Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 461-480 of 9564
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The Effect of Heterogeneous Natural Gas–Hydrogen Input Into F-Class Gas Turbine Combustor As a Combustion Optimization Method
(The American Society of Mechanical Engineers (ASME), 2024)The global push to combat climate change by transitioning to clean power generation is accelerating. One promising avenue involves using hydrogen in place of natural gas in gas turbine-based power plants. While the development ... -
Experimental Study of the Dynamics of Lean Premixed Hydrogen Flames in a Multi Jet Combustor
(The American Society of Mechanical Engineers (ASME), 2024)In this study, the flame dynamics of lean premixed hydrogen jet flames are experimentally investigated. Acoustic and optical measurement devices are used to capture the response of a bundle of jet flames to acoustic forcing. ... -
Centrifugal Compressor Surge in Closed-Loop Systems: Initial Modeling and Comparison With Experiments
(The American Society of Mechanical Engineers (ASME), 2024)Heat pumps are expected to play a primary role in electrification of thermal users in the residential and industrial sectors. Dynamic compressors are widely used in large size heat pumps, thanks to their industrial ... -
Modeling of Metal Matrix Concentrated Solar Receivers for Supercritical Carbon Dioxide Power Blocks
(The American Society of Mechanical Engineers (ASME), 2024)Supercritical carbon dioxide (sCO2) power blocks for concentrating solar power (CSP) with novel metal matrix solar receivers have the potential to reduce operating expenses while improving overall system efficiencies. These ... -
Research on Effect of Endwall Contouring of Vaned Diffuser on Stable Operating Range of Centrifugal Compressor
(The American Society of Mechanical Engineers (ASME), 2024)The study investigates the impact of diverse endwall contouring strategies on the operational stability of a high-pressure ratio centrifugal compressor stage. Employing numerical simulation techniques, this study examines ... -
Large-Eddy Simulation Study of Flow and Combustion Dynamics in a Full-Scale Hydrogen–Air Rotating Detonation Combustor-Stator Integrated System
(The American Society of Mechanical Engineers (ASME), 2024)In the present work, a first-of-its-kind three-dimensional (3D) large-eddy simulation (LES) study is conducted to numerically investigate the combustion dynamics as well as aero-thermal phenomena in a full-scale nonpremixed ... -
Numerical Prediction of Inlet Geometry Influence on the In-Duct Acoustics of Small Centrifugal Compressors
(The American Society of Mechanical Engineers (ASME), 2024)Small centrifugal compressors are employed to boost automotive internal combustion engines or hydrogen fuel cells, amongst other applications. In many scopes, the overall intensity and quality of noise emission is a major ... -
Comparison of Ingestion of Different Size Hard and Soft Bodies Into a Representative Fan Assembly Model
(The American Society of Mechanical Engineers (ASME), 2024)Foreign matter ingestion into a jet engine is a significant hazard to the safety of aircraft. While soft body ingestions (i.e., bird or ice ingestions) have been extensively researched, the threat posed by uncrewed aircraft ... -
A High-Speed, High-Temperature, Micro-Cantilever Steam Turbine for Hot Syngas Compression in Small-Scale Combined Heat and Power
(The American Society of Mechanical Engineers (ASME), 2024)Coupling a biomass gasifier with a solid oxide fuel cell system through a high-temperature syngas compressor holds great promise to achieve low-emission, small-scale combined heat and power, since it reduces the number of ... -
Design-Point Techno-Economics of Brayton Cycle PTES for Combined Heat and Power
(The American Society of Mechanical Engineers (ASME), 2024)Pumped thermal energy storage (PTES) systems are grid batteries that use heat pumps to create both hot and cold thermal energy stores when there is excess electricity and then use a power cycle to convert the thermal energy ... -
Speed Strategy on High-Pressure Compressor for the Charging Process of Advanced Adiabatic Compressed Air Energy Storage During Dynamic Shutdown
(The American Society of Mechanical Engineers (ASME), 2024)Advanced adiabatic compressed air energy storage (AA-CAES) starts and shuts down frequently. The default operation of the high-pressure compressor (HP) connected to the cavern is to reduce the speed of the inverter motor ... -
Laboratory Tests in Cyber-Physical Mode for an Energy Management System Including Renewable Sources and Industrial Symbiosis
(The American Society of Mechanical Engineers (ASME), 2024)The aim of this paper regards the laboratory validation of an energy management system (EMS) for an industrial site on the Eigerøy island (Norway). It will be the demonstration district in the ROBINSON project for a ... -
Axial Flow Fan Performance in a Forced Draught Air-Cooled Heat Exchanger for a Supercritical Carbon Dioxide Brayton Cycle
(The American Society of Mechanical Engineers (ASME), 2024)An axial flow cooling fan has been designed for use in a concentrated solar power plant. The plant is based on a supercritical carbon dioxide (sCO2) Brayton cycle, and uses a forced draft air-cooled heat exchanger (ACHE) ... -
Impact of Diluents on Flame Stability With Blends of Natural Gas and Hydrogen
(The American Society of Mechanical Engineers (ASME), 2024)Two potential decarbonization pathways for natural gas (NG)-fueled gas turbine engines include blending hydrogen (H2) into NG and postcombustion carbon capture. H2 blending changes several combustion properties, including ... -
Turbulent Burning Velocity of High Hydrogen Flames
(The American Society of Mechanical Engineers (ASME), 2024)The turbulent burning velocity (ST) is one of the most important combustion properties controlling combustor operability limits, directly influencing blowoff, flashback, and combustion instabilities. Hydrogen has particularly ... -
Schlieren Image Velocimetry and Modal Decomposition Study of Preheated Isothermal Flow From a Generic Multi-Swirl Burner
(The American Society of Mechanical Engineers (ASME), 2024)This study presents an experimental investigation into the turbulent flow characteristics of an unconfined counter-rotating dual swirl burner under external acoustic excitation. Utilizing Schlieren image velocimetry (SIV), ... -
Nonpremixed Approaches for Fuel Flexible, Low NOx Combustors in High-Efficiency Gas Turbines
(The American Society of Mechanical Engineers (ASME), 2024)Lean, premixed combustor designs have almost completely replaced nonpremixed combustors for industrial gas turbine applications where NOx emissions are regulated. Nonetheless, these designs have also introduced turndown ... -
Experimental and Numerical Investigation of NH3/H2/N2 Combustion in a Premixed/Stratified Swirl Burner
(The American Society of Mechanical Engineers (ASME), 2024)Interest in using renewably produced, partially cracked ammonia in gas turbines is gaining traction, but challenges relating to emissions of NOx and unburned ammonia remain. This work progresses existing research on using ... -
Compressor Development for CO2-Based Pumped Thermal Energy Storage Systems
(The American Society of Mechanical Engineers (ASME), 2025)Pumped thermal energy storage (PTES) offers a cost-effective means to store electrical energy for long duration by utilizing a heat pump cycle to transfer thermal energy from a low temperature reservoir (LTR) to a high ... -
An Experimental Investigation on Combustion and Emissions of a Hydrogen Enriched Ammonia–Diesel Dual Fuel Engine at a Medium Load Condition
(The American Society of Mechanical Engineers (ASME), 2025)As a carbon-free hydrogen carrier, ammonia is easy to store, handle, and distribute compared to hydrogen itself. Switching from diesel to green ammonia in heavy-duty compression ignition engines dominating the power ...