Quasi-random narrow-band model fits to near-infrared low-temperature laboratory methane spectra and derived exponential-sum absorption coefficients

1993 ◽  
Vol 98 (E3) ◽  
pp. 5517-5529 ◽  
Author(s):  
Kevin H. Baines ◽  
Robert A. West ◽  
Lawrence P. Giver ◽  
Fernando Moreno
Keyword(s):  
Low Temperature ◽  
Near Infrared ◽  
Narrow Band ◽  
Exponential Sum ◽  
Band Model ◽  
Absorption Coefficients ◽  
Narrow Band Model ◽  
Model Fits

Determination of Planck Mean Absorption Coefficients for HBr, HCl, and HF

2001 ◽  
Vol 124 (1) ◽  
pp. 26-29 ◽  
Author(s):  
S. P. Fuss ◽  
A. Hamins
Keyword(s):  
Absorption Coefficient ◽  
Narrow Band ◽  
Band Model ◽  
Absorption Coefficients ◽  
Temperature Range ◽  
Average Value ◽  
Integrated Intensity ◽  
Using Data ◽  
Narrow Band Model

The Planck mean absorption coefficient, ap, has been calculated for HBr, HCl, and HF over a temperature range from 300 K–2300 K using data from the 1996 edition of the HITRAN molecular database. Plots of ap versus temperature showed monotonically decreasing behavior over this temperature range, with peak values at 300 K of 45.9 (atm-m)−1, 5.3 (atm-m)−1, and 1.95 (atm-m)−1 for HF, HCl, and HBr, respectively. The magnitude of these values suggests that HBr, HCl, and HF can significantly impact calculations of radiative transfer in flames containing these species. Two sets of additional calculations were performed for CO to validate the methodology used for calculation of ap for HBr, HF, and HCl. In the first approach, which employed the narrow band model RADCAL, the calculation procedure was similar to that of the present calculations. The second approach utilized tabulated values of the integrated intensity for each CO band and an average value of the Planck function within each band. Results from the three methods showed general agreement. Polynomial expressions are provided as fits to ap as a function of temperature for HBr, HCl, HF, and CO.

Narrow-band model

1977 ◽  
Vol 12 (4) ◽  
pp. 211-212
Author(s):  
J W Warren ◽  
B K Tanner
Keyword(s):  
Narrow Band ◽  
Band Model ◽  
Narrow Band Model

Narrow-band model revisited

1976 ◽  
Vol 11 (7) ◽  
pp. 452-453
Author(s):  
B K Tanner
Keyword(s):  
Narrow Band ◽  
Band Model ◽  
Narrow Band Model

Application of a Statistical Narrow Band Model to CFD Modelling of Upward Flame Spread Over PMMA Walls

2006 ◽  
Vol 16 (1) ◽  
pp. 1-19
Author(s):  
J. Zhang ◽  
S. Dembele ◽  
J. X. Wen ◽  
M. A. Delichatsios
Keyword(s):  
Flame Spread ◽  
Narrow Band ◽  
Band Model ◽  
Cfd Modelling ◽  
Upward Flame Spread ◽  
Narrow Band Model
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