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

Title: High temperature infrared absorption cross sections of methane near 3.4 µm in Ar and CO2 mixtures

Journal Article · · Journal of Quantitative Spectroscopy and Radiative Transfer
 [1];  [2];  [2];  [3];  [2]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Physical and Life Sciences; Univ. of Central Florida, Orlando, FL (United States). Mechanical and Aerospace Engineering, Center for Advanced Turbomachinery and Energy Research (CATER)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Physical and Life Sciences
  3. Univ. of Central Florida, Orlando, FL (United States). Department of Physics
+ Show Author Affiliations

In this study, the absorption cross-sections of CH4 at two wavelengths in the mid-IR region: λpeak = 3403.4 nm and λvalley = 3403.7 nm were measured. Data were taken using three different compositions of non-reactive gas mixtures comprising CH4/Ar/CO2 between 700 < T < 2000 K and 0.1 < P < 1.5 atm in a shock tube utilizing a continuous-wave distributed-feedback quantum cascade laser. Also, broadband room temperature methane cross section measurements were performed using a Fourier transform infrared spectrometer and the cascade laser to gain a better insight into the changes of the line shapes in various bath gasses (Ar, CO2, and N2). An application of the high-temperature cross-section data was demonstrated to determine the concentration of methane during oxy-methane combustion in a mixture of CO2, O2, and Ar. Lastly, current measurements will be valuable addition to the spectroscopy database for methane- an important fuel used for power generation and heating around the world.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344; FE0025260; HDTRA1-16-1-0009; DEAC52-07NA27344
OSTI ID:
1426096
Alternate ID(s):
OSTI ID: 1549508
Report Number(s):
LLNL-JRNL-733790; TRN: US1802220
Journal Information:
Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 206, Issue C; ISSN 0022-4073
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

References (26)

Shock tube ignition delay times and methane time-histories measurements during excess CO2 diluted oxy-methane combustion journal February 2016
Methane Ignition in a Shock Tube with High Levels of CO 2 Dilution: Consideration of the Reflected-Shock Bifurcation journal October 2015
Measurements and interpretation of shock tube ignition delay times in highly CO2 diluted mixtures using multiple diagnostics journal June 2017
Experimental Design for Discrimination of Chemical Kinetic Models for Oxy-Methane Combustion journal April 2017
The structure of swirl-stabilized turbulent premixed CH4/air and CH4/O2/CO2 flames and mechanisms of intense burning of oxy-flames journal December 2016
High-sensitivity interference-free diagnostic for measurement of methane in shock tubes journal May 2015
High-temperature measurements of methane and acetylene using quantum cascade laser absorption near 8 μm journal April 2015
Multi-species time-history measurements during high-temperature acetone and 2-butanone pyrolysis journal January 2013
Methane and ethylene time-history measurements in n-butane and n-heptane pyrolysis behind reflected shock waves journal June 2013
Interference-free mid-IR laser absorption detection of methane journal January 2011
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
Intensities, broadening and narrowing parameters in the ν 3 band of methane journal December 2014
Measurements of the broadening and shift parameters of methane spectral lines in the 5550–6140cm−1 region induced by pressure of carbon dioxide journal November 2014
CO2-broadening coefficients in the ν4 fundamental band of methane at room temperature and application to CO2-rich planetary atmospheres journal March 2014
Absorption cross-section measurements of methane, ethane, ethylene and methanol at high temperatures journal September 2014
Propionaldehyde infrared cross-sections and band strengths journal February 2015
A Hierarchical and Comparative Kinetic Modeling Study of C 1 − C 2 Hydrocarbon and Oxygenated Fuels : KINETIC STUDY OF C journal August 2013
The use of biodiesel blends on a non-road generator and its impacts on ozone formation potentials based on carbonyl emissions journal July 2013
Gas-Phase Databases for Quantitative Infrared Spectroscopy journal December 2004
The HITRAN2012 molecular spectroscopic database journal November 2013
Limitations of the Reflected Shock Technique for Studying Fast Chemical Reactions and Its Application to the Observation of Relaxation in Nitrogen and Oxygen journal January 1959
Measurement of Reflected-shock Bifurcation Over a Wide Range of Gas Composition and Pressure journal June 2006
N2 and Ar broadening and line mixing in the P and R branches of the v3 band of CH4 journal February 1997
Absorption of the 3.39 μm He-Ne laser line by methane from 300 to 2400 K journal August 1978
Autoignition Delay Time Measurements of Methane, Ethane, and Propane Pure Fuels and Methane-Based Fuel Blends journal June 2010
Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO2 journal December 2015

Similar Records

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY