Transactions of the ASME . Journal of engineering for gas turbines and power, Vol. 133 N° 2. Journal of engineering for gas turbines and power - Fevrier 2011
| Titre : | Transactions of the ASME . Journal of engineering for gas turbines and power, Vol. 133 N° 2. Journal of engineering for gas turbines and power - Fevrier 2011 |
| Type de document : | Bulletin |
| Paru le : | 12/02/2012 |
Dépouillements
Article : texte imprimé
Hsi-Wu Wong, Auteur ;
Zhenhong Yu, Auteur ;
Michael T. Timko, Auteur
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The experimental data and numerical modeling were utilized to investigate the effects of exhaust sampling parameters on the measurements of particulate matter (PM) emitted at the exit plane of gas-turbine engines. The results provide guidance fo[...]
Article : texte imprimé
Kyu Tae Kim, Auteur ;
Jong Guen Lee, Auteur ;
Bryan D. Quay, Auteur
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The nonlinear response of a swirl-stabilized flame to equivalence ratio oscillations was experimentally investigated in an atmospheric-pressure, high-temperature, lean-premixed model gas turbine combustor. To generate high-amplitude equivalence [...]
Article : texte imprimé
Brian Jones, Auteur ;
Jong Guen Lee, Auteur ;
Bryan D. Quay, Auteur
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The response of turbulent premixed flames to inlet velocity fluctuations is studied experimentally in a lean premixed, swirl-stabilized, gas turbine combustor. Overall chemiluminescence intensity is used as a measure of the fluctuations in the f[...]
Article : texte imprimé
An experimental arrangement for the investigation of auto-ignition of a pulsed CH4 jet in a coflow of hot exhaust gas from a laminar lean premixed H2/air flame at atmospheric pressure is presented. The ignition events were captured by high-speed[...]
Article : texte imprimé
Elizaveta M. Ivanova, Auteur ;
Berthold E. Noll, Auteur ;
Aigner, Manfred, Auteur
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This paper presents numerical simulations of turbulent mixing of a jet in crossflow. The test case is chosen to resemble scalar mixing processes in the premixing zones of gas turbine combustion chambers. Steady and unsteady simulations employing[...]
Article : texte imprimé
Massimo Masi, Auteur ;
Paolo Gobbato, Auteur ;
Andrea Toffolo, Auteur
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Proper cooling of the hot components and an optimal temperature distribution at the turbine inlet are fundamental targets for gas turbine combustors. In particular, the temperature distribution at the combustor discharge is a critical issue for [...]
Article : texte imprimé
Francesco Trasino, Auteur ;
Michele Bozzolo, Auteur ;
Loredana Magistri, Auteur
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This paper is focused on the performance of the 1 MW plant designed and developed by Rolls-Royce Fuel Cell Systems Limited. The system consists of a two stage turbogenerator coupled with pressure vessels containing the fuel cell stack, internal [...]
Article : texte imprimé
A. Andreini, Auteur ;
A. Bonini, Auteur ;
G. Caciolli, Auteur
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Due to the stringent cooling requirements of novel aero-engines combustor liners, a comprehensive understanding of the phenomena concerning the interaction of hot gases with typical coolant jets plays a major role in the design of efficient cool[...]
Article : texte imprimé
Mitsutoshi Okada, Auteur ;
Tohru Hisamatsu, Auteur ;
Terutaka Fujioka, Auteur
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A CoNiCrAlY-coated blade of an in-service gas turbine is analyzed, and a diffusion layer is formed along the boundary between the coating and the substrate due to the interdiffusion in the middle and tip of the blade. Such a layer is not observe[...]
Article : texte imprimé
Performance benefits of a portable hybrid micro-gas turbine power system for automotive applications
Fanos Christodoulou, Auteur ;
Panagiotis Giannakakis, Auteur ;
Anestis I. Kalfas, Auteur
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The lower fuel burn and pollutant emissions of hybrid electric vehicles give a strong motivation and encourage further investigations in this field. The know-how on hybrid vehicle technology is maturing, and the reliability of such power schemes[...]
Article : texte imprimé
Norihisa Anegawa, Auteur ;
Hiroyuki Fujiwara, Auteur ;
Osami Matsushita, Auteur
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As is well known, zero and one nodal diameter (k=0 and k=1) modes of a blade system interact with the shaft system. The former couples with torsional and/or axial shaft vibrations, and the latter with bending shaft vibrations. This paper address[...]
Article : texte imprimé
Aurélien Grolet, Auteur ;
Fabrice Thouverez, Auteur
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This work is devoted to the study of nonlinear dynamics of structures with cyclic symmetry under geometrical nonlinearity using the harmonic balance method (HBM). In order to study the influence of the nonlinearity due to large deflection of bla[...]
Article : texte imprimé
Sahinkaya, M. Necip, Auteur ;
Abulrub, Abdul-Hadi G., Auteur ;
Patrick S. Keogh, Auteur
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This paper describes an experimental assessment of the transient performance of a multi-objective adaptive approach to the control of flexible rotors. This is applicable to any arrangement of controllable bearings or actuators. In the case repor[...]
Article : texte imprimé
David N. Liliedahl, Auteur ;
Forrest L. Carpenter, Auteur ;
Paul G. A. Cizmas, Auteur
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A Reynolds-averaged Navier–Stokes (RANS) solver developed in-house was used to simulate grazing channel flow past single and multiple cavities. The objective of this investigation was to predict fluid instabilities in hole-pattern stator seals. [...]
Article : texte imprimé
Samuel A. Howard, Auteur ;
Luis San Andrés, Auteur
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Gas foil bearings offer several advantages over traditional bearing types that make them attractive for use in high-speed turbomachinery. They can operate at very high temperatures, require no lubrication supply (oil pumps, seals, etc.), exhibit[...]
Article : texte imprimé
E. C. Chan, Auteur ;
M. H. Davy, Auteur ;
G. de Simone, Auteur
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This paper outlines the development of a comprehensive numerical framework for the partially stratified charge (PSC) lean-burn natural gas engine. A 3D model of the engine was implemented to represent fluid motion and combustion. The spark ignit[...]
Article : texte imprimé
David R. Buttsworth, Auteur ;
Abdalla Agrira, Auteur ;
Ray Malpress, Auteur
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Simulation of internal combustion engine heat transfer using low-dimensional thermodynamic modeling often relies on quasisteady heat transfer correlations. However, unsteady thermal boundary layer modeling could make a useful contribution becaus[...]
Article : texte imprimé
Lisa Grande, Auteur ;
Bryan Villamere, Auteur ;
Leyland Allison, Auteur
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Supercritical water-cooled nuclear reactors (SCWRs) are a Generation IV reactor concept. SCWRs will use a light-water coolant at operating parameters set above the critical point of water (22.1 MPa and 374°C). One reason for moving from current [...]
Article : texte imprimé
Hiroyuki Sato, Auteur ;
Hirofumi Ohashi, Auteur ;
Yujiro Tazawa, Auteur
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The establishment of a safety evaluation method is one of the key issues for the nuclear hydrogen production demonstration since fundamental differences in the safety philosophy between nuclear plants and chemical plants exist. In the present st[...]
Article : texte imprimé
Jeffrey A. Benoit, Auteur ;
Charles Ellis, Auteur ;
Joseph Cook, Auteur
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The search for power plant sustainability options continues as regulating agencies exert more stringent industrial gas turbine emission requirements on operators. Purchasing power for resale, decomissioning current capabilities altogether, and r[...]
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