Transactions of the ASME . Journal of engineering for gas turbines and power, Vol. 132 N° 3. Journal of engineering for gas turbines and power - Mars 2010
| Titre : | Transactions of the ASME . Journal of engineering for gas turbines and power, Vol. 132 N° 3. Journal of engineering for gas turbines and power - Mars 2010 |
| Type de document : | Bulletin |
| Paru le : | 04/11/2010 |
Dépouillements
Article : texte imprimé
Niall R. McGlashan, Auteur ;
Peter R. N. Childs, Auteur ;
Andrew L. Heyes, Auteur
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A cycle capable of generating both hydrogen and power with “inherent” carbon capture is proposed and evaluated. The cycle uses chemical looping combustion to perform the primary energy release from a hydrocarbon, producing an exhaust of CO. This[...]
Article : texte imprimé
Donald L. Simon, Auteur ;
Sanjay Garg, Auteur
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A linear point design methodology for minimizing the error in on-line Kalman filter-based aircraft engine performance estimation applications is presented. This technique specifically addresses the underdetermined estimation problem, where there[...]
Article : texte imprimé
Holger Lipowsky, Auteur ;
Stephan Staudacher, Auteur ;
Michael Bauer, Auteur
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The performance of gas turbines degrades over time due to deterioration mechanisms and single fault events. While deterioration mechanisms occur gradually, single fault events are characterized by occurring accidentally. In the case of single ev[...]
Article : texte imprimé
Fabrice Giuliani, Auteur ;
Thomas Leitgeb, Auteur ;
Andreas Lang, Auteur
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Laser vibrometry (LV) is originally a laser-based, line-of-sight measurement technique dedicated to the analysis of surface vibrations. It was lately adapted at TU Graz for monitoring the stability of an air-methane flame (Giuliani, et al., 2006[...]
Article : texte imprimé
Gang Xu, Auteur ;
HongGuang Jin, Auteur ;
YongPing Yang, Auteur
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In this paper, we have proposed a novel coal-based hydrogen production system with low CO2 emission. In this novel system, a pressure swing adsorption H2 production process and a CO2 cryogenic capture process are well integrated to gain comprehe[...]
Article : texte imprimé
Britta Laux, Auteur ;
Sebastian Piegert, Auteur ;
Joachim Rösler, Auteur
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High-temperature diffusion brazing is a very important technology for filling cracks in components from single-crystalline nickel-base superalloys as used in aircraft engines and stationary gas turbines: Alloys, which are similar to the base mat[...]
Article : texte imprimé
Lei Fu, Auteur ;
Yan Shi, Auteur ;
Qinghua Deng, Auteur
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For millimeter-scale microturbines, the principal challenge is to achieve a design scheme to meet the aerothermodynamics, geometry restriction, structural strength, and component functionality requirements while in consideration of the applicabl[...]
Article : texte imprimé
M. Morini, Auteur ;
M. Pinelli, Auteur ;
P. R. Spina, Auteur
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Gas turbine operating state determination consists of the assessment of the modification due to deterioration and fault of performance and geometric data characterizing machine components. One of the main effects of deterioration and fault is th[...]
Article : texte imprimé
Bugra H. Ertas, Auteur ;
Massimo Camatti, Auteur ;
Gabriele Mariotti, Auteur
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One type of test performed for evaluating bearings for application into turbomachinery is the synchronous bearing response to rotor imbalance. This paper presents rotordynamic tests on a rotor system using a 70 mm diameter damped gas bearing rea[...]
Article : texte imprimé
Luis San Andrés, Auteur ;
Ash Maruyama, Auteur ;
Kostandin Gjika, Auteur
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Turbochargers (TCs) aid to produce smaller and more fuel-efficient passenger vehicle engines with power outputs comparable to those of large displacement engines. This paper presents further progress on the nonlinear dynamic behavior modeling of[...]
Article : texte imprimé
Luis San Andrés, Auteur ;
Thomas Abraham Chirathadam, Auteur ;
Tae Ho Kim, Auteur
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Engineered metal mesh foil bearings (MMFBs) are a promising low cost bearing technology for oil-free microturbomachinery. In a MMFB, a ring shaped metal mesh provides a soft elastic support to a smooth arcuate foil wrapped around a rotating shaf[...]
Article : texte imprimé
Philip Bonello, Auteur ;
Pham Minh Hai, Auteur
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The computation of the unbalance vibration response of aero-engine assemblies fitted with nonlinear bearings requires the retention of a very large number of modes for reliable results. This renders most previously proposed nonlinear solvers uns[...]
Article : texte imprimé
A comparison of the different methods of using jatropha oil as fuel in a compression ignition engine
M. Senthil Kumar, Auteur ;
A. Ramesh, Auteur ;
B. Nagalingam, Auteur
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Different methods to improve the performance of a jatropha oil based compression ignition engine were tried and compared. A single cylinder water-cooled, direct injection diesel engine was used. Base data were generated with diesel and neat jatr[...]
Article : texte imprimé
A. Beccari, Auteur ;
S. Beccari, Auteur ;
E. Pipitone, Auteur
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It is well known that the spark advance is one of the most important parameters influencing the efficiency of a spark ignition engine. A change in this parameter causes a shift in the combustion phase, whose optimal position, with respect to the[...]
Article : texte imprimé
Christopher Depcik, Auteur
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This paper enhances an earlier publication by including the concentration equations of motion into the area-conserved one-dimensional based diesel particulate filter model. A brief historical review of the species equations is accomplished to de[...]
Article : texte imprimé
Hailin Li, Auteur ;
Ghazi A. Karim, Auteur ;
A. Sohrabi, Auteur
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The knock and combustion characteristics of CO, H2, CH4, and their mixtures were determined experimentally in a variable compression ratio spark ignition (SI) cooperative fuel research (CFR) engine. The significant effects of gaseous fuel mixtur[...]
Article : texte imprimé
Moussa Diaby, Auteur ;
Michel Sablier, Auteur ;
Anthony Le Negrate, Auteur
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On the basis of ongoing research conducted on the clarification of processes responsible for lubricant degradation in the environment of piston grooves in exhaust gas recirculation (EGR) diesel engines, an experimental investigation was aimed to[...]
Article : texte imprimé
David V. Colameco, Auteur ;
Kostadin N. Ivanov, Auteur ;
Rian H. Prinsloo, Auteur
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The resurgence of high temperature reactor (HTR) technology has prompted the development and application of modern calculation methodologies, many of which are already utilized in the existing power reactor industry, to HTR designs. To this end,[...]
Article : texte imprimé
Mohamed S. El-Genk, Auteur ;
Jean-Michel Tournier, Auteur
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The performance of very high temperature reactor plants with direct and indirect closed Brayton cycles (CBCs) is compared and the effects of the molecular weight of the CBC working fluid on the number of stages and sizes of the axial flow, singl[...]
Article : texte imprimé
Chang H. Oh, Auteur ;
Eung S. Kim, Auteur ;
Mike Patterson, Auteur
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The next generation nuclear plant (NGNP), a very high temperature gas-cooled reactor (VHTR) concept, will provide the first demonstration of a closed-loop Brayton cycle at a commercial scale, producing a few hundred megawatts of power in the for[...]
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