Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 2381-2400 of 9564
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Broadband Combustion Noise Simulation of the PRECCINSTA Burner Based on Stochastic Sound Sources
(The American Society of Mechanical Engineers (ASME), 2017)Combustion noise in the laboratory scale PRECCINSTA (prediction and control of combustion instabilities in industrial gas turbines) burner is simulated with a new, robust, and highly efficient approach for combustion noise ... -
Finite Element Analysis of the Unsteady Thrust Characteristics of Pulse Detonation Engines
(The American Society of Mechanical Engineers (ASME), 2016)A general, dynamical approach developed a high-fidelity, finite element model of a pulse detonation engine (PDE). The approach deconvolved the structural response due to cyclic acceleration that would be measured by a load ... -
Numerical Research on Tribological Performance of Textured Liner Surface Under Different Combustion Modes
(The American Society of Mechanical Engineers (ASME), 2017)With the increasingly stringent requirements on energy saving and environmental-friendly for internal combustion (IC) engine, new concepts like novel combustion mode and surface texturing technology have emerged. In order ... -
Investigation of Different Operation Strategies to Provide Balance Energy With an Industrial Combined Heat and Power Plant Using Dynamic Simulation
(The American Society of Mechanical Engineers (ASME), 2017)Intermittency of renewable electricity generation poses a challenge to thermal power plants. While power plants in the public sector see a decrease in operating hours, the utilization of industrial power plants is mostly ... -
Techno-Economic Assessment of Gas Turbine Cogeneration Cycles Utilizing Anaerobic Digestion Products for Biogas Fuel
(The American Society of Mechanical Engineers (ASME), 2017)This work presents the development of an integrated approach for the techno-economic assessment of recuperated gas turbine cycles utilizing anaerobic digestion (AD) products of animal manure and energy crops for biogas ... -
Influence of Main Swirler Vane Angle on the Ignition Performance of TeLESS-II Combustor
(The American Society of Mechanical Engineers (ASME), 2017)In order to balance the low emission and wide stabilization for lean premixed prevaporized (LPP) combustion, the centrally staged layout is preferred in advanced aero-engine combustors. However, compared with the conventional ... -
Unsteady Computational Fluid Dynamics Investigation of Effusion Cooling Process in a Lean Burn Aero-Engine Combustor
(The American Society of Mechanical Engineers (ASME), 2017)This work describes the main findings of a computational fluid dynamics (CFD) analysis intended to accurately investigate the flow field and wall heat transfer as a result of the mutual interaction between a swirling flow ... -
Flow Field Characterization at the Outlet of a Lean Burn Single-Sector Combustor by Laser-Optical Methods
(The American Society of Mechanical Engineers (ASME), 2017)High overall pressure ratio (OPR) engine cycles for reduced NOx emissions will generate new aggravated requirements and boundary conditions by implementing low emission combustion technologies into advanced engine ... -
Understanding In-Cylinder Flow Variability Using Large-Eddy Simulations
(The American Society of Mechanical Engineers (ASME), 2016)Multicycle large-eddy simulations (LES) of motored flow in an optical engine housed at the University of Michigan have been performed. The simulated flow field is compared against particle image velocimetry (PIV) data in ... -
Optimizing Separate Exhaust Turbofans for Cruise Specific Fuel Consumption
(The American Society of Mechanical Engineers (ASME), 2017)Cruise specific fuel consumption (SFC) of turbofan engines is a key metric for increasing airline profitability and for reducing CO2 emissions. Although increasing design bypass ratio (BPR) of separate exhaust turbofan ... -
Characteristics of a Spherical Seat TPJB With Four Methods of Directed Lubrication—Part II: Rotordynamic Performance
(The American Society of Mechanical Engineers (ASME), 2017)Measured and predicted rotordynamic characteristics are presented for a four-pad, spherical-seat, tilting-pad journal bearing (TPJB) with 0.5 pivot offset, 0.6 L/D, 101.6 mm nominal diameter, and 0.3 preload in the ... -
Study of Assisted Compression Ignition in a Direct Injected Natural Gas Engine
(The American Society of Mechanical Engineers (ASME), 2017)Natural gas direct injection (DI) and glow plug ignition assist technologies were implemented in a single-cylinder, compression-ignition optical research engine. Initial experiments studied the effects of injector and glow ... -
Tailoring Charge Reactivity Using In-Cylinder Generated Reformate for Gasoline Compression Ignition Strategies
(The American Society of Mechanical Engineers (ASME), 2017)In-cylinder reforming of injected fuel during a negative valve overlap (NVO) recompression period can be used to optimize main-cycle combustion phasing for low-load low-temperature gasoline combustion (LTGC). The objective ... -
Multidisciplinary Design and Optimizations of Swept and Leaned Transonic Rotor
(The American Society of Mechanical Engineers (ASME), 2017)Optimization problems in many engineering applications are usually considered as complex subjects. Researchers are often obliged to solve a multi-objective optimization problem. Several methodologies such as genetic algorithm ... -
A Detailed Modular Governor-Turbine Model for Multiple-Spool Gas Turbine With Scrutiny of Bleeding Effect
(The American Society of Mechanical Engineers (ASME), 2017)Multiple-spool gas turbines are usually utilized for power supply in aircrafts, ships, and terrestrial electric utility plants. As a result, having a reliable model of them can aid with the control design process and ... -
Development and Performance Measurements of a Beta-Type Free-Piston Stirling Engine Along With Dynamic Model Predictions
(The American Society of Mechanical Engineers (ASME), 2017)This paper presents the development and performance measurements of a beta-type free-piston Stirling engine (FPSE) along with dynamic model predictions. The FPSE is modeled as a two degrees-of-freedom (2DOF) vibration ... -
High-Speed Imaging and Measurements of Ignition Delay Times in Oxy-Syngas Mixtures With High CO2 Dilution in a Shock Tube
(The American Society of Mechanical Engineers (ASME), 2017)In this study, syngas combustion was investigated behind reflected shock waves in order to gain insight into the behavior of ignition delay times and effects of the CO2 dilution. Pressure and light emissions time-histories ... -
The Effect of Fuel Staging on the Structure and Instability Characteristics of Swirl-Stabilized Flames in a Lean Premixed Multinozzle Can Combustor
(The American Society of Mechanical Engineers (ASME), 2017)Fuel staging is a commonly used strategy in the operation of gas turbine engines. In multinozzle combustor configurations, this is achieved by varying fuel flow rate to different nozzles. The effect of fuel staging on flame ... -
Time-Response of Recent Prefilming Airblast Atomization Models in an Oscillating Air Flow Field
(The American Society of Mechanical Engineers (ASME), 2017)The present study investigates the response of recent primary breakup models in the presence of an oscillating air flow and compares them to an experiment realized by Müller (2015, “Experimentelle Untersuchung des ... -
Process Analysis of Selective Exhaust Gas Recirculation for CO2 Capture in Natural Gas Combined Cycle Power Plants Using Amines
(The American Society of Mechanical Engineers (ASME), 2017)Postcombustion CO2 capture from natural gas combined cycle (NGCC) power plants is challenging due to the large flow of flue gas with low CO2 content (∼3–4 vol %) that needs to be processed in the capture stage. A number ...