Transactions of the ASME . Journal of engineering for gas turbines and power, Vol. 134 N° 4. Journal of engineering for gas turbines and power: Transactions of the ASME - Avril 2012
| Titre : | Transactions of the ASME . Journal of engineering for gas turbines and power, Vol. 134 N° 4. Journal of engineering for gas turbines and power: Transactions of the ASME - Avril 2012 |
| Type de document : | Bulletin |
| Paru le : | 12/06/2012 |
Dépouillements
Article : texte imprimé
Ida Shafagh, Auteur ;
Kevin J. Hughes, Auteur ;
Elena Catalanotti, Auteur ;
Zhen Liu, Auteur
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Jet fuels currently in use in the aviation industry are exclusively kerosene-based. However, potential problems regarding security of supply, climate change, and increasing cost are becoming more significant, exacerbated by the rapidly growing d[...]
Article : texte imprimé
J. Fleck, Auteur ;
P. Griebel, Auteur ;
A.M. Steinberg, Auteur
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The use of highly reactive fuels in the lean premixed combustion systems employed in stationary gas turbines can lead to many practical problems, such as unwanted autoignition in regions not designed for combustion. In the present study, autoign[...]
Article : texte imprimé
C. Fureby, Auteur
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Present-day demands on combustion equipment are increasing the need for improved understanding and prediction of turbulent combustion. Large eddy simulation (LES), in which the large-scale flow is resolved on the grid, leaving only the small-sca[...]
Article : texte imprimé
Elizaveta M. Ivanova, Auteur ;
Berthold E. Noll, Auteur ;
Peter Griebel, Auteur
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Turbulent mixing and autoignition of H2-rich fuels at relevant reheat combustor operating conditions are investigated in the present numerical study. The flow configuration under consideration is a fuel jet perpendicularly injected into a crossf[...]
Article : texte imprimé
Lorenzo Tarchi, Auteur ;
Facchini, Bruno, Auteur ;
Francesco Maiuolo, Auteur
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An experimental analysis of a realistic engine cooling scheme was performed on a test article replicating a slot injection and an effusion array with a central large dilution hole. A test section consists of a rectangular cross-section duct with[...]
Article : texte imprimé
Oliver Lammel, Auteur ;
Michael Stöhr, Auteur ;
Peter Kutne, Auteur
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An experimental analysis of confined premixed turbulent methane/air and hydrogen/air jet flames is presented. A generic lab scale burner for high-velocity preheated jets equipped with an optical combustion chamber was designed and set up. The si[...]
Article : texte imprimé
Shengrong Zhu, Auteur ;
Sumanta Acharya, Auteur
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Lean premixed combustion is widely used to achieve a better compromise between nitric oxide (NOx) emissions and combustion efficiency (related to CO levels). However, combustor operation near the lean blowout (LBO) limit can render the flame uns[...]
Article : texte imprimé
Donald L. Simon, Auteur ;
Jeffrey B. Armstrong, Auteur ;
Sanjay Garg, Auteur
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An enhanced design methodology for minimizing the error in on-line Kalman filter-based aircraft engine performance estimation applications is presented in this paper. It specifically addresses the under-determined estimation problem, in which th[...]
Article : texte imprimé
Mustapha Chaker, Auteur ;
Cyrus B. Meher-Homji, Auteur
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There is a widespread interest in the application of gas turbine power augmentation technologies such as evaporative cooling and mechanical chilling in the mechanical drive and power generation markets. Very often, the selection of the design po[...]
Article : texte imprimé
Fault detection in complex mechanical systems such as wind turbine gearboxes remains challenging, even with the recently significant advancement of sensing and signal processing technologies. As first-principle models of gearboxes capable of ref[...]
Article : texte imprimé
Wieland Uffrecht, Auteur ;
André Günther, Auteur
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The heat transfer in rotating cavities, as found in the internal air system of gas turbines, is mainly governed by the flow passing through these specific machine structures. The core rotation ratio represents the circumferential velocity, and i[...]
