Comprehensive Assessment of Particle-Scale Modeling for Biomass Pyrolysis: One-Dimensional versus Three-Dimensional Models

The present work examines the impact of dimensionality single-particle models (SPMs) for pyrolysis thermally thick biomass particles. It builds up comprehensive one- and three-dimensional SPMs assesses their performances to gain a systematic understanding accuracy predicted results, predictive capability, computational costs. Cylindrical wheat straw pellets with an average size 10 mm length 7 diameter were studied on at temperatures ranged from 200 700 °C. investigates correlation between inner heating rate particle resulting irregular porosity distribution in pyrolyzed particle. predictions are good agreement experimental measurement, they show that char yield is not sensitive model dimensionality; however, mass loss dimensionality. Additionally, SPM found be compatible wider range types. captures higher surface center compared region between. This linked uneven particle, which While provides small improvement prediction temperature profile one-dimensional but offers additional details (e.g., distribution, rate, inside particle); it requires significantly greater times, might justifiable many situations.