Auto-ignitive deflagration speed of methane (CH4) blended dimethyl-ether (DME)/air mixtures at stratified conditions

Desai, Swapnil; Sankaran, Ramanan; Im, Hong G.

doi:10.1016/j.combustflame.2019.10.001

Title: Auto-ignitive deflagration speed of methane (CH₄) blended dimethyl-ether (DME)/air mixtures at stratified conditions

Journal Article · 23 October 2019 · Combustion and Flame

DOI: https://doi.org/10.1016/j.combustflame.2019.10.001 · OSTI ID:1615991

^[1];

^[2];

^[3]

Univ. of Tennessee, Knoxville, TN (United States)
Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
King Abdullah Univ. of Science and Technology, Thuwal (Saudi Arabia). Clean Combustion Research Center

Front propagation speeds from fully resolved unsteady one dimensional simulations with dimethyl-ether (DME)/methane (CH₄)/air mixtures under engine relevant conditions are presented using complex kinetics and transport. Different time-scales of monochromatic inhomogeneities in DME concentration with varying DME/CH₄ blending ratios are simulated to unravel the fundamental aspects of auto-ignition and flame propagation under the influence of reactivity stratification. To understand the influence of different stratification time-scales on the flame-ignition interaction, two sets of conditions are simulated such that low temperature chemistry is present in only one of them. For a given amplitude of stratification, it is found that the instantaneous propagation speed is significantly affected by the level of CH₄ concentration in the binary fuel blend. Specifically, for cases with low temperature chemistry, at relatively smaller time-scales, the overall fluctuation in the instantaneous propagation speed is found to subside as the level of CH₄ concentration in the mixture is increased. However, for both sets of conditions, at comparatively larger time-scales, a rapid change in the instantaneous propagation speed is observed with an increase in the level of CH₄ concentration in the mixture. The intrinsic effects of stratification time-scales on the low temperature chemistry and the high temperature chemistry are further examined to assess the flame-ignition interaction. A displacement speed analysis is also carried out to elucidate the underlying combustion modes that are responsible for such a variation in flame response.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1615991

Alternate ID(s):: OSTI ID: 1775660

Journal Information:: Combustion and Flame, Journal Name: Combustion and Flame Journal Issue: C Vol. 211; ISSN 0010-2180

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

References (48)

