implementation of energy storage systems ... -
Investigation of an Ammonia-Fueled SOFC-mGT Hybrid System: Performances Analysis and Comparison With Natural Gas-Based System
(The American Society of Mechanical Engineers (ASME), 2024)Hybrid systems (HS) are highly attractive in power generation due to their potential for higher power outputs and efficiencies by integrating different technologies. Among solid oxide fuel cell (SOFC) plants, the SOFC-Micro-Gas ... -
An Advanced Sine-Hyperbolic Creep-Damage Model Incorporating Threshold Strength
(The American Society of Mechanical Engineers (ASME), 2024)This study aims at improving the classic sine-hyperbolic (Sinh) creep-damage model to predict minimum-creep-strain-rate (MCSR), rupture, damage, and creep deformation. The Sinh model employs a continuum-damage-mechanics-based ... -
A Comprehensive Literature Review on the Resolution of Turbine Engine Performances' Inverse Problems
(The American Society of Mechanical Engineers (ASME), 2024)Turbine engine monitoring is a well-known and well-studied subject that proves to be essential for the aeronautic industry. A popular approach in engine monitoring is constructing indicators that reflect systems' health ... -
Equivalence Ratio-Driven Flame Response of an Industrial Premixed Burner: Experiments and Modeling
(The American Society of Mechanical Engineers (ASME), 2024)This paper presents an analysis of the unsteady heat release rate response of premixed flames to equivalence ratio perturbations for an industrial premixed swirl-based burner. During this investigation, perfectly and ... -
Creep Lifetime Prediction of Alloy 617 Using Black Box Machine Learning Approach
(The American Society of Mechanical Engineers (ASME), 2024)This study explored the application of black box machine learning (ML) to build high throughput models that predict the creep response of Ni-based Alloy 617. Black box ML refers to highly complex machine learning algorithms ... -
Performance of sCO2 Cycles for Waste Heat Recovery and Techno-Economic Perspective as Gas Turbine Bottoming Cycle
(The American Society of Mechanical Engineers (ASME), 2024)Supercritical carbon dioxide (sCO2) cycles are compact, cost-effective and widely adaptable to various heat sources, including the waste heat from gas turbine (GT) exhaust gases. While the addition of a steam cycle enhances ... -
A Thermal Model for a Hybrid Gas Bearing System in Oil-Free Turbochargers
(The American Society of Mechanical Engineers (ASME), 2024)With little drag friction, gas bearings operate at high rotor speed and high temperature and thus enable long operating life along with material damping for mechanical energy dissipation. However, most computational tools ... -
Complete Dynamics From Ignition to Stabilization of a Lean Hydrogen Flame With Thickened Flame Model
(The American Society of Mechanical Engineers (ASME), 2024)In recent years, attention has been paid to hydrogen thanks to its carbon-free nature and its interesting characteristics as an energy vector. Despite the large number of numerical analyses regarding hydrocarbon combustion ... -
Prognostics and Health Management for Electrified Aircraft Propulsion: State of the Art and Challenges
(The American Society of Mechanical Engineers (ASME), 2024)In recent years, the aviation industry has witnessed a transformative wave of innovation in electrified aircraft propulsion (EAP), driven by sustainability and efficiency goals. Integration of novel electrical subsystems, ... -
Experimental Design Validation of a Swirl-Stabilized Burner With Fluidically Variable Swirl Number
(The American Society of Mechanical Engineers (ASME), 2024)Swirling flows are commonly used for flame stabilization in gas turbine combustors, which are hence equipped with suitable swirler units. In these units the air rotation, quantified by the swirl number, is fixed through ... -
An Efficient Uncertainty Quantification Method Based on Inter-Blade Decoupling for Compressors
(The American Society of Mechanical Engineers (ASME), 2024)A compressor usually contains multiple blade rows, and its uncertainty dimensionality grows proportionally with the number of blade rows, leading to a rapid increase in required sample size for uncertainty quantification ... -
Numerical Investigation of CO and NO Production From Premixed Hydrogen/Methane Fuel Blends
(The American Society of Mechanical Engineers (ASME), 2024)There is significant interest in utilizing hydrogen as an energy carrier in a net-zero carbon energy economy. A variety of fundamental and practical issues associated with premixed hydrogen/methane combustion must be ... -
Development of a Virtual Chemistry Reaction Mechanism for H2/CH4 Turbulent Combustion Modelling
(The American Society of Mechanical Engineers (ASME), 2024)The identification of the combustion model is always guided by the compromise between accuracy and computational cost. While species transport models offer accuracy, their computational cost requirement can become prohibitive, ... -
Foreign Object Damage of Environmental Barrier Coatings Subjected to CMAS Attack
(The American Society of Mechanical Engineers (ASME), 2025)Foreign object damage (FOD) and attack by calcium–magnesium–aluminosilicates (CMAS) have been identified as two key damage and failure mechanisms in environmental barrier coatings (EBCs), which are being developed as an ... -
The Hybrid Pathway to Flexible Power Turbines, Part III: Enabling Live Thermal Boundary Prediction Using Real-Time Plant Measurements and LSTM Neural Networks
(The American Society of Mechanical Engineers (ASME), 2025)The global drive toward renewable energy is imposing challenging operating requirements on power turbines. Flexible load-leveling applications must accept more frequent and demanding start-stop cycles. Full transient ... -
Creep Properties of Nickel Alloys—Comparison Between Conventional and Laser Powder Bed Fusion Manufacturing Routes
(The American Society of Mechanical Engineers (ASME), 2025)Metal laser powder bed fusion (PBF-LB/M) is a commonly used additive manufacturing process for gas turbine parts. This manufacturing method allows for small quantity batches with complex part designs. The mechanical behavior ...