Shock-tube measurements by laser absorption of CO and H2O time-histories from nitromethane pyrolysis Conference Paper uri icon


  • The recent research work on nitromethane combustion from various groups shows discrepancies between detailed kinetics models and between experimental results for flame speed and ignition delay time. To understand better the nitromethane combustion chemistry and attempt to explain these discrepancies, the time histories of H2O and CO were measured in shock tubes using laser absorption techniques from mixtures of nitromethane diluted in Ar. To limit the number of reactions involved in the formation of these two chemical species, pyrolysis mixtures were used. Two pressures (1 and 2 atm) and dilution conditions were utilized for the water measurements, and only one corresponding condition (2 atm, 98.5% Ar dilution) was studied with CO. Modern detailed kinetics mechanisms were compared to the experimental results obtained during this study, and a chemical analyses was performed. Models tend to over-estimate the experimental concentration data, and the chemical analysis exhibited the need for a better estimate of the reaction rate of CH3+ NO2CH3O + NO.

published proceedings

  • 10th U.S. National Combustion Meeting

author list (cited authors)

  • Mathieu, O., Mulvihill, C., & Petersen, E. L.

complete list of authors

  • Mathieu, O||Mulvihill, C||Petersen, EL

publication date

  • January 2017