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Keywords: mixing
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Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2014, 136(6): 061503.
Paper No: GTP-13-1236
Published Online: February 4, 2014
... are usually focused on the optimization of the swirler aerodynamics and the fuel-air mixing. Since the method solely relies on nonreacting tests of burner models in the water channel, it can be applied before any test equipment for combustion experiments exists. In order to achieve optimum similarity of fuel...
Journal Articles
Article Type: Technical Briefs
J. Eng. Gas Turbines Power. March 2012, 134(3): 034501.
Published Online: January 9, 2012
.... Recognizing that poor fuel-air mixing leads to increased emissions, it is therefore imperative to characterize the extent of fuel-air mixing at the exit of the multihole tube. In the present investigation, mixing characterization experiments were conducted by mapping the distribution of fuel-air equivalence...
Journal Articles
Article Type: Technical Briefs
J. Eng. Gas Turbines Power. September 2009, 131(5): 054501.
Published Online: May 22, 2009
... body, which energizes the diffusion and mixing process. 07 06 2008 15 10 2008 22 05 2009 combustion damping diffusion flames flow instability fluid oscillations mixing pipe flow vortices wakes combustion instability bluff body stabilization diffusion flames...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2009, 131(2): 022901.
Published Online: December 30, 2008
... simulation numerical analysis two-phase flow tight lattice interface tracking cross flow mixing differential pressure In what follows, the evaluation method for the pressure drop shown in this study will be first compared with the simulations results of the pressure drop distribution...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. September 2008, 130(5): 051507.
Published Online: June 17, 2008
...D. J. Beerer; V. G. McDonell With the need to reduce carbon emissions such as C O 2 , hydrogen is being examined as potential “clean” fuel for the future. One potential strategy is lean premixed combustion, where the fuel and air are allowed to mix upstream before entering the combustor, which has...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. October 2006, 128(4): 942–949.
Published Online: October 24, 2005
...) and, by decoupling chemistry with mixing, provides an unambiguous data interpretation for kinetics study. The soot evolution was studied by the line-of-sight absorption method (at 632.8 nm ), which measured the soot volume concentration evolution in the initial stage of soot growth before the optical path became...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. April 2004, 126(2): 276–283.
Published Online: June 7, 2004
...J. Fritz; M. Kro¨ner; T. Sattelmayer Flame flashback from the combustion chamber into the mixing zone is one of the inherent problems of lean premixed combustion and essentially determines the reliability of low NO x burners. Generally, flashback can be initiated by one of the following four...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. October 2003, 125(4): 901–908.
Published Online: November 18, 2003
...J. Becker; C. Hassa Fuel placement and air-fuel mixing in a generic aeroengine premix module employing plain jet liquid fuel injection into a counter-swirling double-annular crossflow were investigated at different values of air inlet pressure (6 bar, 700 K and 12 bar, 700 K) and liquid-to-air...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. April 2003, 125(2): 435–443.
Published Online: April 29, 2003
...K. Sone; S. Menon Fuel-air mixing in a direct injection spark ignition (DISI) engine occurs in a highly unsteady, turbulent and three-dimensional flow. As a result, any cycle-to-cycle unsteady variation in the mixing process can directly impact the performance of the DISI engine. To study...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. April 2003, 125(2): 444–449.
Published Online: April 29, 2003
... internal combustion engines hydrogen fuel mixing ignition combustion pressure optimisation Hydrogen is a “clean burning” fuel and has the features of a carbon-free fuel. Its combustion products are mainly water. It produces no toxic components such as hydrocarbons, carbon monoxide, carbon...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. April 2003, 125(2): 466–471.
Published Online: April 29, 2003
... on the effect of different intensities of turbulent mixing on the combustion is performed. This study reveals that the ignition delay is a function of turbulent mixing of the hot bulk and the colder boundary layer. The efficiency of the HCCI engine has previously been shown by a number of experiments...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. January 2003, 125(1): 351–357.
Published Online: December 27, 2002
... the fuel-air mixing and formation of exhaust emissions. This study tries to find the optimum mixture distribution for the low-emission DI diesel engine and introduce measures in order to realize this distribution. Direct-injection diesel engines have been used not only in heavy duty applications...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. January 2003, 125(1): 1–10.
Published Online: December 27, 2002
.... 9 Schematic diagram of experimental facility The schematic diagram of the test facilities is shown in Fig. 9 . The raw fuel obtained by mixing CO 2 and steam with gaseous propane was decomposed to CO and H 2 inside the fuel reforming device. A hydrogen separation...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. January 2003, 125(1): 270–283.
Published Online: December 27, 2002
..., final revision, Mar. 2001. Associate Editor: R. Natole. 04 June 2001 01 Dec 2000 01 Mar 2001 27 12 2002 aerospace engines aerospace propulsion gas turbines nozzles combustion detonation fuel mixing Current Air Force planning activities indicate...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. January 2003, 125(1): 332–335.
Published Online: December 27, 2002
...D. Brasoveanu; A. K. Gupta, Professor and Director A unified model of gaseous fuel and air mixing is applied here to study the use of shock waves for enhancement of mixing between methane and air. The model uses fuel mass fraction within infinitesimal fluid elements and the total derivative...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. January 2003, 125(1): 40–45.
Published Online: December 27, 2002
... chemically reactive flow temperature distribution stability mixing The interest in low NO x combustion originates from the demand of cleaner burners with increased flame stability, turndown ratio and thermal efficiency. A promising technique is the use of near premixed swirl...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. October 2002, 124(4): 784–791.
Published Online: September 24, 2002
...O. Diers; J. Koopman; M. Fischer; C. Hassa To support the development of a rich quench lean pilot zone for a staged aeroengine combustor, two rectangular rich quench lean (RQL) combustor sectors have been investigated under atmospheric conditions. Two advanced cooling mixing concepts, effusion...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. July 2002, 124(3): 702–707.
Published Online: June 19, 2002
... of hundreds of reactions and species and is derived from fundamental flame chemistry. Effects of turbulent mixing on the reaction rates were also considered. The results show that the present KIVA/CHEMKIN model is able to simulate the ignition and combustion process in three different HCCI engines including...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. October 2001, 123(4): 810–816.
Published Online: October 1, 2000
..., PDA, Mie scattering on kerosene, quantitative light scattering, OH * chemiluminescence, and LIF on OH. The measurements were able to confirm the intended quick and homogeneous mixing of the three staggered rows of secondary air jets. Hassa, C., Carl, M., Frodermann, M., Behrendt, T., Heinze, J...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. October 2001, 123(4): 796–802.
Published Online: October 1, 2000
...A. Mansour; M. Benjamin; D. L. Straub; G. A. Richards Macrolamination, a novel manufacturing technique, is used to develop a dual-fuel premixer. A spatially distributed injection strategy is used to enhance fuel placement, distribution, and mixing inside the premixer. Parametric studies...