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Keywords: ignition
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Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2022, 144(2): 021002.
Paper No: GTP-21-1384
Published Online: October 20, 2021
... m-xylene mechanism correctly predicts ignition delay times at different pressures and temperatures as well as laminar burning velocities at atmospheric pressure and various fuel equivalence ratios. At high pressure, some deviations of the calculated laminar burning velocity and the measured values...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2021, 143(11): 111301.
Paper No: GTP-20-1285
Published Online: October 4, 2021
...Vyaas Gururajan; Riccardo Scarcelli; Anand Karpatne; Douglas Breden; Laxminarayan Raja; Sayan Biswas; Isaac Ekoto Nanosecond pulsed discharges have attracted the attention of engine manufacturers due to the possibility of attaining distributed ignition sites that accelerate burn rates while...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2020, 142(8): 081003.
Paper No: GTP-19-1707
Published Online: July 31, 2020
... are evaluated. The ignition and lean blow-out (LBO) results show that the baseline injector exhibits excellent combustion stability, while the coswirling design holds the highest ignition and LBO fuel–air ratio (FAR). In order to find out the physical mechanisms dominating the ignition and LBO processes...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2013, 135(3): 031401.
Paper No: GTP-12-1382
Published Online: February 21, 2013
... electrical power supply. In the present work, we report on the study of generic representative gas mixtures stemming from the gasification of different feedstock, from wood and algae. Two major combustion properties—burning velocities and ignition delay times—were measured for different parameters: (i...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2013, 135(2): 021505.
Paper No: GTP-12-1376
Published Online: January 10, 2013
... received October 1, 2012; published online January 10, 2013. Editor: Dilip R. Ballal. 24 09 2012 01 10 2012 The work presented in this paper intends to deepen our understanding of the mechanisms involved in the spark ignition of liquid fuel sprays. An experimental study is presented...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2013, 135(1): 011506.
Paper No: GTP-12-1296
Published Online: November 30, 2012
... . Manuscript received July 23, 2012; final manuscript received August 1, 2012; published online November 30, 2012. Editor: Dilip R. Ballal. 23 07 2012 01 08 2012 This paper contains a numerical examination concerning the ignition behavior of a spray nozzle mounted in a rectangular channel...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. May 2012, 134(5): 051502.
Published Online: February 29, 2012
...Henrik Hesse; Sean P. Malkeson; Nilanjan Chakraborty The statistics of the density-weighted displacement speed of the reaction progress variable c isosurfaces for stratified mixture combustion arising from localized ignition in a turbulent planar coflowing jet have been studied based on 3D Direct...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. May 2012, 134(5): 052801.
Published Online: February 21, 2012
...Cosmin E. Dumitrescu; W. Stuart Neill; Hongsheng Guo; Vahid Hosseini; Wallace L. Chippior An experimental study was performed to investigate fuel property effects on premixed charge compression ignition (PCCI) combustion in a heavy-duty diesel engine. A matrix of research diesel fuels designed...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. April 2012, 134(4): 041504.
Published Online: January 30, 2012
..., autoignition can be observed in the simulations. Influences of the turbulence modeling as well as of the hot flue gas temperature are investigated. The onset and the propagation of the ignition kernels are studied based on the SAS modeling results. The obtained numerical results are discussed and compared...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. April 2012, 134(4): 041502.
Published Online: January 25, 2012
... to a reduction of the highest possible H 2 concentration without “flame-stabilizing autoignition kernels” of approximately 16 vol. %. Furthermore, the onset and propagation of the ignition kernels were elucidated using the high-speed measurements. It was found that the ability of individual autoignition kernels...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2012, 134(3): 032801.
Published Online: December 28, 2011
... temperature, causing significant changes in ignition delay. These changes were compensated for in the experiments by increasing intake temperature but would be challenging to manage in transient engine operation. Second, the increased water concentration in the exhaust created difficulties in the exhaust...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. February 2012, 134(2): 021504.
Published Online: December 20, 2011
... of ignition delay, flame speed and extinction strain rate, as well as species composition in stirred reactors, flames and flow reactors. The range of conditions covers low to high temperatures, very lean to very rich fuel-air ratios, and low to high pressures. Our core reaction mechanism contains...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. February 2012, 134(2): 022801.
Published Online: December 8, 2011
... on the ignition delay, premixed combustion fraction and mixing and diffusion controlled combustion fractions. Biodiesel produced the largest diffusion controlled combustion fraction at all injection pressures compared to ULSD and JP-8. At 600 bar injection pressure, the diffusion controlled combustion fraction...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. December 2011, 133(12): 122802.
Published Online: August 29, 2011
...B. B. Sahoo; U. K. Saha; N. Sahoo Syngas, an environmentally friendly alternative gaseous fuel for internal combustion engine operation, mainly consists of carbon monoxide (CO) and hydrogen (H 2 ). It can substitute fossil diesel oil in a compression ignition diesel engine through dual fuel...
Journal Articles
Article Type: Technical Briefs
J. Eng. Gas Turbines Power. November 2011, 133(11): 114504.
Published Online: May 18, 2011
...Sreenath B. Gupta; Bipin Bihari; Munidhar Biruduganti; Raj Sekar A single-cylinder natural gas fueled engine equipped with an exhaust gas recirculation (EGR) system was ignited using a laser. The broadband emission from the spark kernel was spectrally resolved, and the peaks corresponding to H α...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. November 2011, 133(11): 112801.
Published Online: May 13, 2011
... charge compression ignition (HCCI) engine fueled with n-heptane. The engine was operated with four fuel blends containing up to 50% iso-octane by liquid volume at 900 rpm, 50:1 air-to-fuel ratio, no exhaust gas recirculation, and an intake mixture temperature of 30 ° C . A detailed analysis...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. October 2011, 133(10): 102801.
Published Online: April 25, 2011
...Mirko Baratta; Andrea E. Catania; Alessandro Ferrari; Roberto Finesso; Ezio Spessa A new multizone premixed-diffusive combustion model has been developed, assessed, and applied to diagnose the burning process and emission formation in a conventional and in a premixed charge compression ignition...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2011, 133(3): 032803.
Published Online: November 9, 2010
... normal alkanes (C6–C16), normal primary alkenes (C6–C18), isoalkanes, cycloalkanes/-enes, and aromatic species. In addition, seven fuel blends were tested, including commercial diesel fuel, U.S. Navy JP-5 aviation fuel, and five Fischer–Tropsch synthetic fuels. Ignition delay was used as a primary...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. February 2011, 133(2): 021504.
Published Online: October 28, 2010
...W. Meier; I. Boxx; C. Arndt; M. Gamba; N. Clemens An experimental arrangement for the investigation of auto-ignition of a pulsed CH 4 jet in a coflow of hot exhaust gas from a laminar lean premixed H 2 / air flame at atmospheric pressure is presented. The ignition events were captured by high-speed...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. February 2011, 133(2): 022802.
Published Online: October 25, 2010
... boundary layer turbulence heat transfer ignition internal combustion engines sparks thermal conductivity thermodynamics Instantaneous heat transfer in internal combustion engines is often modeled using empirical correlations derived from steady flow boundary layer analyses. The simplicity...