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1-20 of 244
Keywords: Turbines
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2025, 147(5): 051014.
Paper No: GTP-24-1543
Published Online: November 22, 2024
...Alexander Trafford; Sina Stapelfeldt This paper reports the results of computational studies of the effect of combustor exit temperature distortions on low engine order (LEO) forced response of a high pressure turbine (HPT). Forced response of this kind occurs at frequencies below the stator vane...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2024, 146(8): 081011.
Paper No: GTP-23-1570
Published Online: February 8, 2024
... dramatically in terms of number of starts, operating hours per annum, and variation in load level. This results in greater thermal transients on operational equipment leading to an increase in Low Cycle Fatigue damage. To ensure the continued integrity of the steam turbine components, it is essential to assess...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2019, 141(7): 071004.
Paper No: GTP-18-1449
Published Online: January 11, 2019
... computational heat transfer internal flow jets swirling turbines In order to further increase the efficiency and power, gas temperature at gas turbine inlet becomes extremely high which is far beyond the thermal limit of the material. Thus, cooling technique is critical to protect the blade...
Journal Articles
Koichi Yonezawa, Tomoki Kagayama, Masahiro Takayasu, Genki Nakai, Kazuyasu Sugiyama, Katsuhiko Sugita, Shuichi Umezawa
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 012602.
Paper No: GTP-17-1646
Published Online: September 14, 2018
...Koichi Yonezawa; Tomoki Kagayama; Masahiro Takayasu; Genki Nakai; Kazuyasu Sugiyama; Katsuhiko Sugita; Shuichi Umezawa Deteriorations of nozzle guide vanes (NGVs) and rotor blades of a steam turbine through a long-time operation usually decrease a thermal efficiency and a power output...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 011013.
Paper No: GTP-18-1333
Published Online: September 14, 2018
... reduces the lifetime. To improve the ability for fast start-ups, information about the metal temperature inside the rotor and the casing are crucial. Thus, an efficient calculation approach is required which enables the prediction of the temperature distribution in a whole multistage steam turbine...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 011005.
Paper No: GTP-18-1283
Published Online: September 14, 2018
...Piotr Łuczyński; Dennis Toebben; Manfred Wirsum; Wolfgang F. D. Mohr; Klaus Helbig In pursuit of flexibility improvements, General Electric has developed a product to warm-keep high/intermediate pressure steam turbines using hot air. In order to optimize the warm-keeping operation and to gain...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 011012.
Paper No: GTP-18-1323
Published Online: September 14, 2018
... pressure or inlet temperature. Certain quantities make this relationship difficult to determine, such as tip clearance, which makes the proposed methodology unable to determine the relationship between tip clearance and heat flux. The final aim of turbine heat transfer experimentation is to retrieve...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 011002.
Paper No: GTP-18-1311
Published Online: September 7, 2018
...J. Saavedra; G. Paniagua The aerothermal performance of the low-pressure turbine in unmanned aerial vehicles is significantly abated at high altitude, due to boundary layer separation. Different flow control strategies have been proposed to prevent boundary layer separation, such as dielectric...
Journal Articles
G. Paniagua, D. Cuadrado, J. Saavedra, V. Andreoli, T. Meyer, J. P. Solano, R. Herrero, S. Meyer, D. Lawrence
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 012601.
Paper No: GTP-18-1170
Published Online: August 31, 2018
...G. Paniagua; D. Cuadrado; J. Saavedra; V. Andreoli; T. Meyer; J. P. Solano; R. Herrero; S. Meyer; D. Lawrence Following three decades of research in short duration facilities, Purdue University has developed an alternative turbine facility in view of the modern technology in computational fluid...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2018, 140(12): 121504.
Paper No: GTP-17-1628
Published Online: August 20, 2018
...Alessandro Bo; Eugenio Giacomazzi; Giuseppe Messina; Antonio Di Nardo The work in this paper investigates on how a fuel flexible microgas turbine (MGT) combustion chamber, developed by ANSALDO ENERGIA and installed in a Turbec T100 P MGT, can operate when transferring from natural gas (NG...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2018, 140(12): 121003.
