TY - JOUR
T1 - Comparison of scattering phase functions of reacting and non-reacting pulverised fuel particles
AU - Koch, M.
AU - Pörtner, L.
AU - Gu, Y.
AU - Schiemann, M.
AU - Rohlfs, W.
AU - Kneer, R.
N1 - Publisher Copyright:
© 2020
PY - 2021/3/1
Y1 - 2021/3/1
N2 - This study investigates the scattering properties of cold and reacting (burning) particles with focus on the experimental quantification of the complex index of refraction (IOR). The scattering phase function for Colombian bituminous coal is measured experimentally using two different setups and the IOR is determined from these data using an inverse approach. The first experimental setup is designed for single cold fuel particle characterization, with the particle being spatially fixed contactless using an acoustic levitator. In the second setup, the scattering properties of particle streaks, provided by a flat flame burner, are measured, allowing also for reacting particles to be investigated. In both setups, a broadband light source irradiates the single particle/particle streak and the scattered radiation is quantified by a spectrometer placed at altering angular positions. Reacting particles are studied in an oxy-fuel atmosphere. For both setups, Mie theory is used for modelling the optical particle properties.
AB - This study investigates the scattering properties of cold and reacting (burning) particles with focus on the experimental quantification of the complex index of refraction (IOR). The scattering phase function for Colombian bituminous coal is measured experimentally using two different setups and the IOR is determined from these data using an inverse approach. The first experimental setup is designed for single cold fuel particle characterization, with the particle being spatially fixed contactless using an acoustic levitator. In the second setup, the scattering properties of particle streaks, provided by a flat flame burner, are measured, allowing also for reacting particles to be investigated. In both setups, a broadband light source irradiates the single particle/particle streak and the scattered radiation is quantified by a spectrometer placed at altering angular positions. Reacting particles are studied in an oxy-fuel atmosphere. For both setups, Mie theory is used for modelling the optical particle properties.
KW - Complex index of refraction
KW - Mie theory
KW - Scattering phase function
KW - Solid fuel combustion
KW - n/a OA procedure
UR - http://www.scopus.com/inward/record.url?scp=85094927922&partnerID=8YFLogxK
U2 - 10.1016/j.fuel.2020.119415
DO - 10.1016/j.fuel.2020.119415
M3 - Article
AN - SCOPUS:85094927922
SN - 0016-2361
VL - 287
JO - Fuel
JF - Fuel
M1 - 119415
ER -