Quantitative analysis of remote gas temperatures and concentrations from their infrared emission spectra
Hilton, M., Lettington, A. H. and Mills, I. (1995) Quantitative analysis of remote gas temperatures and concentrations from their infrared emission spectra. Journal of Measurement Science and Technology, 6 (9). p. 1236.
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To link to this article DOI: 10.1088/0957-0233/6/9/002
Techniques for obtaining quantitative values of the temperatures and concentrations of remote hot gaseous effluents from their measured passive emission spectra have been examined in laboratory experiments and on field trials. These emission spectra were obtained using an adapted FTIR spectrometer with 0.25 cm-1 spectral resolution. The CO2 and H2O vapour content in the plume from a 55 m smoke stack and the temperature of these gases were obtained by comparing the measured emission spectra with those modelled using the HITRAN atmospheric transmission database. The spatial distributions of CO2, CO and unburnt CH4 in a laboratory methane flame were reconstructed tomographically using a matrix inversion technique.
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