Paper No: GTP-18-1285
Published Online: August 20, 2018
.... The application of the method is demonstrated by means of the flow through a well-known steam turbine cascade test case. Predicted variations of loss coefficients for different operating conditions can be confirmed by experimental observations. For the investigated test cases, the thermodynamic relaxation...
Journal Articles
Joseph Saverin, Giacomo Persico, David Marten, David Holst, George Pechlivanoglou, Christian Oliver Paschereit, Vincenzo Dossena
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2018, 140(12): 122601.
Paper No: GTP-17-1608
Published Online: August 6, 2018
...Joseph Saverin; Giacomo Persico; David Marten; David Holst; George Pechlivanoglou; Christian Oliver Paschereit; Vincenzo Dossena The evolution of the wake of a wind turbine contributes significantly to its operation and performance, as well as to those of machines installed in the vicinity...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2018, 140(12): 122501.
Paper No: GTP-18-1005
Published Online: August 6, 2018
... conversion Gas turbine technology Heat recovery Modeling Power systems Temperature Thermal Thermodynamics Turbines Two-phase Vibration Over the past years, the consumption of fossil fuel continues to grow [ 1 ] due to the increase in energy demand in both heat and electricity forms...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2018, 140(12): 122801.
Paper No: GTP-18-1084
Published Online: August 6, 2018
.... 43 – 52 https://ieeexplore.ieee.org/document/4077333/ . [2] Katranik , T. , Trenc , F. , Medica , V. , and Markic , S. , 2005 , “ An Analysis of Turbocharged Diesel Engine Dynamic Response Improvement by Electric Assisting Systems ,” ASME J. Eng. Gas Turbines Power , 127 ( 4...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2018, 140(11): 112604.
Paper No: GTP-17-1218
Published Online: July 31, 2018
... . Manuscript received June 16, 2017; final manuscript received February 19, 2018; published online July 31, 2018. Assoc. Editor: Riccardo Da Soghe. 16 06 2017 19 02 2018 Aerodynamics Computational fluid dynamics Design optimization Experimental Turbines The results...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2018, 140(11): 112502.
Paper No: GTP-18-1169
Published Online: July 12, 2018
...Kenneth Clark; Michael Barringer; David Johnson; Karen Thole; Eric Grover; Christopher Robak Secondary air is bled from the compressor in a gas turbine engine to cool turbine components and seal the cavities between stages. Unsealed cavities can lead to hot gas ingestion, which can degrade critical...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2018, 140(11): 112601.
Paper No: GTP-17-1369
Published Online: June 27, 2018
...Chirag Trivedi This work investigates the unsteady pressure fluctuations and inception of vortical flow in a hydraulic turbine during speed-no-load conditions. At speed-no-load (SNL), the available hydraulic energy dissipates to the blades without producing an effective torque. This results in high...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2018, 140(10): 102502.
Paper No: GTP-17-1421
Published Online: June 25, 2018
...Wen Li; Xing Wang; Xuehui Zhang; Xinjing Zhang; Yangli Zhu; Haisheng Chen It is a common practice to use closed impeller in radial inflow turbine against the flow leakage from tip clearance of impellers, especially in small volume flow condition. It utilizes labyrinths between the shroud...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2018, 140(10): 102602.
Paper No: GTP-17-1455
Published Online: June 25, 2018
... turbochargers (TC) are especially susceptible to this dynamic and are often equipped with variable geometry turbines (VGT) to mitigate some of this effect. Assisted boosting techniques that add power directly to the TC shaft from a power source that is independent of the engine have been shown to significantly...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2018, 140(9): 091703.
Paper No: GTP-17-1039
Published Online: June 15, 2018
...Martin T. White; Christos N. Markides; Abdulnaser I. Sayma In this paper, the effect of working-fluid replacement within an organic Rankine cycle (ORC) turbine is investigated by evaluating the performance of two supersonic stators operating with different working fluids. After designing the two...
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