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@ARTICLE{Gnendiger:1023023,
      author       = {Gnendiger, Christoph and Schultze, Thorsten and Börger,
                      Kristian and Belt, Alexander and Arnold, Lukas},
      title        = {{E}xtinction coefficients from aerosol measurements},
      journal      = {Fire safety journal},
      volume       = {146},
      issn         = {0378-7761},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2024-01606},
      pages        = {104110 -},
      year         = {2024},
      abstract     = {In this contribution, we develop a model that describes
                      light extinction in the presence of arbitrary aerosols. In
                      doing so, we take advantage of the fact that during
                      measurements with the ELPI+-system, aerosol particles of any
                      shape are internally mapped to spherical surrogates. The
                      developed model is particularly simple and depends on only a
                      few parameters, namely on densities and refractive indices
                      of the measured aerosol particles. As proof of principle,
                      the model is in first applications used to determine
                      extinction coefficients and mass-specific extinction for an
                      infrared light source with a peak wave length of 880 nm.
                      Detailed studies concentrate on two aerosols exemplary for
                      characteristic values of the input parameters: a paraffin
                      aerosol in a bench-scale setup and soot from a flaming
                      n-heptane fire in a room-scale setup (test fire TF5
                      according to EN54). As main results, we find values for
                      mass-specific extinction that are different in the
                      considered cases. Moreover, obtained results differ in part
                      more than a factor of three from literature values typically
                      used in practical applications. We explicitly assess reasons
                      for deviations found and finally propose a simple way how
                      future light-extinction studies can be performed
                      comparatively easily using the ELPI+-system.},
      cin          = {IAS-7},
      ddc          = {690},
      cid          = {I:(DE-Juel1)IAS-7-20180321},
      pnm          = {5111 - Domain-Specific Simulation $\&$ Data Life Cycle Labs
                      (SDLs) and Research Groups (POF4-511)},
      pid          = {G:(DE-HGF)POF4-5111},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001199438400001},
      doi          = {10.1016/j.firesaf.2024.104110},
      url          = {https://juser.fz-juelich.de/record/1023023},
}