Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 1781-1800 of 9564
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Impact of Fuel Composition on Gas Turbine Engine Performance
(American Society of Mechanical Engineers (ASME), 2019)An industrial gas turbine can run on a wide variety of fuels to produce power. Depending on the fuel composition and resulting properties, specifically the hydrogen–carbon ratio, the available output power, operability, ... -
Reduced-Order Modeling for Stability and Steady-State Response Analysis of Asymmetric Rotor Using Three-Dimensional Finite Element Model
(American Society of Mechanical Engineers (ASME), 2019)A generalized and efficient technique of reduced-order model (ROM) is proposed in this paper for stability and steady-state response analysis of an asymmetric rotor based on three-dimensional (3D) finite element model. The ... -
A New Practical Approach to the Design of Industrial Axial Fans: Tube-Axial Fans With Very Low Hub-to-Tip Ratio
(American Society of Mechanical Engineers (ASME), 2019)This paper presents a simple but complete design method to obtain arbitrary vortex design tube-axial fans starting from fixed size and rotational speed. The method couples the preliminary design method previously suggested ... -
Advanced Control System for Grid-Connected SOFC Hybrid Plants: Experimental Verification in Cyber-Physical Mode
(American Society of Mechanical Engineers (ASME), 2019)This paper presents a model predictive controller (MPC) operating a solid oxide fuel cell (SOFC) gas turbine hybrid plant at end-of-life performance condition. Its performance was assessed with experimental tests showing ... -
Measurement of Hysteresis Energy Using Digital Image Correlation With Application to Energy-Based Fatigue Life Prediction
(American Society of Mechanical Engineers (ASME), 2019)A modified experimental method using digital image correlation (DIC), a noncontact optical method for measuring full-field displacements and strains, is used to interrogate accumulated fatigue damage for low and high cycle ... -
Effect of Biogas Composition Variations on Engine Characteristics Including Operational Limits of a Spark-Ignition Engine
(American Society of Mechanical Engineers (ASME), 2019)Biogas is a promising alternative fuel to reduce the consumption of petroleum-based fuels in internal combustion (IC) engines. In this work, the effect of various biogas compositions on the performance, combustion, and ... -
Application of a Novel Rotordynamic Identification Method for Annular Seals With Arbitrary Elliptical Orbits and Eccentricities
(American Society of Mechanical Engineers (ASME), 2019)The identification method using infinitesimal theory is proposed to predict rotordynamic coefficients of annular gas seals. The transient solution combined with moving grid method was unitized to obtain the fluid reaction ... -
Comparison of Ultra-High Rail Pressures and Postinjections for Soot Reduction With Massive Exhaust Gas Recirculation
(American Society of Mechanical Engineers (ASME), 2019)In this study, the application of ultra-high fuel injection pressure (up to 300 MPa) is compared with that of a post injection strategy for the reduction of soot at medium load conditions with exhaust gas recirculation ... -
Numerical Investigation on the Performance of a Regenerative Flow Turbine for Small-Scale Organic Rankine Cycle Systems
(American Society of Mechanical Engineers (ASME), 2019)In this study, the performance characteristics of a regenerative flow turbine (RFT) prototype have been investigated by means of a computational fluid dynamics (CFD) study. The prototype has been initially designed to be ... -
Experimental Analysis and Phenomenological Model for Liquid Jet Breakup in Swirling Flow of Air
(American Society of Mechanical Engineers (ASME), 2019)This paper presents detailed analysis of an experimental investigation of the impact of swirl number of subsonic cross-flowing air stream on liquid jet breakup at an airflow Mach number of 0.12, which is typical in gas ... -
Development of a Flow Visualization Borescope and a Two-Phase Flow Probe for Aeroengine Transmission Gears
(American Society of Mechanical Engineers (ASME), 2019)To reduce power losses due to oil flows in aeroengine gearboxes, the oil flows should be visualized and measured. In this study, we develop a flow visualization borescope that qualitatively visualizes oil flows along with ... -
Analysis of Intake Silencer Insertion Loss in a Marine Diesel Engine Turbocharger Based on Computational Fluid Dynamics and Acoustic Finite Element Method
(American Society of Mechanical Engineers (ASME), 2019)The analysis of intake silencer insertion loss (IL) was conducted using a hybrid numerical method, which combined computational fluid dynamics (CFD) and acoustic finite element method (FEM). First, an experimental test was ... -
Evaluating Optimization Strategies for Engine Simulations Using Machine Learning Emulators
(American Society of Mechanical Engineers (ASME), 2019)This work evaluates different optimization algorithms for computational fluid dynamics (CFD) simulations of engine combustion. Due to the computational expense of CFD simulations, emulators built with machine learning ... -
Application of the Perforated Plate in Passive Control of the Nonpremixed Swirl Combustion Instability Under Acoustic Excitation
(American Society of Mechanical Engineers (ASME), 2019)Perforated plates are widely used to attenuate noise emission and as acoustic liners in combustion chambers. In this study, the damping performance of the perforated plate located in the combustor inlet section is ... -
The Control Space for Knock Mitigation in Two-Stroke Engines for 10–25 kg Remotely Piloted Aircraft
(American Society of Mechanical Engineers (ASME), 2019)Interest is growing in converting commercially available, two-stroke spark-ignition engines from motor gasoline to low-anti-knock-index fuel such as diesel and Jet A, where knock-limited operation is a significant ... -
Accuracy of Diesel Engine Combustion Metrics Over the Full Range of Engine Operating Conditions
(American Society of Mechanical Engineers (ASME), 2019)Measuring and analyzing combustion is a critical part of the development of high efficiency and low emitting engines. Faced with changes in legislation such as real driving emissions (RDE) and the fundamental change in the ... -
Double Wall Cooling of an Effusion Plate With Simultaneous Cross Flow and Impingement Jet Array Internal Cooling
(American Society of Mechanical Engineers (ASME), 2019)Considered is double wall cooling, with full-coverage effusion-cooling on the hot side of the effusion plate, and a combination of impingement cooling and cross flow cooling, employed together on the cold side of the ... -
An Experimentally Derived Model to Predict the Water Film in a Compressor Cascade With Droplet Laden Flow
(American Society of Mechanical Engineers (ASME), 2019)In recent years, overspray fogging has become a powerful means for power augmentation of industrial gas turbines. Despite the positive thermodynamic effect on the cycle, droplets entering the compressor increase the risk ... -
Fundamental Study of Diesel-Piloted Natural Gas Direct Injection Under Different Operating Conditions
(American Society of Mechanical Engineers (ASME), 2019)Natural gas as an alternative fuel in engine applications substantially reduces both pollutant and greenhouse gas emissions. High pressure dual fuel (HPDF) direct injection of natural gas and diesel pilot has the potential ... -
Numerical Investigation on a New Concept of Shock Vector Control Nozzle
(American Society of Mechanical Engineers (ASME), 2019)Shock vector control (SVC) based on transverse jet injection is one of the fluidic thrust vectoring (FTV) technologies, and is considered as a promising candidate for the future exhaust system working at high nozzle pressure ...