Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 3121-3140 of 9564
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Filtration Characteristics of Fuel Neutral Particulates Using a Heterogeneous Multiscale Filtration Model
(The American Society of Mechanical Engineers (ASME), 2015)Filtration characteristics of fuel neutral soot particulate were studied using a recently developed heterogeneous multiscale filtration (HMF) model. In the HMF model, a probability density function (PDF) based pore size ... -
A New Gas Path Fault Diagnostic Method of Gas Turbine Based on Support Vector Machine
(The American Society of Mechanical Engineers (ASME), 2015)As a crucial section of gas turbine maintenance decisionmaking process, to date, gas path fault diagnostic has gained a lot of attention. However, modelbased diagnostic methods, like nonlinear gas path analysis (GPA) and ... -
Experimental Thermal Field Measurements of Film Cooling Above the Suction Surface of a Turbine Vane
(The American Society of Mechanical Engineers (ASME), 2015)Twodimensional thermal profiles were experimentally measured downstream of a single row of film cooling holes on both an adiabatic and a matched Biot number model turbine vane. The measurements were taken as a comparison ... -
A Refined Model for Knock Onset Prediction in Spark Ignition Engines Fueled With Mixtures of Gasoline and Propane
(The American Society of Mechanical Engineers (ASME), 2015)In the last decade, gaseous fuels, such as liquefied petroleum gas (LPG) and natural gas (NG), widely spread in many countries, thanks to their prerogative of low cost and reduced environmental impact. Hence, bifuel engines, ... -
A Multicomponent Blend as a Diesel Fuel Surrogate for Compression Ignition Engine Applications
(The American Society of Mechanical Engineers (ASME), 2015)A mixture of ndodecane and mxylene is investigated as a diesel fuel surrogate for compression ignition (CI) engine applications. Compared to neat ndodecane, this binary mixture is more representative of diesel fuel because ... -
Design, Modeling, and Performance Testing of a Weak Coupling Combined Radial–Axial Magnetic Bearing
(The American Society of Mechanical Engineers (ASME), 2015)Most combined radial–axial magnetic bearing (CRAMB) is usually composed of a radial magnetic bearing (RMB) unit and an axial magnetic bearing (AMB) unit. The coupling problems in different degrees of freedom (DOF) will ... -
Mistuning Effects on Aero elastic Stability of Axial Compressor Rotor Blades
(The American Society of Mechanical Engineers (ASME), 2015)The mistuning effects on the aeroelastic stability of axial compressor rotor blades have been investigated by employing aeroelastic eigenvalue method. An axial compressor rotor suffered from flutter failure has been analyzed ... -
Frequency and Stability Analysis Method of Asymmetric Anisotropic Rotor Bearing System Based on Three Dimensional Solid Finite Element Method
(The American Society of Mechanical Engineers (ASME), 2015)An efficient analysis method is suggested to investigate the frequency characteristics and stability of asymmetric anisotropic rotorbearing systems. Modifications are made to incorporate the effect of stator asymmetry into ... -
Sensitivity Analysis of Auto Ignition Simulation at Gas Turbine Operating Conditions
(The American Society of Mechanical Engineers (ASME), 2015)The demand to reduce CO2 emissions favors the use of alternative hydrogenrich fuels, which can stem from precombustion carbon capture or powertogas technologies. These fuels are characterized by a higher reactivity and ... -
Dynamic Identification of Thermodynamic Parameters for Turbocharger Compressor Models
(The American Society of Mechanical Engineers (ASME), 2015)A novel experimental procedure is presented which allows simultaneous identification of heat and work transfer parameters for turbocharger compressor models. The method introduces a thermally transient condition and uses ... -
Exploitation of Acoustic Effects in Film Cooling
(The American Society of Mechanical Engineers (ASME), 2015)There have been numerous studies of the behavior of shaped film cooling holes for turbine applications. It is known that the introduction of coolant is an unsteady process, and a handful of studies have described and ... -
Impact of Very High Injection Pressure on Soot Emissions of Medium Speed Large Diesel Engines
(The American Society of Mechanical Engineers (ASME), 2015)Measures exist to adjust tailpipe NOx emissions to assigned values, for example cooled exhaust gas recirculation (EGR) or a selective catalytic reduction (SCR) catalyst in conjunction with urea. The situation is quite ... -
Conrod Bearings With an Optimized Narrow Circumferential Oil Groove: Simulated Durability Improvement for Heavy Duty Applications
(The American Society of Mechanical Engineers (ASME), 2015)Under normal operating conditions, engine crankshaft bearings experience variations in oil film temperature due to shearing of the oil film. This can have a negative impact on the bearing operating life since the viscosity ... -
A Novel Fuel Performance Index for Low Temperature Combustion Engines Based on Operating Envelopes in Light Duty Driving Cycle Simulations
(The American Society of Mechanical Engineers (ASME), 2015)Lowtemperature combustion (LTC) engine concepts such as homogeneous charge compression ignition (HCCI) offer the potential of improved efficiency and reduced emissions of nitrogen oxide (NOx) and particulates. However, ... -
Design and Development of a Convective Air-Cooled Turbine and Test Facility
(The American Society of Mechanical Engineers (ASME), 1961)Demands for higher jet engine thrust-to-weight ratios to satisfy the needs for high Mach number and vertical take-off aircraft are continually increasing. Since World War II, the three-fold ... -
Controlled SSCI With Moderate End Gas Auto Ignition for Fuel Economy Improvement and Knock Suppression
(The American Society of Mechanical Engineers (ASME), 2015)Hybrid combustion mode including flame propagation induced by spark ignition (SI) and autoignition could be an effective method to improve fuel economy and suppress engine knock simultaneously. An experimental research on ... -
Application of Turbine Torsional Oscillation Damping Controller to Static Var Compensator
(The American Society of Mechanical Engineers (ASME), 2015)This paper proposes a new auxiliary turbine torsional oscillation damping controller (TTODC) for static var compensator (SVC) to dampen out subsynchronous oscillations in power systems containing series compensated ... -
Effect of Particle Size Distribution on the Deep Bed Capture Efficiency of an Exhaust Particulate Filter
(The American Society of Mechanical Engineers (ASME), 2015)The exhaust filtration analysis system (EFA) developed at the University of Wisconsin–Madison was used to perform microscale filtration experiments on cordierite filter samples using particulate matter (PM) generated by ... -
Implementation Challenges and Solutions for Homogeneous Charge Compression Ignition Combustion in Diesel Engines
(The American Society of Mechanical Engineers (ASME), 2015)Homogeneous charge compression ignition (HCCI) combustion in diesel engines can provide cleaner operation with ultralow NOx and soot emissions. While HCCI combustion has generated significant attention in the last decade, ... -
A New Numerical Method for Developing the Lumped Dynamic Model of Valve Train
(The American Society of Mechanical Engineers (ASME), 2015)The dynamics of valve train is influenced by stiffness, size, and mass distribution of its components and initial valve clearance and so on. All the factors should be taken into consideration correctly by dynamic model and ...