TY - JOUR
T1 - Species and temperature profiles of propellant flames obtained from FTIR absorption spectroscopy
AU - Mallery, C. F.
AU - Thynell, S. T.
N1 - Funding Information:
This work was performed under Contract No. DAAL03-92-G-OI18 and supported by Dr. R. W. Shaw of the U.S. Army Research Office, Research Triangle Park, N.C.
PY - 1997
Y1 - 1997
N2 - The use of Fourier transform infrared absorption spectroscopy to obtain species and temperature profiles within solid-propellant flames is described. Measurements were performed at a spectral resolution of 2 cm-1 and a spatial resolution of 1 mm within the flame zone of an RDX-composite propellant. A nonlinear, least-squares routine was developed to deduce the absolute species concentrations of CO, NO, H2O, CO2, HCN, CH4 and N2O as well as the rotational temperature. The deduced temperature profile revealed the presence of dark-zone/luminous flame-zone structures. The mole fraction of CO increased while the mole fraction of HCN decreased from the beginning of the dark zone to the luminous flame zone. Data on the spatial variation of species concentration and temperature within these zones are important for the development and validation of chemical kinetic mechanisms describing the combustion of solid propellants.
AB - The use of Fourier transform infrared absorption spectroscopy to obtain species and temperature profiles within solid-propellant flames is described. Measurements were performed at a spectral resolution of 2 cm-1 and a spatial resolution of 1 mm within the flame zone of an RDX-composite propellant. A nonlinear, least-squares routine was developed to deduce the absolute species concentrations of CO, NO, H2O, CO2, HCN, CH4 and N2O as well as the rotational temperature. The deduced temperature profile revealed the presence of dark-zone/luminous flame-zone structures. The mole fraction of CO increased while the mole fraction of HCN decreased from the beginning of the dark zone to the luminous flame zone. Data on the spatial variation of species concentration and temperature within these zones are important for the development and validation of chemical kinetic mechanisms describing the combustion of solid propellants.
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U2 - 10.1080/00102209708935607
DO - 10.1080/00102209708935607
M3 - Article
AN - SCOPUS:0000363296
SN - 0010-2202
VL - 122
SP - 113
EP - 129
JO - Combustion science and technology
JF - Combustion science and technology
IS - 1-6
ER -