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Keywords: sprays
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Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2018, 140(9): 092808.
Paper No: GTP-18-1104
Published Online: July 30, 2018
... at early injection timings, which has not been observed in large-bore engines operating under RCCI at similar conditions. In this work, computational fluid dynamics (CFD) simulations were performed to investigate whether spray–wall interactions could be responsible for this result. Comparison of the spray...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2018, 140(10): 102811.
Paper No: GTP-18-1096
Published Online: July 10, 2018
... timings, while parts of the diesel spray should still be able to ignite freely. As the entrainment of the diesel spray into the gas jet occurs close to the nozzle where the impulse is large, ignition is probably inhibited as well for crossing jets and negative gas injection time delays when swirl motion...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2018, 140(11): 111502.
Paper No: GTP-17-1471
Published Online: June 27, 2018
... a moderately extended blowout stability limitation, while the NO x emission slightly increased and the CO emission reduced compared to the baseline burner. Burners Combustion Combustors Design optimization Flame Fuel combustion Gas turbine technology Sprays Swirling Steady liquid fuel...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2018, 140(10): 102603.
Paper No: GTP-17-1513
Published Online: June 25, 2018
... ( 03 ), pp. 467 – 479 . 10.1017/S0022112068000285 [3] Dunham , R. E. , Jr. , Bezos , G. M. , Gentry , G. L. , Jr. , and Melson , E. , Jr. , 1985 , “ Two-Dimensional Wind Tunnel Tests of a Transport-Type Airfoil in a Water Spray ,” AIAA Paper No. 1985-258. 10.2514/6.1985...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2018, 140(10): 102809.
Paper No: GTP-18-1088
Published Online: June 25, 2018
... and temperature. The study reveals that the quality of the diesel pilot ignition in terms of short ignition delay and a high number of ignited sprays significantly depends on the injection parameters and operating conditions. In most cases, the pilot fuel suffers from too high dilution due to its small quantity...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2018, 140(9): 092802.
Paper No: GTP-18-1083
Published Online: May 24, 2018
... with the catalyst was identified as the critical process driving the susceptibility to deposit formation. The spray of urea solution was characterized in terms of velocity distribution by means of particle-image velocimetry. Results were compared with theoretical predictions and calculation options for processes...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2018, 140(8): 082801.
Paper No: GTP-17-1601
Published Online: May 11, 2018
... Evaporation Flame Fuel combustion Power systems Sprays Thermodynamics Vaporization According to the single fuel policy, adopted by the U.S. Department of Defense (DoD), the U.S. military ground vehicles, as well as air forces, must operate on a single fuel to minimize the number of different...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2018, 140(6): 061509.
Paper No: GTP-16-1504
Published Online: February 28, 2018
...Aron P. Dobos; Allan T. Kirkpatrick This paper studies the differences in spray structure and emissions trends between diesel and biodiesel fuels in a compression ignition engine. A computationally efficient and predictive quasi-dimensional simulation model is combined with fuel-specific physical...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2018, 140(6): 061506.
Paper No: GTP-17-1246
Published Online: February 13, 2018
... approach is able to predict the main characteristics of the flame with a good agreement with the experiment in terms of flame shape, spray characteristics and soot location. Finite-rate chemistry effects appear to be very important in the region close to the injection location leading to the lift-off...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2018, 140(5): 051601.
Paper No: GTP-17-1295
Published Online: December 27, 2017
... of Water Film Distribution and Thickness on an Airfoil in a Water Spray ,” NASA Langley Research Center, Hampton, VA, Technical Report No. NASA-TM-85796 . https://ntrs.nasa.gov/search.jsp?R=19840019609 [4] Ozar , B. , Cetegen , B. M. , and Faghri , A. , 2003 , “ Experiments on the Flow...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2018, 140(5): 051504.
Paper No: GTP-17-1254
Published Online: December 19, 2017
... in the measured data. To get a close insight into the emission formation processes in water-injected flames, local concentration measurements are used to calculate distributions of the reaction progress variable. Finally, to clarify the influence of spray quality on the composition of the exhaust gas, a variation...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2018, 140(5): 051501.
Paper No: GTP-17-1396
Published Online: November 21, 2017
... are considered. First, capabilities of FGM are evaluated on a single swirler burner operating at ambient pressure with a standard pressure atomizer for spray injection. Then, a second test case, operated at 4 bar, is simulated. Here, kerosene fuel is burned after an injection through a prefilming airblast...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2018, 140(4): 041511.
Paper No: GTP-17-1412
Published Online: November 7, 2017
...Brian T. Fisher; Michael R. Weismiller; Steven G. Tuttle; Katherine M. Hinnant In order to understand the reasons for the apparent benefits of using a flow-blurring (FB) atomizer in a combustion system, it is necessary to first examine fundamental spray characteristics under nonreacting conditions...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2018, 140(3): 031503.
Paper No: GTP-17-1276
Published Online: October 17, 2017
...Kevin Prieur; Daniel Durox; Thierry Schuller; Sébastien Candel This article reports experiments carried out in the MICCA-spray combustor developed at EM2C laboratory. This system comprises 16 swirl spray injectors. Liquid n-heptane is injected by simplex atomizers. The combustion chamber is formed...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2018, 140(2): 021401.
Paper No: GTP-17-1317
Published Online: October 3, 2017
.... 07 07 2017 12 07 2017 Droplet Evaporation Fuels Sprays Combustion In recent years, the need to reduce the reliance on fossil fuels for energy production and transportation contributes to an ever increasing interest in biofuels [ 1 ]. At the same time, the current...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2018, 140(2): 021502.
Paper No: GTP-17-1316
Published Online: October 3, 2017
... ignition are addressed in the present work. Two facilities enable the analysis of two characteristic phases of the process. The knowledge for ignition, acoustics and instabilities (KIAI)-Spray single-injector burner was investigated in terms of local flow properties, including the air velocity and droplet...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2017, 139(12): 121501.
Paper No: GTP-17-1296
Published Online: August 16, 2017
...-pass filter character of the prefilming airblast atomization phenomenon, which also introduces a significant phase shift on the dynamics of SMD of the generated spray. The models are tested in their original formulations without any calibration in order to assess their robustness versus different...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2017, 139(11): 112802.
Paper No: GTP-17-1067
Published Online: June 6, 2017
... approach for diesel engine applications is a multizone spray and combustion model pioneered by Hiroyasu and his group. It divides diesel spray into packets and tracks fuel evaporation, air entrainment, gas properties, and ignition delay (induction time) individually during the injection and combustion...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2017, 139(10): 102803.
Paper No: GTP-17-1055
Published Online: April 25, 2017
... images keeps the same as that of an individual image, which further confirms the repeatable spray combustion measurement in this study. The implementation of two-color pyrometry was described in detail in Ref. [ 41 ]. A brief summary is presented here. Soot thermal radiation at two different...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2017, 139(10): 102801.
Paper No: GTP-16-1461
Published Online: April 25, 2017
...; Despite all these similarity, injector IHP 3B is shown to have the advantages on its spray targeting design, which lead to a better air–fuel mixing with strengthened in-cylinder flow. As shown in the 400 bar case of Fig. 4 , a generally 3 deg lower PM emission for IHP 3B was observed. This phenomenon can...