Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 6221-6240 of 9564
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Assessment of Combustion Modes for Internal Combustion Wave Rotors
(The American Society of Mechanical Engineers (ASME), 1999)Combustion within the channels of a wave rotor is examined as a means of obtaining pressure gain during heat addition in a gas turbine engine. Three modes of combustion are assessed: premixed ... -
Computation of Three-Dimensional Compressible Flow From a Rectangular Nozzle With Delta Tabs
(The American Society of Mechanical Engineers (ASME), 1999)A three-dimensional viscous flow analysis is performed using a time-marching Reynolds-averaged Navier-Stokes code for a 3:1 rectangular nozzle with two delta tabs located at the nozzle exit plane ... -
New Nondimensional Parameters in Fluid Mechanics and Their Application to Turbine Flowmeter Data Analysis
(The American Society of Mechanical Engineers (ASME), 1999)Dimensional analysis has been used in experimental fluid mechanics for over a hundred years. Controllable and uncontrollable variables in an experiment can be efficiently organized into nondimensional ... -
Development of a Five-Step Global Methane Oxidation-NO Formation Mechanism for Lean-Premixed Gas Turbine Combustion
(The American Society of Mechanical Engineers (ASME), 1999)It is known that many of the previously published global methane oxidation mechanisms used in conjunction with computational fluid dynamics (CFD) codes do not accurately predict CH4 and CO ... -
Characterization of Fatigue Mechanisms of Thermal Barrier Coatings by a Novel Laser-Based Test
(The American Society of Mechanical Engineers (ASME), 1999)The use of high performance ceramic thermal barrier coatings in stationary gas turbines requires fundamental knowledge of their fatigue behavior under high temperature gradients and thermal cycling. ... -
Compression Ratio Effect on Methane HCCI Combustion
(The American Society of Mechanical Engineers (ASME), 1999)We have used the HCT (hydrodynamics, chemistry, and transport) chemical kinetics code to simulate HCCI (homogeneous charge compression ignition) combustion of methane-air mixtures. HCT is applied ... -
The Effects of Thermal Barrier Coatings on Diesel Engine Emissions
(The American Society of Mechanical Engineers (ASME), 1999)This study has characterized the influence of thermal barrier coatings (TBCs) applied to combustion chamber surfaces on the emissions from an indirect injection (IDI) diesel engine. The TBCs ... -
Pursuing Customer Satisfaction—An Abridged Technical History of Cummins Engine Development
(The American Society of Mechanical Engineers (ASME), 1999)The paper presents a brief overview of the technical and market development activity undertaken by Cummins Engine Company. The process of identifying customers, demonstrating product capability ... -
Limitations of Rigid Body Descriptions for Heavy-Duty Diesel Engine Vibration
(The American Society of Mechanical Engineers (ASME), 1999)Internal combustion engine vibration modeling commonly relies on assuming the engine is a linearly reacting rigid body, thereby ignoring rotating, reciprocating, and nonsolid engine components. ... -
On the Concept of Separate Aftercooling for Locomotive Diesel Engines
(The American Society of Mechanical Engineers (ASME), 1999)This paper describes a patented cooling system concept for a turbocharged diesel engine. In particular, it defines a cooling system having the capability of transferring some of the cooling ... -
Simulation and Experimental Analysis of Diesel Fuel-Injection Systems With a Double-Stage Injector
(The American Society of Mechanical Engineers (ASME), 1999)A double-spring, sacless-nozzle injector was fitted to the distributor-pump fuel-injection system of an automotive diesel engine in order to study its effect on the system performance for two ... -
A Contribution to the Analysis of Turbulence Anisotropy and Nonhomogeneity in an Open-Chamber Diesel Engine
(The American Society of Mechanical Engineers (ASME), 1999)Further investigation of the turbulence time-frequency spectral structure and its anisotropy and nonhomogeneity has been carried out in the combustion chamber of an automotive diesel engine with ... -
A New Compression Ignition Engine Concept for High Power Density
(The American Society of Mechanical Engineers (ASME), 1999)A new compression ignition (CI) engine concept has been identified which greatly improves power density over conventional CI engines. This paper reviews the scaling laws as they apply to power ... -
Performance of a Low Heat Rejection Diesel Engine With Air Gap Insulated Piston
(The American Society of Mechanical Engineers (ASME), 1999)A threaded air gap insulated piston provided effective insulation without causing sealing problems. The performance of the diesel engine with the air gap insulated piston was obtained with ... -
Mixing of Multiple Jets With a Confined Subsonic Crossflow: Part II—Opposed Rows of Orifices in Rectangular Ducts
(The American Society of Mechanical Engineers (ASME), 1999)This paper summarizes experimental and computational results on the mixing of opposed rows of jets with a confined subsonic crossflow in rectangular ducts. The studies from which these results ... -
Reduction of Nitric Oxide in Diesel Exhaust With the Addition of Methylamine
(The American Society of Mechanical Engineers (ASME), 1999)A Chemical gas-phase process capable to reduce the nitric oxide in diesel engine exhaust was studied. In this process, monomethylamine (CH3 NH2 ) was added to the exhaust gas in a molar ... -
Evaluating Alternative Internal Combustion Engines: 1950–1975
(The American Society of Mechanical Engineers (ASME), 1999)GMR (General Motors Research Laboratories, now GM R&D Center) has long sought ways to improve automotive combustion engines. Following World War II, considerable effort was also devoted to ... -
Prediction of Resonant Response of Shrouded Blades With Three-Dimensional Shroud Constraint
(The American Society of Mechanical Engineers (ASME), 1999)In this paper, the three-dimensional shroud contact kinematics of a shrouded blade system is studied. The assumed blade motion has three components, namely axial, tangential, and radial components, ... -
Past Experiences With Automotive External Combustion Engines
(The American Society of Mechanical Engineers (ASME), 1999)GMR (General Motors Research Laboratories, now GM R&D Center) has a history of improving the internal combustion engine, especially as it relates to automotive use. During the quarter century ... -
Stability Analysis and Testing of a Train of Centrifugal Compressors for High Pressure Gas Injection
(The American Society of Mechanical Engineers (ASME), 1999)This paper describes the rotor dynamic stability analysis and the PTC-10 Class 1 test of a three body centrifugal compressor train for high pressure natural gas injection service. This train ...