Article : texte imprimé
B. H. Ertas, Auteur ;
A. Delgado, Auteur ;
G. Vannini, Auteur
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The following paper presents and compares rotordynamic force coefficients for three types of non-contact annular gas seals, which include a labyrinth (LABY), honeycomb (HC), and a fully partitioned damper seal (FPDS). These three annular seals r[...]
Article : texte imprimé
Jacob Laborenz, Auteur ;
Malte Krack, Auteur ;
Lars Panning, Auteur
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In the dynamics of turbomachinery, the mechanical damping of the blading has been the focus of research for the last decades to improve the dynamic performance in terms of high cycle fatigue issues. In addition, an increased mechanical damping c[...]
Article : texte imprimé
Alessandro Corsini, Auteur ;
Andrea Marchegiani, Auteur ;
Franco Rispoli, Auteur
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Induced draft fans extract coal fired boiler combustion products, including particles of un-burnt coal and ash. As a consequence of the particles, the axial fan blades' leading edges are subject to erosion. Erosion results in the loss of the bla[...]
Article : texte imprimé
Stefano Bianchi, Auteur ;
Alessandro Corsini, Auteur ;
Luca Mazzucco, Auteur
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Obtaining the right pitch in turbomachinery blading is crucial to efficient and successful operations. Engineers adjust the rotor's pitch angle to control the production or absorption of power. Even for low speed fans this is a promising tool. T[...]
Article : texte imprimé
Supakit Worasinchai, Auteur ;
Grant L. Ingram, Auteur ;
Robert G. Dominy, Auteur
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The purpose of this study was to investigate the effect of turbine starting capability on overall energy-production capacity. The investigation was performed through the development and validation of matlab/Simulink models of turbines. A novel a[...]
Article : texte imprimé
Naeim A. Henein, Auteur ;
Tamer Badawy, Auteur ;
Nilesh Rai, Auteur ;
Walter Bryzik, Auteur
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Advanced electronically controlled diesel engines require a feedback signal to the ECU to adjust different operating parameters and meet demands for power, better fuel economy and low emissions. Different types of in-cylinder combustion sensors [...]
Article : texte imprimé
Jean-Baptiste Millet, Auteur ;
Maroteaux, Fadila, Auteur ;
Fabrice Aubertin, Auteur
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The development of engine control unit (ECU) systems for series production requires an important validation phase. In order to reduce the number of time consuming and expensive vehicle tests, the ECU is validated using hardware in the loop (HIL)[...]
Article : texte imprimé
Stephen A. Long, Auteur ;
Stephen L Edney, Auteur ;
Patrick A Reiger, Auteur
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For the purpose of assessing combustion effects in a small gas turbine engine, there was a requirement to evaluate the rotating temperature and dynamic characteristics of the power turbine rotor module. This assessment required measurements be t[...]
Article : texte imprimé
Wei Xu, Auteur ;
Tong Wang, Auteur ;
Chuangang Gu, Auteur ;
Liang Ding, Auteur
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The holed casing treatment is a new type of casing treatment that has self-adaptability for a centrifugal compressor with unshrouded impeller. It was demonstrated experimentally and numerically that both the stall margin and the choked margin of[...]
Article : texte imprimé
V. Soloiu, Auteur ;
A. Covington, Auteur
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Considering the escalating cost of fossil fuels in correlation with the growing influence of sustainability, the need to seek new alternative fuels is increasing rapidly. This movement has lead researchers to look beyond the usual alternative fu[...]
Article : texte imprimé
Guillaume Becquin, Auteur ;
Matthew Lehar, Auteur
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As the demand grows for low-temperature waste heat recovery systems, organic Rankine cycles (ORCs), and other alternatives to traditional steam, Rankine cycles are becoming more common in industry. Although analytical tools exist that can predic[...]
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