skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: New insights into the shock tube ignition of H2/O2 at low to moderate temperatures using high-speed end-wall imaging

Journal Article · · Combustion and Flame
 [1];  [2];  [1];  [1];  [1];  [1];  [1];  [1]; ORCiD logo [1]
  1. Univ. of Central Florida, Orlando, FL (United States)
  2. Univ. of Central Florida, Orlando, FL (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

In this study, the effects of pre-ignition energy releases on H2—O2 mixtures were explored in a shock tube with the aid of high-speed imaging and conventional pressure and emission diagnostics. Ignition delay times and time-resolved camera image sequences were taken behind the reflected shockwaves for two hydrogen mixtures. High concentration experiments spanned temperatures between 858 and 1035 K and pressures between 2.74 and 3.91 atm for a 15% H2\18% O2\Ar mixture. Low concentration data were also taken at temperatures between 960 and 1131 K and pressures between 3.09 and 5.44 atm for a 4% H2\2% O2\Ar mixture. These two model mixtures were chosen as they were the focus of recent shock tube work conducted in the literature. Experiments were performed in both a clean and dirty shock tube facility; however, no deviations in ignition delay times between the two types of tests were apparent. The high-concentration mixture (15%H2\18%O2\Ar) experienced energy releases in the form of deflagration flames followed by local detonations at temperatures < 1000 K. Measured ignition delay times were compared to predictions by three chemical kinetic mechanisms: GRI-Mech 3.0, AramcoMech 2.0, and Burke's et al. (2012) mechanisms. It was found that when proper thermodynamic assumptions are used, all mechanisms were able to accurately predict the experiments with superior performance from the well-validated AramcoMech 2.0 and Burke et al. mechanisms. Current work provides better guidance in using available literature hydrogen shock tube measurements, which spanned more than 50 years but were conducted without the aid of high-speed visualization of the ignition process, and their modeling using combustion kinetic mechanisms.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE; National Aeronautics and Space Administration (NASA); National Science Foundation (NSF)
Grant/Contract Number:
AC52-07NA27344; FE0025260; 1144246; DEAC52-07NA27344
OSTI ID:
1404847
Alternate ID(s):
OSTI ID: 1549264
Report Number(s):
LLNL-JRNL-729739
Journal Information:
Combustion and Flame, Vol. 187, Issue C; ISSN 0010-2180
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 50 works
Citation information provided by
Web of Science

References (57)

