Transactions of the ASME . Journal of engineering for gas turbines and power, Vol. 132 N° 6. Journal of engineering for gas turbines and power - Juin 2010
| Titre : | Transactions of the ASME . Journal of engineering for gas turbines and power, Vol. 132 N° 6. Journal of engineering for gas turbines and power - Juin 2010 |
| Type de document : | Bulletin |
| Paru le : | 06/09/2011 |
Dépouillements
Article : texte imprimé
Simone Colantoni, Auteur ;
Stefania Della Gatta, Auteur ;
Roberto De Prosperis, Auteur
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Alternative resources, such as biomass, and municipal and industrial waste are being considered as a source for the production of syngas to replace natural gas as a power turbine fuel. Pyrolysis of biomass produces a syngas composed primarily of[...]
Article : texte imprimé
Jochen Rupp, Auteur ;
Jon Carrotte, Auteur ;
Adrian Spencer, Auteur
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Gas turbine combustion systems are prone to thermo-acoustic instabilities, and this is particularly the case for new low emission lean burn type systems. The presence of such instabilities is basically a function of the unsteady heat release wit[...]
Article : texte imprimé
Martin Lauer, Auteur ;
Thomas Sattelmayer, Auteur
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The determination of the heat release in technical flames is commonly done via bandpass filtered chemiluminescence measurements in the wavelength range of OH* or CH* radicals, which are supposed to be a measure for the heat release rate. However[...]
Article : texte imprimé
Thomas Komarek, Auteur ;
Wolfgang Polifke, Auteur
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Combustion instabilities represent a long known problem in combustion technology. The complex interactions between acoustics and turbulent swirling flames are not fully understood yet, making it very difficult to reliably predict the stability o[...]
Article : texte imprimé
Michael T. Timko, Auteur ;
Scott C. Herndon, Auteur ;
Ezra C. Wood, Auteur
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The potential human health and environmental impacts of aircraft gas turbine engine emissions during normal airport operation are issues of growing concern. During the JETS/Aircraft Particle Emissions eXperiment(APEX)-2 and APEX-3 field campaign[...]
Article : texte imprimé
Michael T. Timko, Auteur ;
Timothy B. Onasch, Auteur ;
Megan J. Northway, Auteur
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The characterization of volatile and nonvolatile particle materials present in gas turbine exhaust is critical for accurate estimation of the potential impacts of airport activities on local air quality, atmospheric processes, and climate change[...]
Article : texte imprimé
Marcus Herrmann, Auteur
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This paper presents numerical simulation results of the primary atomization of a turbulent liquid jet injected into a gaseous crossflow. Simulations are performed using the balanced force refined level set grid method. The phase interface during[...]
Article : texte imprimé
Dirk Riechelmann, Auteur ;
Masahiro Uchida, Auteur
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Efficient turbulent combustion models are typically designed for the numerical simulation of two-stream problems, namely, the combustion of fuel in air. There are applications, however, where large amounts of a diluent such as water steam or rec[...]
Article : texte imprimé
Nikolett Sipöcz, Auteur ;
Mohsen Assadi, Auteur
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As carbon capture and storage technology has grown as a promising option to significantly reduce CO2 emissions, system integration and optimization claim an important and crucial role. This paper presents a comparative study of a gas turbine cyc[...]
Article : texte imprimé
Ramón F. Colmenares Quintero, Auteur ;
Rob Brink, Auteur ;
Stephen Ogaji, Auteur
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Recently a considerable effort was made to understand the gas- and thermodynamics of wave rotor combustion technology. Pressure-gain combustors potentially have superior performance over conventional combustors due to their unsteady flow behavio[...]
Article : texte imprimé
Eric Liese, Auteur
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This paper examines the arrangement of a solid oxide fuel cell (SOFC) within a coal gasification cycle, this combination generally being called an integrated gasification fuel cell cycle. This work relies on a previous study performed by the Nat[...]
Article : texte imprimé
Ernst Schneider, Auteur ;
Saba Demircioglu Bussjaeger, Auteur ;
Susana Franco, Auteur
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Due to compressor fouling, gas turbine efficiency decreases over time, resulting in decreased power output of the plant. To counteract the effects of compressor fouling, compressor on-line and off-line washing procedures are used. The effectiven[...]
Article : texte imprimé
Daniel McGuire, Auteur ;
Huang, Xiao, Auteur ;
Doug Nagy, Auteur
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Wide gap brazing (WGB) is a cost effective and reliable means to repair gas turbine hot section components with defect sizes exceeding 0.3 mm. However, it has been shown that WGB joints of nickel-based superalloys suffer from reduced ductility a[...]
Article : texte imprimé
Luciana M. Oliveira, Auteur ;
Marco A. R. Nascimento, Auteur ;
Genésio J. Menon, Auteur
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Environment and energy are driven forces of human survival and development. Nowadays the use of primary energy comprises mostly mineral fuels, which have limited reserves and whose utilization may cause serious environmental impacts. Attention h[...]
Article : texte imprimé
Experimental evaluation of the transient behavior of a compressor station during emergency shutdowns
J. Jeffrey Moore, Auteur ;
Rainer Kurz, Auteur ;
Augusto Garcia-Hernandez, Auteur
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The transient behavior of compressor stations, particularly under rapidly changing conditions, is of vital interest to operators. Predicting transient behavior is an important factor in avoiding damage during events such as emergency shutdowns. [...]
Article : texte imprimé
Rainer Kurz, Auteur ;
Klaus Brun, Auteur
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An analytical model is generated that allows the evaluation of the compression system. It is also used to derive general rules for optimizing a system. Several strategies for the compression system (single compressors, multiple compressors with [...]
Article : texte imprimé
Shengru Kong, Auteur ;
Xin Yan, Auteur ;
Shinnosuke Obi, Auteur
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Three-dimensional Reynolds-averaged Navier–Stokes (RANS) solutions from CFX were utilized to investigate the leakage flow characteristics in the labyrinth honeycomb seal of steam turbines. At first, the accuracy and reliability of the utilized R[...]
Article : texte imprimé
E. P. Petrov, Auteur
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A method has been developed for high-accuracy analysis of forced response levels for mistuned bladed disks vibrating in gas flow. Aerodynamic damping, the interaction of vibrating blades through gas flow, and the effects of structural and aerody[...]
Article : texte imprimé
Daren Yu, Auteur ;
Yanfeng Duan, Auteur ;
Jinfu Liu, Auteur
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It is noticed in a few steam turbines that there are a pad temperature rise of more than 10°C and a radial journal movement of more than 50 µm in the bearings adjacent to control stage when they operate under partial arc admission at 60–80% of [...]
Article : texte imprimé
J. D. Holdeman, Auteur ;
J. R. Clisset, Auteur ;
J. P. Moder, Auteur
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The primary purpose of this study was to show the expected results for cases of single and opposed rows of jets from alternating large and small round holes. Previous publications demonstrated that the NASA empirical model gave results that were[...]
Article : texte imprimé
Avinash Kumar Agarwal, Auteur ;
Atul Dhar, Auteur
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The methyl esters of vegetable oils known as biodiesel are becoming increasingly popular because of their low environmental impact and potential as a green alternative fuel for diesel engines. Methyl ester of rice-bran oil (RBOME) is prepared th[...]
Article : texte imprimé
J. R. Beisheim, Auteur ;
G. B. Sinclair, Auteur
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Dovetail attachments in gas turbines are subject to fatigue failures. These fatigue failures occur as a result of large fluctuations in hoop stresses near the edges of contact in attachments. The high hoop stresses available for fluctuating are,[...]
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