Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 4081-4100 of 9564
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Analysis of a Micro Gas Turbine Fed by Natural Gas and Synthesis Gas: MGT Test Bench and Combustor CFD Analysis
(The American Society of Mechanical Engineers (ASME), 2012)In recent years, the interest in the research on energy production systems fed by biofuels has increased. Gaseous fuels obtained through biomass conversion processes such as gasification, pyrolysis ... -
Performance and Emissions Characteristics of Bio-Diesel (B100)-Ignited Methane and Propane Combustion in a Four Cylinder Turbocharged Compression Ignition Engine
(The American Society of Mechanical Engineers (ASME), 2012)Different combustion strategies and fuel sources are needed to deal with increasing fuel efficiency demands and emission restrictions. One possible strategy is dual fueling using readily available ... -
Experimental Study of Low Temperature Diesel Combustion Sensitivity to Engine Operating Parameters
(The American Society of Mechanical Engineers (ASME), 2012)This work elucidated which engine operating parameters have the greatest influence on Low temperature diesel combustion (LTC) and emissions. Key parameters were selected and evaluated at low and ... -
Knock In Various Combustion Modes in a Gasoline-Fueled Automotive Engine
(The American Society of Mechanical Engineers (ASME), 2012)Homogeneous charge compression ignition (HCCI) offers great potential for improved fuel economy and dramatically reduced NOx emissions, compared to typical spark ignition (SI) combustion. However, ... -
Design and Development of a New Landfill/Biogas Engine Oil for Modern, High BMEP Natural Gas Engines
(The American Society of Mechanical Engineers (ASME), 2012)The use of higher brake mean effective pressure (BMEP) engines in landfill or alternative gas applications has dramatically increased in the past few years. Operators are using these engines ... -
Effect of Hydrocarbon Emissions From PCCI-Type Combustion on the Performance of Selective Catalytic Reduction Catalysts
(The American Society of Mechanical Engineers (ASME), 2012)Core samples cut from full size commercial Fe-and Cu- zeolite selective catalytic reduction catalysts were exposed to a slipstream of raw engine exhaust from a 1.9-liter 4-cylinder diesel engine ... -
Reactivity Controlled Compression Ignition Using Premixed Hydrated Ethanol and Direct Injection Diesel
(The American Society of Mechanical Engineers (ASME), 2012)The present study uses numerical simulations to explore the use of hydrated (wet) ethanol for reactivity controlled compression ignition (RCCI) operation in a heavy duty diesel engine. RCCI uses ... -
Assessment of Residual Mass Estimation Methods for Cylinder Pressure Heat Release Analysis of HCCI Engines With Negative Valve Overlap
(The American Society of Mechanical Engineers (ASME), 2012)Increased residual levels in homogeneous charge compression ignition (HCCI) engines employing valve strategies such as recompression or negative valve overlap (NVO) imply that accurate estimation ... -
Experimental Analysis of the Dynamic Characteristics of a Hybrid Aerostatic Bearing
(The American Society of Mechanical Engineers (ASME), 2012)The dynamic characteristics of a hybrid aerostatic bearing are experimentally investigated on a test rig consisting of a rigid rotor driven by an impulse turbine. The rotor is horizontally ... -
Numerical-Experimental Comparison in the Simulation of Rotor/Stator Interaction Through Blade-Tip/Abradable Coating Contact
(The American Society of Mechanical Engineers (ASME), 2012)Higher aircraft energy efficiency may be achieved by minimizing the clearance between the rotating blade tips and respective surrounding casing. A common technical solution consists in the ... -
Aerodynamic Improvements of Wind-Turbine Airfoil Geometries With the Prescribed Surface Curvature Distribution Blade Design (CIRCLE) Method
(The American Society of Mechanical Engineers (ASME), 2012)The prescribed surface curvature distribution blade design (CIRCLE) method can be used for the design of two-dimensional (2D) and three-dimensional (3D) turbomachinery blade rows with continuous ... -
Real-Time Combustion Phase Detection Using Central Normalized Difference Pressure in CRDI Diesel Engines
(The American Society of Mechanical Engineers (ASME), 2012)To develop eco-friendly diesel engines, accurate combustion phase control is important due to its significant effects on harmful emissions and fuel efficiency. In order to accurately control the ... -
Lifing Requirement Based Turbine Airfoil Mass Estimation Method in Conceptual Aero-Engine Design
(The American Society of Mechanical Engineers (ASME), 2012)The presented paper describes a method developed by MTU Aero Engines to estimate the mass of turbine blades during multidisciplinary conceptual design studies based on a prescribed airfoil ... -
Emission Measurements and CH* Chemiluminescence of a Staged Combustion Rig for Stationary Gas Turbine Applications
(The American Society of Mechanical Engineers (ASME), 2012)An optically accessible combustion rig was constructed to study the combustion characteristics of a reactive jet in a vitiated crossflow. The rig features two staged combustion zones. The main ... -
A Novel Degree of Observability Used for Measurement Selections in Gas Path Diagnostics
(The American Society of Mechanical Engineers (ASME), 2012)A novel method for measurement selections of gas path diagnostics has been developed. This method is based on the singular value decomposition of the observability matrix of linear systems, ... -
Oxygen Transport Membranes for Ultra-Supercritical (USC) Power Plants With Very Low CO2 Emissions
(The American Society of Mechanical Engineers (ASME), 2012)Coal combustion for electric power generation is one of the major contributors to anthropogenic CO2 emissions to the atmosphere. Carbon capture and storage (CCS) technologies are currently ... -
Experimental Investigation of Turbine Stator Well Rim Seal, Re-Ingestion and Interstage Seal Flows Using Gas Concentration Techniques and Displacement Measurements
(The American Society of Mechanical Engineers (ASME), 2012)Gas turbine engine performance requires effective and reliable internal cooling over the duty cycle of the engine. Life predictions for rotating components subject to the main gas path temperatures ... -
Engine Design Strategies to Maximize Ceramic Turbine Life and Reliability
(The American Society of Mechanical Engineers (ASME), 2012)Ceramic turbines have long promised to enable higher fuel efficiencies by accommodating higher temperatures without cooling, yet no engines with ceramic rotors are in production today. Studies ... -
Experimental and Numerical Investigation of Combustor-Turbine Interaction Using an Isothermal, Nonreacting Tracer
(The American Society of Mechanical Engineers (ASME), 2012)Understanding the interaction between the combustor and turbine subsystems of a gas turbine engine is believed to be key in developing focused strategies for improving turbine performance. Past ... -
Propulsive Performance of Ideal Detonation Turbine Based Combined Cycle Engine
(The American Society of Mechanical Engineers (ASME), 2012)A novel two-mode propulsion system based on detonation combustion, known as a detonation turbine based combined cycle engine (DTBCC), was proposed and thermodynamically analyzed for potential ...