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Keywords: Thermal
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Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 011005.
Paper No: GTP-18-1283
Published Online: September 14, 2018
...; published online September 14, 2018. Editor: Jerzy T. Sawicki. 22 06 2018 03 07 2018 Heat transfer Temperature Thermal Turbines Unsteady The increasing share of renewable energy sources (RES) in electricity generation—especially in western European countries—exerts...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 011012.
Paper No: GTP-18-1323
Published Online: September 14, 2018
... uncertainty analysis of the two-step routine is included based on the value of the pulse of heat flux, the temperature measurement uncertainty, the thermal properties of the material, and the physical properties of the rotor casing. Manuscript received June 23, 2018; final manuscript received June 27...
Journal Articles
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
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2018, 140(12): 122801.
Paper No: GTP-18-1084
Published Online: August 6, 2018
.... 20 02 2018 26 03 2018 Computational fluid dynamics Energy storage systems Energy systems Engines Experimental Finite element Internal combustion engines Modeling Power Thermal Turbines Control systems Co- generation Hybridized and fully electrified boosting...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2018, 140(10): 102601.
Paper No: GTP-17-1004
Published Online: June 25, 2018
.... The degradations are flow capacity degradation and isentropic efficiency degradation. An engine model was created in Cranfield gas turbine performance and diagnostics software, pythia . Blade thermal and stress models were developed together with the Larson–Miller parameter (LMP) method for creep life analysis...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2018, 140(9): 091202.
Paper No: GTP-17-1383
Published Online: June 15, 2018
... efficiencies for both wet and combined cycles. We also show that when optimally used, nonreactive matter transfers, like water, provide an alternative, but not superior, thermal regeneration strategy to direct heat regeneration. Contributed by the Aircraft Engine Committee of ASME for publication...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2018, 140(7): 071501.
Paper No: GTP-17-1386
Published Online: April 10, 2018
... Evaporation Gas turbine technology Heat transfer Multiphase flows Particulate Phase change Thermal Two-phase Over 240 icing-related engine events have been recorded since 1990. Mason et al. [ 1 ] analyzed 46 of these events, many of which occurred at altitudes above 7000 m, the recognized upper...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2018, 140(3): 031901.
Paper No: GTP-17-1166
Published Online: October 17, 2017
... transfer functions to predict the disk's thermal response over a typical flight. The model uses only typically available full authority digital electronic control (FADEC) measurements to predict temperature with accuracy of ±30 K over the whole flight cycle. A Kalman filter has also been developed based...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2018, 140(2): 022604.
Paper No: GTP-17-1370
Published Online: October 3, 2017
... of methodological improvement are analyzed and proposed in the frame of an integrated approach for steam turbine components thermostructural analysis, reliability, and lifetime prediction. The full scope of the engineering tasks includes aero/thermodynamic flow path and secondary flows analysis to determine thermal...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2018, 140(1): 012603.
Paper No: GTP-17-1252
Published Online: September 19, 2017
... for fast starts. In current practice, turbine start-up limitations are set by consideration of thermal stress and low cycle fatigue. However, the pursuit of faster starts raises the question whether other thermal phenomena can become a limiting factor to the start-up process. Differential expansion (DE...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2017, 139(9): 091502.
Paper No: GTP-16-1518
Published Online: April 11, 2017
...Larry Lebel; Sylvain Turenne; Rachid Boukhili This paper presents an experimental procedure developed to simulate the behavior of ceramic matrix composites (CMCs) under the cyclic thermal stresses of a gas turbine combustion chamber. An experimental apparatus was assembled that produces...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2017, 139(7): 072504.
Paper No: GTP-16-1487
Published Online: February 23, 2017
... closures, through the frictional heat generated at the leaf–rotor interface when in contact, represents an important challenge for leaf seal analysis and design. This coupling can lead to leaf wear and loss, rotor overheating, and possibly to unstable sealing system behavior (thermal runaway...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2017, 139(7): 072603.
Paper No: GTP-16-1472
Published Online: February 14, 2017
...Julien Pohl; Harvey M. Thompson; Ralf C. Schlaps; Shahrokh Shahpar; Vincenzo Fico; Gary A. Clayton At present, it is a common practice to expose engine components to main annulus air temperatures exceeding the thermal material limit in order to increase the overall engine performance...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2017, 139(5): 052101.
Paper No: GTP-16-1432
Published Online: January 10, 2017
...Xijia Wu; Zhong Zhang; Leiyong Jiang; Prakash Patnaik Nozzle guide vanes (NGV) of gas turbine engines are the first components to withstand the impingement of hot combustion gas and therefore often suffer thermal fatigue failures in service. A lifting analysis is performed for the NGV of a gas...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2017, 139(4): 042503.
Paper No: GTP-16-1306
Published Online: November 2, 2016
...Travis A. Cable; Luis San Andrés; Karl Wygant Multiple-stage integrally geared compressors (IGCs) offer improved thermal efficiency and easier access for maintenance and overhaul than single-shaft centrifugal compressors. In an IGC, a main bull shaft drives pinion shafts, each having an impeller...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2017, 139(3): 031903.
Paper No: GTP-16-1241
Published Online: October 4, 2016
..., precise boundary conditions in terms of local temperatures as well as heat transfer coefficients are essential. In order to gain such information and understand the flow physics behind them, more and more complex thermal modeling approaches are necessary, like computational fluid dynamics (CFD) or even...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2017, 139(1): 011801.
Paper No: GTP-16-1202
Published Online: August 16, 2016
...Steffen Kahlert; Hartmut Spliethoff Intermittency of renewable electricity generation poses a challenge to thermal power plants. While power plants in the public sector see a decrease in operating hours, the utilization of industrial power plants is mostly unaffected because process steam has...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2016, 138(9): 092501.
Paper No: GTP-15-1162
Published Online: March 22, 2016
... on the additive decomposition of the strain rates into their elastic ε ˙ ¯ ¯ el , inelastic ε ˙ ¯ ¯ in , and thermal expansion ε ˙ ¯ ¯ th parts. The total strain rate is given as (11) ε ˙ ¯ ¯ = ε ˙ ¯ ¯ el + ε...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2016, 138(6): 062102.
Paper No: GTP-15-1419
Published Online: November 17, 2015
...Monika Topel; Markus Jöcker; Sayantan Paul; Björn Laumert In order to improve the startup flexibility of steam turbines, it becomes relevant to analyze their dynamic thermal behavior. In this work, the relative expansion between rotor and casing was studied during cold-start conditions...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2015, 137(10): 102604.
Paper No: GTP-14-1641
Published Online: October 1, 2015
... received January 31, 2015; published online April 28, 2015. Editor: David Wisler. 29 11 2014 31 01 2015 28 04 2015 Two-dimensional thermal profiles were experimentally measured downstream of a single row of film cooling holes on both an adiabatic and a matched Biot number model...