Experimental study and modeling of shock tube ignition delay times for hydrogen–oxygen–argon mixtures at low temperatures journal January 2009
The oxidation of 2-butene: A high pressure ignition delay, kinetic modeling study and reactivity comparison with isobutene and 1-butene journal January 2017
Comprehensive H2/O2 kinetic model for high-pressure combustion journal December 2011
Hydrogen-fueled internal combustion engines journal December 2009
The hydrogen-fueled internal combustion engine: a technical review journal August 2006
Propellant injection in a liquid oxygen/gaseous hydrogen rocket engine journal November 1996
Using Hydrogen as Gas Turbine Fuel
  • Chiesa, Paolo; Lozza, Giovanni; Mazzocchi, Luigi
  • ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference, Volume 3: Turbo Expo 2003 https://doi.org/10.1115/GT2003-38205
conference February 2009
A novel gas turbine cycle with hydrogen-fueled chemical-looping combustion journal December 2000
Shock tube study on ignition delay of hydrogen and evaluation of various kinetic models journal August 2016
Weak and strong ignition of hydrogen/oxygen mixtures in shock-tube systems journal January 2015
Uncertainty-quantification analysis of the effects of residual impurities on hydrogen–oxygen ignition in shock tubes journal January 2014
Shock-tube study of the initiation process in the hydrogen-oxygen reaction journal August 1971
Shock-tube study of the induction-period kinetics of the hydrogen-oxygen reaction journal October 1970
A shock tube study of recombination in the hydrogen-oxygen reaction using infrared emission from water vapor journal February 1970
Shock-tube study of the hydrogen-oxygen reaction journal January 1965
Ignition of syngas/air and hydrogen/air mixtures at low temperatures and high pressures: Experimental data interpretation and kinetic modeling implications journal January 2008
Application of laser ignition to hydrogen?air mixtures at high pressures journal March 2005
Homogeneous ignition of hydrogen-air mixtures over platinum journal January 1996
Weak and strong ignition. II. Sensitivity of the hydrogenoxygen system journal January 1982
An updated comprehensive kinetic model of hydrogen combustion journal January 2004
Laminar flame speeds and extinction strain rates of mixtures of carbon monoxide with hydrogen, methane, and air journal January 1994
An experimental and computational study of the burning rates of ultra-lean to moderately-rich H2/O2/N2 laminar flames with pressure variations journal January 1991
Autoignition of H2/CO at elevated pressures in a rapid compression machine journal January 2006
An experimental and detailed chemical kinetic modeling study of hydrogen and syngas mixture oxidation at elevated pressures journal June 2013
Ignition of shock-heated H2-air-steam mixtures journal April 2003
Hetero-/homogeneous combustion of syngas mixtures over platinum at fuel-rich stoichiometries and pressures up to 14 bar journal January 2015
An experimental and numerical investigation of homogeneous ignition in catalytically stabilized combustion of hydrogen/air mixtures over platinum journal March 2002
Effects of hydrogen preconversion on the homogeneous ignition of fuel-lean H2/O2/N2/CO2 mixtures over platinum at moderate pressures journal October 2010
Hetero-/homogeneous combustion of hydrogen/air mixtures over platinum at pressures up to 10bar journal January 2009
Homogeneous ignition of CH4/air and H2O and CO2-diluted CH4/O2 mixtures over Pt; an experimental and numerical investigation at pressures up to 16bar journal January 2005
OH concentration time histories inn-alkane oxidation journal January 2001
The Ignition of gas mixtures by impulsive pressures journal January 1948
Measurements and interpretation of shock tube ignition delay times in highly CO2 diluted mixtures using multiple diagnostics journal June 2017
High temperature shock tube experiments and kinetic modeling study of diisopropyl ketone ignition and pyrolysis journal March 2017
Measurements of Propanal Ignition Delay Times and Species Time Histories Using Shock Tube and Laser Absorption: MEASUREMENTS OF PROPANAL IGNITION DELAY TIMES AND SPECIES TIME HISTORIES journal July 2016
Shock tube ignition delay times and methane time-histories measurements during excess CO2 diluted oxy-methane combustion journal February 2016
Shock Tube Study of Syngas Ignition in Rich CO 2 Mixtures and Determination of the Rate of H + O 2 + CO 2 → HO 2 + CO 2 journal March 2011
Shock-Tube Experiments and Kinetic Modeling of Toluene Ignition journal July 2010
A comparison between constant volume induction times and results from spatially resolved simulation of ignition behind reflected shocks: implications for shock tube experiments journal August 2012
Chemical-kinetic modeling of ignition delay: Considerations in interpreting shock tube data journal March 2010
Interpreting shock tube ignition data journal January 2004
Development of an aerosol shock tube for kinetic studies of low-vapor-pressure fuels journal October 2008
Shock tube ignition measurements of iso-octane/air and toluene/air at high pressures journal January 2005
Analysis of pre-ignition to super-knock: Hotspot-induced deflagration to detonation journal March 2015
An experimental investigation of iso-octane ignition phenomena journal August 2007
Shock tube study of the ignition of lean n-heptane/air mixtures at intermediate temperatures and high pressures journal January 2005
Self-ignition of S.I. engine model fuels: A shock tube investigation at high pressure journal June 1997
Auto-ignition of hydrocarbons behind reflected shock waves journal June 1972
High-speed OH* chemiluminescence imaging of ignition through a shock tube end-wall journal March 2016
Fuel-rich n-heptane oxidation: A shock tube and laser absorption study journal November 2017
High Pressure Shock Tube Ignition Delay Time Measurements During Oxy-Methane Combustion With High Levels of CO2 Dilution journal March 2017
Contact Surface Tailoring in a Chemical Shock tube journal September 1963
Nonideal effects behind reflected shock waves in a high-pressure shock tube journal January 2001
Constrained reaction volume approach for studying chemical kinetics behind reflected shock waves journal September 2013
On the shock-induced ignition of explosive gases journal January 1971
Coherence theory of the strong ignition limit journal August 1971
Shock-tube study of the ignition of methane/ethane/hydrogen mixtures with hydrogen contents from 0% to 100% at different pressures journal January 2009

Cited By (4)