Advertisement

Atmospheric and Oceanic Optics

, Volume 23, Issue 6, pp 478–484 | Cite as

The influence of the bark of wooden materials on optical-microphysical properties of pyrolysis smoke

  • R. F. Rakhimov
  • E. V. Makienko
  • V. S. Kozlov
Optics of Clusters, Aerosols, and Hydrosoles

Abstract

The variability of optical-microphysical properties of pyrolysis smokes, formed during thermal decomposition of some wooden samples (barkless birch, birch bark, and larch bark), is studied. The results of solution of the inverse problem using data from spectral nephelometric measurements have shown that the component of particles strongly absorbing radiation can be generated at comparatively low temperature of pyrolysis. The strongly absorbing fine fraction of soot particles with a radius of less than 200 nm is observed in the size spectrum of the pyrolysis smoke of birch and larch bark. The larger particles are weakly absorbing, but the imaginary part of their refraction index increases when smoke persists, because of interaction with the “soot” component. The estimates have shown that no significant differences appear in the absorption of smoke particles formed by birch and larch barks. However, the fine parts of soot particles is absent in the barkless birch smoke; i.e., the absorption of particles throughout the size range is weak.

Keywords

Pyrolysis Smoke Bark Aerosol Optical Depth Soot Particle 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    R. F. Rakhimov, V. S. Kozlov, E. V. Makienko, and V. P. Shmargunov, “Variation of the Microstructure of Wood Smokes in Small-Size Aerosol Chamber under the Influence of External Factors,” Opt. Atmosf. Okeana. 16, 337–346 (2003).Google Scholar
  2. 2.
    R. F. Rakhimov, V. S. Kozlov, and E. V. Makienko, “Some Peculiarities of Formation of Smoke Aerosol Dispersion Structure at Thermal Decomposition of Needle Wood, 1. Variations of the Mass of Burned Samples,” Opt. Atmosf. Okeana 21, 218–222 (2008).Google Scholar
  3. 3.
    R. F. Rakhimov, V. S. Kozlov, and E. V. Makienko, “Some Peculiarities of Formation of Smoke Aerosol Dispersion Structure at Thermal Decomposition of Needle Wood, 2. Variations of Temperature,” Opt. Atmosf. Okeana 21, 288–293 (2008).Google Scholar
  4. 4.
    R. F. Rakhimov, V. S. Kozlov, and E. V. Makienko, “Some Peculiarities of Formation of Smoke Aerosol Dispersion Structure at Thermal Decomposition of Needle Wood, 3. Afterburning of Non-Decomposed Residuals,” Opt. Atmosf. Okeana 21, 386–392 (2008).Google Scholar
  5. 5.
    R. F. Rakhimov and E. V. Makienko, “Some Methodical Additions to the Solution of the Inverse Problem of Retrieving the Dispersion Structure Parameters of Smokes of Mixed Composition,” Opt. Atmosf. Okeana 23, 183–189 (2010).Google Scholar
  6. 6.
    R. F. Rakhimov, V. N. Uzhegov, E. V. Makienko, and Yu. A. Pkhalagov, “Obtaining the Most Probable Value of the Aerosol Extinction Coefficient of Atmospheric Haze from Long-Term Series of Observations Along a Near-Ground Horizontal Path,” Opt. Atmosf. Okeana 18, 566–573 (2005) [Atmosph. Ocean. Opt. 18, 506 (2005)].Google Scholar
  7. 7.
    R. F. Rakhimov, D. M. Kabanov, and E. V. Makienko, “Analysis of Haze Disperse Composition Variation at Increase of Atmospheric Turbulence by AOT Measurements in Tomsk,” Opt. Atmosf. Okeana 19, 841–850 (2006).Google Scholar
  8. 8.
    R. F. Rakhimov, V. N. Uzhegov, E. V. Makienko, and Yu. A. Pkhalagov, “The Micro-Physical Interpretation of the Seasonal and Diurnal Variability of the Spectral Ependence of Aerosol Extinction on Near-Ground Paths,” Opt. Atmosf. Okeana 17, 386–404 (2004).Google Scholar
  9. 9.
    S. V. Afonin and V. V. Belov, “System of Satellite Monitoring of Forest Fires on Tomsk Region Territory. 2. Estimation of Satellite Monitoring Efficiency,” Opt. Atmosf. Okeana 14, 692–696 (2001).Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • R. F. Rakhimov
    • 1
  • E. V. Makienko
    • 1
  • V. S. Kozlov
    • 1
  1. 1.Zuev Institute of Atmospheric Optics, Siberian BranchRussian Academy of SciencesTomskRussia

Personalised recommendations