Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 41-60 of 9298
-
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 ... -
Temperature Field Measurements in Swirl Spray Flames Using Two-Line Planar Laser Induced Fluorescence Thermometry
(The American Society of Mechanical Engineers (ASME), 2024)This paper investigates the temperature fields in a centrally staged swirl spray combustor using two-line OH planar laser induced fluorescence (PLIF) thermometry at elevated inlet pressures and temperatures up to 0.62 MPa ... -
An Optimized and Reduced Chemical Kinetic Model for Hydrogen and Natural Gas Blends Combustion in Industrial Gas Turbines
(The American Society of Mechanical Engineers (ASME), 2024)Natural gas is one of the common fuels that is used in gas turbines for power generation. Due to its interest in power generation and other applications, there are several chemical kinetic models available in the literature ... -
A Surrogate Model Approach to Predict Operations and Maintenance Cost for Combined Cycle Power Plant
(The American Society of Mechanical Engineers (ASME), 2024)In the transition toward carbon neutrality by 2050, renewable energy sources are gaining prominence. The variability of renewable energy poses challenges for power grid stability. Gas turbine combined cycle (GTCC) power ... -
Effects of Lattice Orientation Angle on TPMS-Based Transpiration Cooling
(The American Society of Mechanical Engineers (ASME), 2025)Establishing a continuous cooling film is an effective way to thermally protect hot-gas path components of gas turbines. For aero-engines, effusion cooling is the state-of-the-art method for developing cooling films. ... -
Experiments on Structurally Mistuned UHBR Open-Test-Case Fan ECL5/CATANA
(The American Society of Mechanical Engineers (ASME), 2025)The operational capabilities of turbofan engines encounter limitations due to instabilities arising from tightly coupled interactions among aerodynamics, acoustics, and structural mechanics. Modern fans and compressors ... -
Systems-Based Approach to Predicting Thermal Barrier Coating Delamination Due to CMAS Infiltration
(The American Society of Mechanical Engineers (ASME), 2025)Calcium-magnesium alumino-silicate (CMAS) infiltration and attack are difficult to simulate at real-world rates. To better understand the sensitivity of the process to engine operating parameters and CMAS chemical composition, ...