Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 121-140 of 9564
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Real-Gas Centrifugal Compressor Design and Optimization for Hydrogen Blends and CO2-Rich Mixtures
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The transition toward low-emission energy systems requires centrifugal compressors capable of operating with real-gas working fluids and multicomponent mixtures. This paper presents the meanline and streamline ... -
Study on the Influence of Hydrogen Injector Layout and Hydrogen Injection Parameters on the Hydrogen and Air Introduction Capability of a Hydrogen Engine
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Hydrogen engines have attracted increasing attention due to zero carbon emission. Compared with the in-cylinder direct injection (DI), which has high requirements for nozzle sealing and durability, the port fuel ... -
Experimental Characterization of a Microgas Turbine Fueled by Ammonia–Natural Gas Blends
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Given the need to decarbonize the current energy production sector, to mitigate climate change and reduce greenhouse gas emissions, innovative fuels are gaining increasing attention. In this context, ammonia ... -
Stability and NOx Emissions of Oxy-Ammonia Swirl Premixed Flames in an Emissions-Controlled Gas Turbine Combustor
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This study provides a design-relevant numerical analysis of ammonia–oxygen (NH3/O2) combustion, focusing on the effects of inlet preheating (298–520 K), equivalence ratio (φ = 0.7–1.2), and bulk flow velocity ... -
A Data-Model Fusion Framework for Aero-Engine Degradation Diagnosis Under Measurement Underdetermined Conditions
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. In aircraft engine gas-path analysis, the number of measurable parameters is often limited and smaller than the number of health parameters to be estimated, resulting in an underdetermined diagnostic problem that ... -
Influence of Aerodynamic Probes for Measuring Distorted Inflow on the Performance in a High-Speed Axial Flow Fan
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Experimental evaluation of aero-engine compressor performance under distorted inflow conditions is clearly specified in airworthiness standards. Generally, to quantify the distortion intensity, six to eight ... -
Numerical Investigation of Methane Number Effect on Combustion, Performance, and Emissions in a Heavy-Duty Spark Ignition Natural Gas Engine
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. In this study, the effects of methane number (MN) on the numerical conversion of a heavy-duty diesel engine to a spark ignition (SI) natural gas engine were investigated. A high-compression-ratio configuration ... -
Numerical Study on Prediction and Mitigation of Aeroelastic Instabilities in Labyrinth Seals
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Labyrinth seals are noncontact fluid sealing elements widely employed at rotor–stator interfaces in turbomachinery to minimize leakage and maintain pressure differentials across various stages, thereby enhancing ... -
Experimental Investigation on the Combustion and Emission Characteristics of Near-/Supercritical Kerosene in Aero-Engine Combustion Chambers
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. To support the development of future high-performance aero-engine technology, the combustion and emission characteristics of near-/supercritical kerosene are investigated in this study using a single-cup combustor ... -
Thermomechanical Analysis of an Ignition-Assistance Device Due to Fuel Spray Impingement Using the Smoothed Particle Hydrodynamics Method
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Accurate prediction of the ignition-assistance device's thermomechanical response during fuel spray impingement is essential for understanding ignition reliability in aviation compression-ignition engines. This ... -
Mechanisms of Rotor–Rotor Interactions on Blade Loading in Vaneless Counter-Rotating Compressors at Different Matching Speeds
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Comparative analysis is conducted to clarify the influence mechanisms of rotor–rotor interactions on the blade loading of vaneless counter-rotating compressors at different matching speeds. Results reveal that ... -
Quantitative Analysis of Tolerance-Induced Static and Couple Unbalance in Steam Turbine Rotors
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Rotor-system unbalance is a critical factor affecting the vibration performance and operational reliability of steam turbines and is strongly influenced by geometric and assembly tolerances introduced during ... -
Using Layered Variable-Diameter Bristle Pack to Improve the Bristle Deflection, Bending Stress, and Reaction Tip Force Performance of Brush Seals
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The excessive bristle deflection and high bristle stress level at contact region in high pressure differential environment results in overload related brush seal failures. Variable bristle diameter (VBD) brush ... -
Physics-Informed Neural Networks for Reduced-Order Modeling of Turbomachinery Blisks With Small and Large Mistuning
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Comprehensively predicting the structural dynamics of turbomachinery blisks is of critical importance to the gas turbine industry. Located in the compressor and turbine stages, vibrations of these structures are ... -
Cryogenic Radial Turbine Design for High-Efficiency Hydrogen Liquefaction Plants
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Meeting the rising global demand for liquefied hydrogen will require a scale-up of liquefaction infrastructure. Higher plant capacities increase the viability of novel cycles and components, which can achieve ... -
Highly Efficient Recuperated Brayton Convertor for Lunar Power Applications: Cycle and Conceptual Turbomachinery Design
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This paper focuses on the conceptual design of an advanced closed brayton convertor (ACBC) with high temperatures for efficient power generation in space using Helium-Xenon (He-Xe) mixture as the working fluid. ... -
Dynamic Characterization of a Low Drag Power Loss Tilting Pad Journal Bearing
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. High-performance turbomachinery relies on tilting pad journal bearings (TPJBs) for high-speed operation while maintaining acceptable stability margins. However, TPJBs can produce large drag power losses that ... -
An Investigation on the Three-Dimensional and Unsteady Flow in a Multistage Axial Supercritical Carbon Dioxide Turbine
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This study investigates the aerodynamic design and analysis of a low aspect ratio, multistage, axial-flow sCO2 turbine for integration in power cycles for small modular reactors and concentrated solar power ... -
Vortex Evolution and Turbulence Dissipation During Leakage Flow in the Scallop Bionic Seal of Supercritical CO2 Turbomachinery Unit
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The supercritical carbon dioxide (SCO2) Brayton cycle system is considered one of the most representative energy conversion systems of the future. Current seal solutions used in the SCO2 turbomachinery have ... -
Minimal Modeling for Noise and Vibration Propensity of Low-Speed Axial Flow Rotor Blades Due to Vortex Shedding
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The subject of the paper is the phenomenon of shedding of vortices (termed herein as profile vortex shedding) from the region being upstream of the trailing edge (TE) of sections of blade profiles. The shed ...