@ARTICLE{Naydenova_Iliyana_Shrinking_2024,
 author={Naydenova, Iliyana and Sandov, Ognyan},
 volume={vol. 27},
 number={No 4},
 pages={121–132},
 journal={Polityka Energetyczna - Energy Policy Journal},
 howpublished={online},
 year={2024},
 publisher={Instytut Gospodarki Surowcami Mineralnymi i Energią PAN},
 abstract={In the context of the Net Zero Emission, using of biomass of different origins is assumed to be an acceptable alternative to fossil fuel thermo-chemical conversion for power generation or goods production. Biomass combustion is characterised by heterogeneous kinetics, where the oxidised substance is in a solid state. The reaction takes place primarily along the surface separating the two phases. The rate of combustion can be expressed by the amount of reacted substance per unit surface area or, alternatively , by the diameter or mass loss profile. The present investigation aimed to study shrinking characteristics during single particle combustion of spherically shaped solid (softwood) particles. The experiment was conducted in a laboratory scale Horizontal Tube Furnace (HTF) type reactor. The initial and resulting particle mass and diameter were experimentally measured, based on which the fuel particle density, surface, and volume were estimated for each biomass particles. The dimensional evolution of the fuel particle was investigated in terms of the effect of temperature and residence time of the fuel particles in the reaction zone. The experiments were carried out at atmospheric pressure, constant air flow rate, and at two different temperatures (700 and 800°C). The particle shrinkage improved with increasing the residence time, until the process reached its final stage of residual combustion. The studied temperature range showed faint but distinct temperature dependence.},
 title={Shrinking characteristics of a single biomass particle in oxidation conditions},
 type={Article},
 URL={http://journals.pan.pl/Content/133606/PDF/07-PE-04-NAYDENOVA%20i%20inni.pdf},
 keywords={biomass conversion, single particle combustion, solid biofuel particle shrinking},
}