..., for further uncertainty quantification (UQ) studies with modified input uncertainties. 26 06 2018 28 06 2018 Combustion Combustors Computational fluid dynamics Flame Thermoacoustics Thermoacoustic stability analysis should be an essential part of the design process of low...

...Wing Yin Kwong; Adam M. Steinberg This paper describes the coupled flow and flame dynamics during blowoff and reattachment events in a combustor consisting of a linear array of five interacting nozzles using 10 kHz repetition-rate OH planar laser-induced fluorescence and stereoscopic particle image...

... while for the generic swirl burner they are 1.0 ppm. Manuscript received June 25, 2018; final manuscript received June 29, 2018; published online September 14, 2018. Assoc. Editor: Jerzy T. Sawicki. 25 06 2018 29 06 2018 Combustion Combustors Experimental Fuels Gas...

...Kexin Liu; Phill Hubbard; Suresh Sadasivuni; Ghenadie Bulat Extension of gas fuel flexibility of a current production SGT-400 industrial gas turbine combustor system is reported in this paper. A SGT-400 engine with hybrid combustion system configuration to meet a customer's specific requirements...

...G. Ghirardo; C. Di Giovine; J. P. Moeck; M. R. Bothien Can-annular combustors consist of a set of independent cans, connected on the upstream side to the combustor plenum and on the downstream side to the turbine inlet, where a transition duct links the round geometry of each can with the annular...

... October 19, 2017; published online August 30, 2018. Editor: David Wisler. 05 09 2017 19 10 2017 Acoustic emission Combustion Combustors Gas turbine technology Noise due to unsteady combustion in technical combustors can be direct or indirect (see Dowling and Mahmoudi [ 1...

...Daesik Kim; Seungchai Jung; Heeho Park The side-wall cooling liner in a gas turbine combustor serves main purposes—heat transfer and emission control. Additionally, it functions as a passive damper to attenuate thermoacoustic instabilities. The perforations in the liner mainly convert acoustic...

.... 25 02 2018 10 05 2018 Burners Combustion Combustors Computational fluid dynamics Flame Fuel combustion Gas turbine technology Heat transfer Modeling Turbulence Turbulent Unsteady flows Flame–wall interaction is a physicochemical process in which flames and wall...

... OWER . Manuscript received November 22, 2017; final manuscript received June 28, 2018; published online August 20, 2018. Assoc. Editor: Eric Petersen. 22 11 2017 28 06 2018 Combustion Combustors Computational fluid dynamics Energy conversion Flame Fuels Gas turbine...

...Chunyan Li; Suhui Li; Xu Cheng; Min Zhu Pilot flames have been widely used for flame stabilization in low-emission gas turbine combustors. Effects of pilot flame on dynamic instabilities, however, are not well understood. In this work, the dynamic interactions between main and pilot flames...

..., the instantaneous flame location can vary in thickness and location due to heat losses or imperfect mixing. Postflame phenomena (slow CO oxidation or thermal NO production) can be expected to be significantly influenced by turbulent eddy structures. Since typical gas turbine combustor calculations require insight...

...Nicolai V. Stadlmair; Tobias Hummel; Thomas Sattelmayer In this paper, we present a method to determine the quantitative stability level of a lean-premixed combustor from dynamic pressure data. Specifically, we make use of the autocorrelation function of the dynamic pressure signal acquired...

...Viktor Józsa; Attila Kun-Balog Stringent emissions standards for NO x and carbon monoxide (CO) prompt lean combustor development. With this motivation, combustion stability issues emerge since the desired operating point approaches the lean blowout limit. In this paper, an atmospheric, 15 kW lean...

... Control of Lean Blowout for Turbine Engine Combustors ,” J. Propul. Power , 21 ( 5 ), pp. 807 – 814 . 10.2514/1.7254 [7] Prathap , C. , Ray , A. , and Ravi , M. R. , 2012 , “ Effects of Dilution With Carbon Dioxide on the Laminar Burning Velocity and Flame Stability of H2-CO Mixtures...

... quantification needs. Yet, phenomenological descriptions of soot formation, containing key ingredients for soot modeling exist in the literature, such as the well-known Leung et al. model (Combust Flame 1991). However, when blindly applied to aeronautical combustors for different operating conditions, this model...

...; published online June 15, 2018. Assoc. Editor: Klaus Dobbeling. 21 07 2017 05 11 2017 Energy systems Combustors Cooling Design optimization Energy Energy conversion Engines Exergy Fuel combustion Gas turbine technology Heat transfer Internal combustion engines Mass Transfer...

...Seungtaek Oh; Jaehyeon Kim; Yongmo Kim In this study, new methodologies are introduced to analyze combustion instability in a lab-scale swirled combustor. First, with the help of radial basis function neural network (RBFNN), the flame describing function (FDF) is effectively modeled from a limited...

...Suhyeon Park; David Gomez-Ramirez; Siddhartha Gadiraju; Sandeep Kedukodi; Srinath V. Ekkad; Hee-Koo Moon; Yong Kim; Ram Srinivasan In this study, we provide detailed wall heat flux measurements and flow details for reacting flow conditions in a model combustor. Heat transfer measurements inside...

... for publication in the J OURNAL OF E NGINEERING FOR G AS T URBINES AND P OWER . Manuscript received November 9, 2017; final manuscript received December 12, 2017; published online May 2, 2018. Editor: David Wisler. 09 11 2017 12 12 2017 Burners Combustion Combustors Experimental Flame...

...Alejandro M. Briones; Scott D. Stouffer; Konstantinos Vogiatzis; Keith Rein; Brent A. Rankin The effects of effusion and film cooling momenta on combustor flow fields are investigated. Steady, compressible three-dimensional (3D) simulations are performed on a single-swirler combustor using Reynolds...