Open-path Fourier transform infrared spectrometry characterization of low temperature combustion gases in biomass fuels uri icon

abstract

  • Accurate determination of gas concentration emitted during thermal degradation (pyrolysis) of biomass in forest fires is one of the keypoints in recent research on physical-based fire spread models. However, it is a very cumbersome task not well solved by classical invasive sensors and procedures. In this work, a methodology to use open-path Fourier transform-based infrared (OP-FTIR) spectrometry has been applied as a remote sensing technique that permits in situ, non-intrusive and simultaneous measurements. Main gaseous byproducts (CO, CO2, CH4 and NH3) have been measured and quantified in terms of path-integrated concentrations. Different emission ratios have been determined for the species under study. These results can help to simplify the modelling of pyrolysis processes inside the physical-based models for fire spread. (c) 2006 Elsevier B.V. All rights reserved.

publication date

  • 2007
  • 2007