Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 281-300 of 9564
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Fault Detection on Short-Haul or Highly Dynamic Flights Using Transient Flight Segments
(The American Society of Mechanical Engineers (ASME), 2024)A machine learning-based approach is presented, which allows to detect persistent engine faults after a single flight. It utilizes transient in-flight measurements and a transient engine model. The time series of the ... -
Vibration Characteristics of Aero-Engine With Co-Cavity Structure
(The American Society of Mechanical Engineers (ASME), 2025)The co-cavity structure replaces the rear bearing cavity and bearing frame of the power turbine shafting. This modification not only reduces the weight of the entire system but also diminishes the axial size of the engine ... -
Experimental Characterization of Superheated Ammonia Spray From a Single-Hole Spray M Injector
(The American Society of Mechanical Engineers (ASME), 2025)The growing recognition of ammonia as a carbon-free alternative fuel for both transportation and power generation is underscored by numerous studies. While the use of gaseous ammonia injection has been extensively considered, ... -
Design and Testing of a Compact, Reverse Brayton Cycle, Air (R729) Cooling Machine
(The American Society of Mechanical Engineers (ASME), 2024)Efforts to reduce the contribution of refrigeration to global warming have resulted in a phase-down of the use of fluorinated refrigerants. The alternative, natural refrigerants, such as propane (R290), have significantly ... -
Improved Engine Data Acquisition System and Interface to Enable Experimentation With Emerging Alternative Fuels in a Spark-Ignited Cooperative Fuel Research Engine
(The American Society of Mechanical Engineers (ASME), 2025)In the face of new engine research challenges, legacy hardware and once state-of-the-art assumptions may become less relevant, especially those made due to the computational limitations of the hardware at the time of initial ... -
Integrated System Modal and Mistuning Identification for Integrally Bladed Rotors
(The American Society of Mechanical Engineers (ASME), 2024)The safety of integrally bladed rotors is often assessed through bench-level vibration tests to measure amplification factors and back-out sector frequency deviations via mistuning identification (ID) algorithms. This ... -
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 ...