Autoignition and front propagation in low temperature combustion engine environments Bansal, Gaurav; Im, Hong G. Combustion and Flame, Vol. 158, Issue 11 https://doi.org/10.1016/j.combustflame.2011.03.019	journal	November 2011
Direct numerical simulations of reacting flows with detailed chemistry using many-core/GPU acceleration Hernández Pérez, Francisco E.; Mukhadiyev, Nurzhan; Xu, Xiao Computers & Fluids, Vol. 173 https://doi.org/10.1016/j.compfluid.2018.03.074	journal	September 2018
Analysis of the contribution of curvature to premixed flame propagation Echekki, Tarek; Chen, Jacqueline H. Combustion and Flame, Vol. 118, Issue 1-2 https://doi.org/10.1016/S0010-2180(99)00006-1	journal	July 1999
Numerical and experimental investigation of turbulent DME jet flames Bhagatwala, Ankit; Luo, Zhaoyu; Shen, Han Proceedings of the Combustion Institute, Vol. 35, Issue 2 https://doi.org/10.1016/j.proci.2014.05.147	journal	January 2015
Thermal decomposition reaction and a comprehensive kinetic model of dimethyl ether Zhao, Zhenwei; Chaos, Marcos; Kazakov, Andrei International Journal of Chemical Kinetics, Vol. 40, Issue 1 https://doi.org/10.1002/kin.20285	journal	January 2008
Progress and recent trends in reactivity-controlled compression ignition engines Paykani, Amin; Kakaee, Amir-Hasan; Rahnama, Pourya International Journal of Engine Research, Vol. 17, Issue 5 https://doi.org/10.1177/1468087415593013	journal	July 2015
Experimental investigation of butanol isomer combustion in Homogeneous Charge Compression Ignition (HCCI) engines Mack, J. Hunter; Schuler, Daniel; Butt, Ryan H. Applied Energy, Vol. 165 https://doi.org/10.1016/j.apenergy.2015.12.105	journal	March 2016
Study on ignition and flame development in gasoline partially premixed combustion using multiple optical diagnostics Tang, Qinglong; Liu, Haifeng; Li, Mingkun Combustion and Flame, Vol. 177 https://doi.org/10.1016/j.combustflame.2016.12.013	journal	March 2017
Influence of fuel composition on combustion and emissions characteristics of natural gas/diesel RCCI engine Kakaee, Amir-Hasan; Rahnama, Pourya; Paykani, Amin Journal of Natural Gas Science and Engineering, Vol. 25 https://doi.org/10.1016/j.jngse.2015.04.020	journal	July 2015
Dynamic flammability limits of methane/air premixed flames with mixture composition fluctuations Sankaran, Ramanan; Im, Hong G. Proceedings of the Combustion Institute, Vol. 29, Issue 1 https://doi.org/10.1016/S1540-7489(02)80014-1	journal	January 2002
Boundary conditions for direct simulations of compressible viscous flows Poinsot, T. J.; Lelef, S. K. Journal of Computational Physics, Vol. 101, Issue 1 https://doi.org/10.1016/0021-9991(92)90046-2	journal	July 1992
Stabilized three-stage oxidation of DME/air mixture in a micro flow reactor with a controlled temperature profile Oshibe, Hiroshi; Nakamura, Hisashi; Tezuka, Takuya Combustion and Flame, Vol. 157, Issue 8 https://doi.org/10.1016/j.combustflame.2010.03.004	journal	August 2010
Optical study of throttleless and EGR-controlled stoichiometric dual-fuel compression ignition combustion Ma, Xiao; Li, Yanfei; Qi, Yunliang Fuel, Vol. 182 https://doi.org/10.1016/j.fuel.2016.05.021	journal	October 2016
Flame dynamics in oscillating flows under autoignitive conditions Deng, Sili; Zhao, Peng; Mueller, Michael E. Combustion and Flame, Vol. 168 https://doi.org/10.1016/j.combustflame.2016.04.001	journal	June 2016
Experimental analysis of propagation regimes during the autoignition of a fully premixed methane–air mixture in the presence of temperature inhomogeneities Strozzi, Camille; Mura, Arnaud; Sotton, Julien Combustion and Flame, Vol. 159, Issue 11 https://doi.org/10.1016/j.combustflame.2012.06.011	journal	November 2012
Analysis of n-heptane auto-ignition characteristics using computational singular perturbation Gupta, Saurabh; Im, Hong G.; Valorani, Mauro Proceedings of the Combustion Institute, Vol. 34, Issue 1 https://doi.org/10.1016/j.proci.2012.07.077	journal	January 2013
Modes of reaction front propagation from hot spots Gu, X. J.; Emerson, D. R.; Bradley, D. Combustion and Flame, Vol. 133, Issue 1-2 https://doi.org/10.1016/S0010-2180(02)00541-2	journal	April 2003
Ignition of methane with hydrogen and dimethyl ether addition Dai, Peng; Chen, Zheng; Chen, Shiyi Fuel, Vol. 118 https://doi.org/10.1016/j.fuel.2013.10.048	journal	February 2014
