Transactions of the ASME . Journal of engineering for gas turbines and power, Vol. 133 N° 4. Journal of engineering for gas turbines and power - Avril 2011
| Titre : | Transactions of the ASME . Journal of engineering for gas turbines and power, Vol. 133 N° 4. Journal of engineering for gas turbines and power - Avril 2011 |
| Type de document : | Bulletin |
| Paru le : | 12/02/2012 |
Dépouillements
Article : texte imprimé
Jeanne G. Mason, Auteur ;
Philip Chow, Auteur ;
Dan M. Fuleki, Auteur
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The aviation industry has now connected a number of engine power-loss events to the ingestion of atmospheric ice crystals. Ice crystals are believed to penetrate to and eventually accrete on surfaces in the engine core where local air temperatur[...]
Article : texte imprimé
N. Sinha, Auteur ;
J. Erwin, Auteur ;
C. Kannepalli, Auteur
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A practical framework for predicting jet structure and noise from military aircraft is described, which is developmental and has been examined for some fundamental jet flow problems. The framework currently utilizes Reynolds-averaged Navier Stok[...]
Article : texte imprimé
Martin Hauser, Auteur ;
Manuel Lorenz, Auteur ;
Thomas Sattelmayer, Auteur
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Modern large gas turbines for power generation have multiple burners, which are distributed around the circumference of the engine and which generate flames in combustors of either annular or can-annular geometry. In both cases, considering only[...]
Article : texte imprimé
Anthony G. Sheard, Auteur ;
Alessandro Corsini, Auteur ;
Stefano Bianchi, Auteur
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This study describes the development of a novel stall-detection methodology for low-speed axial-flow fans. Because aerodynamic stall is a major potential cause of mechanical failure in axial fans, effective stall-detection techniques have had wi[...]
Article : texte imprimé
Nikolett Sipöcz, Auteur ;
Klas Jonshagen, Auteur ;
Mohsen Assadi, Auteur
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The European electric power industry has undergone considerable changes over the past two decades as a result of more stringent laws concerning environmental protection along with the deregulation and liberalization of the electric power market.[...]
Article : texte imprimé
S. Can Gülen, Auteur
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The key product of a combined cycle power plant is electric power generated for industrial, commercial, and residential customers. In that sense, the key performance metric that establishes the pecking order among thousands of existing, new, old[...]
Article : texte imprimé
H. M. Tawancy, Auteur ;
Luai M. Al Hadhrami, Auteur
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Titanium is a key element in nickel-base superalloys needed with aluminum to achieve the desired volume fraction of the strengthening gamma[prime]-phase. However, depending upon its concentration, titanium can degrade the adherence of aluminum o[...]
Article : texte imprimé
Mariusz Bielawski, Auteur ;
Kuiying Chen, Auteur
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A computational method to evaluate fracture toughness of prospective erosion-resistant coatings using a combination of first-principles density functional theory (DFT) calculations and fracture mechanics is proposed. Elastic coefficients C11, C1[...]
Article : texte imprimé
Nagaraja S. Rudrapatna, Auteur ;
Benjamin H. Peterson, Auteur ;
Daniel Greving, Auteur
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Modern gas turbine combustors are made of high temperature alloys, employ effusion cooling, and are protected by a thermal barrier coating (TBC). Gas turbine combustor failure modes, such as TBC spallation, cracking, and distortion resulting fro[...]
Article : texte imprimé
W. P. J. Visser, Auteur ;
S. A. Shakariyants, Auteur ;
M. Oostveen, Auteur
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Combined heat and power (CHP) concepts for small-scale distributed power generation offer significant potential for saving energy and reducing CO2 emissions. Microturbines are an interesting candidate for small CHP systems with advantages in ter[...]
Article : texte imprimé
Wendy J. Matthews, Auteur ;
Karren L. More, Auteur ;
Larry R. Walker, Auteur
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The Capstone C65 Microturbine primary surface recuperator (PSR) core has been manufactured from Haynes alloy HR-120 since 2005 (Microturbine is a registered trademark of Capstone Turbine Corporation; Haynes and HR-120 are trademarks of Haynes In[...]
Article : texte imprimé
Donghyun Lee, Auteur ;
Daejong Kim, Auteur
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Air foil bearings (AFBs) have been recognized as the most promising for oil-free turbomachinery. However, the applications of AFBs to the relatively large turbomachinery have many technical challenges due to limited load capacity and wear during[...]
Article : texte imprimé
Christopher DellaCorte, Auteur ;
Robert J. Bruckner, Auteur
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The application of oil-free technologies (foil gas bearings, solid lubricants, and advanced analysis and predictive modeling tools) to advanced turbomachinery has been underway for several decades. During that time, full commercialization has oc[...]
Article : texte imprimé
Sergio Filippi, Auteur ;
Peter J. Torvik, Auteur
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Ceramic coatings applied by air plasma spray or electron beam techniques as thermal barrier coatings or to improve the erosion or corrosion resistance of blades in gas turbine engines are found to add damping to the system. However, such coating[...]
Article : texte imprimé
Rotordynamic force prediction of centrifugal compressor impellers using computational fluid dynamics
J. Jeffrey Moore, Auteur ;
David L. Ransom, Auteur ;
Flavia Viana, Auteur
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The energy industry depends on centrifugal compressors to produce, process, reinject, and transport many different gases. Centrifugal compressors use one or more impellers to impart momentum to the flowing gas and, thereby, produce an increase i[...]
Article : texte imprimé
Mostafa H. Sharqawy, Auteur ;
John H. Lienhard, V, Auteur ;
Syed M. Zubair, Auteur
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Seawater cooling towers have been used since the 1970s in power generation and other industries, so as to reduce the consumption of freshwater. The salts in seawater are known to create a number of operational problems, including salt deposition[...]
Article : texte imprimé
Michael J. Bergin, Auteur ;
Ettore Musu, Auteur ;
Sage Kokjohn, Auteur
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Computational fluid dynamic simulations using the AVL FIRE and KIVA 3V codes were performed to examine commonly accepted techniques and assumptions used when simulating direct injection diesel engines. Simulations of a steady-state impulse swirl[...]
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