Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 301-320 of 9564
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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 ... -
Investigation of Grooved Front Plate for Inlet Swirl Reduction in Brush Seals
(The American Society of Mechanical Engineers (ASME), 2025)Brush seals are plausible replacements for conventional labyrinth seals in gas turbine internal air systems. They can offer superior leakage performance due to their compliant nature and reduced effective clearance during ... -
Experimental Investigation of Particulate Emissions From an Ammonia-Fueled Internal Combustion Engine
(The American Society of Mechanical Engineers (ASME), 2025)Ammonia combustion is a topic of active research due to the need for fuel decarbonization. Although ammonia does not contain carbon, its use in internal combustion engines (ICEs) may still form nitrogen-containing ultrafine ... -
Characterization of Crankcase Ventilation Gas on Stationary Natural Gas Engines
(The American Society of Mechanical Engineers (ASME), 2025)Natural gas stands out as a prominent alternative fuel, boasting a well-established infrastructure for extraction and transport, substantial cost advantages, and potential for mitigating greenhouse gas (GHG) emissions. Its ... -
Multifidelity Optimization of Turbulence in a Gas Turbine Combustor Simulator
(The American Society of Mechanical Engineers (ASME), 2025)Combustor turbulence in a gas turbine engine greatly influences the efficiency of the downstream high-pressure turbine stage. Here we use a multifidelity computational optimization methodology to modify the geometry of a ... -
Modeling and Performance Analysis on an Integrated System Combining Supercritical Carbon Dioxide Brayton Cycle With Leakage Feedback Utilizing a Heat Pump or Direct Compression
(The American Society of Mechanical Engineers (ASME), 2025)CO2 leakage due to the coexistence of pressure differentials and clearances within the integrated turbine-alternator-compressor (TAC) of the kW-level sCO2 Brayton cycle is a key issue affecting cycle efficiency and long-term ... -
High-Temperature Industrial-Scale CO2 Heat Pumps: Thermodynamic Analysis and Pilot-Scale Testing
(The American Society of Mechanical Engineers (ASME), 2025)Electrification of heat-generating processes is a key means to decarbonize industrial emissions, and heat pumps significantly improve the efficiency of electrified heat. Carbon dioxide is one of the oldest known heat pump ... -
Data-Driven Approach for Predicting Vibration Response of Bladed Disks With Geometric Mistuning
(The American Society of Mechanical Engineers (ASME), 2025)Deviations in the bladed disk manufacturing, such as uneven thickness, surface roughness, or sinkholes in casted wheels, can cause geometric mistuning and result in vibration amplification, severely decreasing reliability. ... -
Methanol Operation in Heavy-Duty DICI Dual-Fuel Engines: Investigating Charge Cooling Effects Using Engine Combustion Network Spray D Data
(The American Society of Mechanical Engineers (ASME), 2025)Methanol is a promising alternative fuel, which can assist in reducing emissions in heavy-duty (HD) dual-fuel (DF) compression ignition (CI) engines. In medium and large bore marine engines, DF operation is achieved through ... -
The Hybrid Pathway to Flexible Power Turbines: Part IV, Automated Construction of Mesh Derived Thermal Network Models for Fast Full-Machine Thermal Analysis
(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 ... -
Comparative Study on the Effect of Premixed Equivalence Ratio on Engine Characteristics of Ammonia-Fueled Engine Under Diesel Pilot Ignition Versus Spark Ignition Combustion Mode
(The American Society of Mechanical Engineers (ASME), 2025)The adoption of zero-carbon fuel like ammonia will play a key role in the achievement of carbon neutrality targets. This work reports a comparative study on the effect of premixed equivalence ratio (Φpremix aried from 0.8 ... -
The Effect of Tip Clearance on Fan Aeroelasticity Considering Acoustic Propagation Characteristics
(The American Society of Mechanical Engineers (ASME), 2025)Tip clearance is a critical parameter affecting fan performance and aeroelastic stability. This paper investigates the effect of tip clearance on fan aeroelasticity under different acoustic propagation characteristics ... -
Back to the Future: Revisiting Nonpremixed Designs for Fuel Flexible (H2/NH3/CH4), Low NOx Combustion
(The American Society of Mechanical Engineers (ASME), 2025)Future energy conversion devices need to operate in dynamic environments with stringent emissions requirements and various potential fuels, including hydrogen, ammonia, methane, and other light hydrocarbons from fossil or ... -
Techno-Economic Analysis and Optimal Supercritical Carbon Dioxide Power Cycle Configuration for Novel Concentrating Solar Power Plants Adopting Tubular Fluidized Particles Central Receivers
(The American Society of Mechanical Engineers (ASME), 2025)Concentrating solar power (CSP) plants, thanks to the use of cost-competitive thermal energy storage, can provide back-up power guaranteeing a zero-emission alternative to conventional power plants and offer balancing ... -
Assessment of a Liquid Hydrogen Conditioning System for Retrofitting on Kerosene Designed Turbofans
(The American Society of Mechanical Engineers (ASME), 2025)As energy transition to alternative fuels for civil aviation is likely to be gradual, hydrogen’s first entry to service may be implemented on existing gas turbine engines. In this paper a novel liquid hydrogen conditioning ...