Heavy-Duty RCCI Operation Using Natural Gas and Diesel Nieman, Derek E.; Dempsey, Adam B.; Reitz, Rolf D. SAE International Journal of Engines, Vol. 5, Issue 2 https://doi.org/10.4271/2012-01-0379	journal	January 2012
Several new numerical methods for compressible shear-layer simulations Kennedy, Christopher A.; Carpenter, Mark H. Applied Numerical Mathematics, Vol. 14, Issue 4 https://doi.org/10.1016/0168-9274(94)00004-2	journal	June 1994
Low-storage, explicit Runge–Kutta schemes for the compressible Navier–Stokes equations Kennedy, Christopher A.; Carpenter, Mark H.; Lewis, R. Michael Applied Numerical Mathematics, Vol. 35, Issue 3 https://doi.org/10.1016/S0168-9274(99)00141-5	journal	November 2000
Multi-scale modeling of dynamics and ignition to flame transitions of high pressure stratified n-heptane/toluene mixtures Sun, Weiqi; Won, Sang Hee; Gou, Xiaolong Proceedings of the Combustion Institute, Vol. 35, Issue 1 https://doi.org/10.1016/j.proci.2014.05.141	journal	January 2015
Structure of laminar premixed flames of methane near the auto-ignition limit Habisreuther, Peter; Galeazzo, Flavio Cesar Cunha; Prathap, Chockalingam Combustion and Flame, Vol. 160, Issue 12 https://doi.org/10.1016/j.combustflame.2013.06.023	journal	December 2013
Stabilization of laminar nonpremixed DME/air coflow flames at elevated temperatures and pressures Deng, Sili; Zhao, Peng; Mueller, Michael E. Combustion and Flame, Vol. 162, Issue 12 https://doi.org/10.1016/j.combustflame.2015.08.019	journal	December 2015
Integral Length Scales and Time Scales of Turbulence in an Optical Spark-Ignition Engine Aleiferis, P. G.; Behringer, M. K.; Malcolm, J. S. Flow, Turbulence and Combustion, Vol. 98, Issue 2 https://doi.org/10.1007/s10494-016-9775-9	journal	October 2016
The effects of non-uniform temperature distribution on the ignition of a lean homogeneous hydrogen–air mixture Sankaran, Ramanan; Im, Hong G.; Hawkes, Evatt R. Proceedings of the Combustion Institute, Vol. 30, Issue 1 https://doi.org/10.1016/j.proci.2004.08.176	journal	January 2005
An experimental study of flame and autoignition interactions of iso-octane and air mixtures Assanis, Dimitris; Wagnon, Scott W.; Wooldridge, Margaret S. Combustion and Flame, Vol. 162, Issue 4 https://doi.org/10.1016/j.combustflame.2014.10.012	journal	April 2015
Review of high efficiency and clean reactivity controlled compression ignition (RCCI) combustion in internal combustion engines Reitz, Rolf D.; Duraisamy, Ganesh Progress in Energy and Combustion Science, Vol. 46 https://doi.org/10.1016/j.pecs.2014.05.003	journal	February 2015
Effects of initial temperature on autoignition and detonation development in dimethyl ether/air mixtures with temperature gradient Dai, Peng; Qi, Chengken; Chen, Zheng Proceedings of the Combustion Institute, Vol. 36, Issue 3 https://doi.org/10.1016/j.proci.2016.08.014	journal	January 2017
Combustion regime of a reacting front propagating into an auto-igniting mixture Martz, J. B.; Kwak, H.; Im, H. G. Proceedings of the Combustion Institute, Vol. 33, Issue 2 https://doi.org/10.1016/j.proci.2010.07.040	journal	January 2011
A Regime Diagram for Autoignition of Homogeneous Reactant Mixtures with Turbulent Velocity and Temperature Fluctuations Im, Hong G.; Pal, Pinaki; Wooldridge, Margaret S. Combustion Science and Technology, Vol. 187, Issue 8 https://doi.org/10.1080/00102202.2015.1034355	journal	February 2015
High temperature ignition and combustion enhancement by dimethyl ether addition to methane–air mixtures Chen, Zheng; Qin, Xiao; Ju, Yiguang Proceedings of the Combustion Institute, Vol. 31, Issue 1 https://doi.org/10.1016/j.proci.2006.07.177	journal	January 2007
Combustion and emissions characteristics of a S.I. engine fueled with gasoline-DME blends under different spark timings Shi, Lei; Ji, Changwei; Wang, Shuofeng Fuel, Vol. 211 https://doi.org/10.1016/j.fuel.2017.09.019	journal	January 2018
Numerical investigation of spontaneous flame propagation under RCCI conditions Bhagatwala, Ankit; Sankaran, Ramanan; Kokjohn, Sage Combustion and Flame, Vol. 162, Issue 9 https://doi.org/10.1016/j.combustflame.2015.06.005	journal	September 2015
Regime classification of an exothermic reaction with nonuniform initial conditions Zeldovich, Y. Combustion and Flame, Vol. 39, Issue 2 https://doi.org/10.1016/0010-2180(80)90017-6	journal	October 1980
