Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 5421-5440 of 9564
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Parametric Performance of Combined-Cogeneration Power Plants With Various Power and Efficiency Enhancements
(The American Society of Mechanical Engineers (ASME), 2005)The design-point performance characteristics of a wide variety of combined-cogeneration power plants, with different amounts of supplementary firing (or no supplementary firing), different amounts ... -
Flame Ionization Sensor Integrated Into a Gas Turbine Fuel Nozzle
(The American Society of Mechanical Engineers (ASME), 2005)Recent advances in lean premix gas turbine combustion have focused primarily on increasing thermodynamic efficiency, reducing emissions, and minimizing combustion dynamics. The practical limitation ... -
Heat Transfer Measurements Using Liquid Crystals in a Preswirl Rotating-Disk System
(The American Society of Mechanical Engineers (ASME), 2005)Preswirl nozzles are often used in gas turbines to deliver the cooling air to the turbine blades through receiver holes in a rotating disk. The distribution of the local Nusselt number, Nu, ... -
Direct-Transfer Preswirl System: A One-Dimensional Modular Characterization of the Flow
(The American Society of Mechanical Engineers (ASME), 2005)In high-efficiency gas turbine engines, the cooling air for the high-pressure turbine stage is expanded through stationary preswirl nozzles, transferred through the preswirl chamber, and delivered ... -
Application of CFD Analysis for Rotating Machinery—Part I: Hydrodynamic, Hydrostatic Bearings and Squeeze Film Damper
(The American Society of Mechanical Engineers (ASME), 2005)The traditional method for bearing and damper analysis usually involves a development of rather complicated numerical calculation programs that may just focus on a simplified and specific physical ... -
Cooling Tower Performance Evaluation: Merkel, Poppe, and e-NTU Methods of Analysis
(The American Society of Mechanical Engineers (ASME), 2005)The heat rejected and water evaporated in mechanical and natural draft cooling towers are critically evaluated by employing the Merkel, Poppe, and e–number-of-transfer-units (e-NTU) methods of ... -
Crack Detection in a Rotor Dynamic System by Vibration Monitoring—Part I: Analysis
(The American Society of Mechanical Engineers (ASME), 2005)Many practical rotor dynamic systems contain shaft/rotor elements that are highly susceptible to transverse cross-sectional cracks due to fatigue. The early detection of mechanical malfunction that ... -
A Flight Simulation Vision for Aeropropulsion Altitude Ground Test Facilities
(The American Society of Mechanical Engineers (ASME), 2005)Testing of a gas turbine engine for aircraft propulsion applications may be conducted in the actual aircraft or in a ground-test environment. Ground test facilities simulate flight conditions ... -
Parametric Study on Economic Feasibility of Microturbine Cogeneration Systems by an Optimization Approach
(The American Society of Mechanical Engineers (ASME), 2005)Economic feasibility of microturbine cogeneration systems is investigated by analyzing relationships between the optimal number of microturbine units and the maximum energy demands under various ... -
Resistance Reduction in Pulsating Turbulent Pipe Flows
(The American Society of Mechanical Engineers (ASME), 2005)The paper describes the effects of forced harmonic oscillations of fixed frequency and amplitudes in the range Λ=Um/Ub=1–11 on the characteristics of a turbulent pipe flow with a bulk Reynolds ... -
Cogeneration System Simulation and Control to Meet Simultaneous Power, Heating, and Cooling Demands
(The American Society of Mechanical Engineers (ASME), 2005)Gas turbines are projected to meet increasing power demand throughout the world. Cogeneration plants hold the promise of increased efficiency at acceptable cost. In a general case, a cogen plant ... -
Economic and Performance Evaluation of Heat Sink Options in Combined Cycle Applications
(The American Society of Mechanical Engineers (ASME), 2005)This paper is a guideline to selecting the most appropriate technology for the power plant heat sink based on water availability, site location, and wastewater disposal requirements. The paper ... -
High Temperature Characterization of a Radial Magnetic Bearing for Turbomachinery
(The American Society of Mechanical Engineers (ASME), 2005)Open loop, experimental force and power measurements of a radial, redundant-axis, magnetic bearing at temperatures to 1000°F (538°C) and rotor speeds to 15,000 rpm along with theoretical ... -
Feasibility Analysis for the Rotordynamic Performance of API617
(The American Society of Mechanical Engineers (ASME), 2005)The rotordynamic performance of API 617 standards provides two primary requirements. First, the standard stipulates system damping near the expected operating speed range. Second, the standard ... -
Experimental Investigation of the Interaction of Unsteady Flow With Combustion
(The American Society of Mechanical Engineers (ASME), 2005)In order to reduce the dimensions of the combustor, swirl stabilized flames are used in heavy duty gas turbines. In our recent investigation of the swirling flow at a single heavy duty gas ... -
Adaptive Myriad Filter for Improved Gas Turbine Condition Monitoring Using Transient Data
(The American Society of Mechanical Engineers (ASME), 2005)The removal of noise and outliers from measurement signals is a major problem in jet engine health monitoring. In this study, we look at the myriad filter as a substitute for the moving ... -
Measurement of Smoke Particle Size and Distribution Within a Gas Turbine Combustor
(The American Society of Mechanical Engineers (ASME), 2005)The objective of the work described in this paper was to identify a method of making measurements of the smoke particle size distribution within the sector of a gas turbine combustor, using ... -
Forced Low-Frequency Spray Characteristics of a Generic Airblast Swirl Diffusion Burner
(The American Society of Mechanical Engineers (ASME), 2005)The low-frequency response of the spray from a generic airblast diffusion burner with a design typical of an engine system has been investigated as part of an experimental study to describe ... -
Application of “H Gas Turbine” Design Technology to Increase Thermal Efficiency and Output Capability of the Mitsubishi M701G2 Gas Turbine
(The American Society of Mechanical Engineers (ASME), 2005)Mitsubishi completed design development and verification load testing of a steam-cooled M501H gas turbine at a combined cycle power plant at Takasago, Japan in 2001. Several advanced technologies ... -
Diagnosis for Loose Blades in Gas Turbines Using Wavelet Analysis
(The American Society of Mechanical Engineers (ASME), 2005)The application of wavelet analysis to diagnose loose blades condition in gas turbines is examined in this paper. Experimental studies were undertaken to simulate loose blades condition occurring ...