Three-stage heat release in n-heptane auto-ignition Sarathy, S. Mani; Tingas, Efstathios-Al.; Nasir, Ehson F. Proceedings of the Combustion Institute, Vol. 37, Issue 1 https://doi.org/10.1016/j.proci.2018.07.075	journal	January 2019
Characterizing the Development of Thermal Stratification in an HCCI Engine Using Planar-Imaging Thermometry Dec, John E.; Hwang, Wontae SAE International Journal of Engines, Vol. 2, Issue 1 https://doi.org/10.4271/2009-01-0650	journal	April 2009
Theory of combustion waves in homogeneous media Merzhanov, A. G.; Khaikin, B. I. Progress in Energy and Combustion Science, Vol. 14, Issue 1 https://doi.org/10.1016/0360-1285(88)90006-8	journal	January 1988
On the effect of injection timing on the ignition of lean PRF/air/EGR mixtures under direct dual fuel stratification conditions Luong, Minh Bau; Sankaran, Ramanan; Yu, Gwang Hyeon Combustion and Flame, Vol. 183 https://doi.org/10.1016/j.combustflame.2017.05.023	journal	September 2017
Multi-timescale modeling of ignition and flame regimes of n-heptane-air mixtures near spark assisted homogeneous charge compression ignition conditions Ju, Yiguang; Sun, Wenting; Burke, Michael P. Proceedings of the Combustion Institute, Vol. 33, Issue 1 https://doi.org/10.1016/j.proci.2010.06.110	journal	January 2011
The role of low temperature chemistry in combustion mode development under elevated pressures Pan, Jiaying; Wei, Haiqiao; Shu, Gequn Combustion and Flame, Vol. 174 https://doi.org/10.1016/j.combustflame.2016.09.012	journal	December 2016
Detonation onset in a thermally stratified constant volume reactor Sow, Aliou; Lee, Bok Jik; Hernández Pérez, Francisco E. Proceedings of the Combustion Institute, Vol. 37, Issue 3 https://doi.org/10.1016/j.proci.2018.08.043	journal	January 2019
Experimental Study on Homogeneous Charge Compression Ignition Combustion With Fuel of Dimethyl Ether and Natural Gas Yao, Mingfa; Zheng, Zunqing; Qin, Jin Journal of Engineering for Gas Turbines and Power, Vol. 128, Issue 2 https://doi.org/10.1115/1.2130731	journal	September 2005
Fuel reactivity controlled compression ignition (RCCI): a pathway to controlled high-efficiency clean combustion Kokjohn, S. L.; Hanson, R. M.; Splitter, D. A. International Journal of Engine Research, Vol. 12, Issue 3 https://doi.org/10.1177/1468087411401548	journal	June 2011
Experimental and numerical study of laminar premixed dimethyl ether/methane–air flame Yu, Huibin; Hu, Erjiang; Cheng, Yu Fuel, Vol. 136 https://doi.org/10.1016/j.fuel.2014.07.032	journal	November 2014
The structure and propagation of laminar flames under autoignitive conditions Krisman, Alex; Hawkes, Evatt R.; Chen, Jacqueline H. Combustion and Flame, Vol. 188 https://doi.org/10.1016/j.combustflame.2017.09.012	journal	February 2018
Investigation of Fuel Reactivity Stratification for Controlling PCI Heat-Release Rates Using High-Speed Chemiluminescence Imaging and Fuel Tracer Fluorescence Kokjohn, Sage; Reitz, Rolf D.; Splitter, Derek SAE International Journal of Engines, Vol. 5, Issue 2 https://doi.org/10.4271/2012-01-0375	journal	January 2012
Kinetic measurements in homogeneous charge compression of dimethyl ether: role of intermediate formaldehyde controlling chain branching in the low-temperature oxidation mechanism Yamada, Hiroyuki; Suzaki, Kotaro; Sakanashi, Hideki Combustion and Flame, Vol. 140, Issue 1-2 https://doi.org/10.1016/j.combustflame.2004.09.009	journal	January 2005

Similar Records

Unsteady deflagration speed of an auto-ignitive dimethyl-ether (DME)/air mixture at stratified conditions

Journal Article · 2018 · Proceedings of the Combustion Institute · OSTI ID:1784187

Desai, Swapnil S.; Sankaran, Ramanan; Im, Hong G.

Unsteady deflagration speed of an auto-ignitive dimethyl-ether (DME)/air mixture at stratified conditions

Journal Article · 2018 · Proceedings of the Combustion Institute · OSTI ID:1565736

Desai, Swapnil; Sankaran, Ramanan; Im, Hong G.

Auto-ignitive deflagration of CH4 blended DME/Air mixtures with composition stratification

Conference · 2018 · OSTI ID:1784192

Desai, Swapnil S.; Sankaran, Ramanan; Im, Hong G.

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Title: Auto-ignitive deflagration speed of methane (CH4) blended dimethyl-ether (DME)/air mixtures at stratified conditions

Citation Formats

References (48)

Similar Records

Related Subjects

Title: Auto-ignitive deflagration speed of methane (CH₄) blended dimethyl-ether (DME)/air mixtures at stratified conditions