Numerical Simulation of Biomass Gasification in an Entrained Flow Cyclone Gasifier

Document identifier: oai:DiVA.org:ltu-77487
Access full text here:10.1021/acs.energyfuels.9b03942
Keyword: Engineering and Technology, Mechanical Engineering, Energy Engineering, Teknik och teknologier, Maskinteknik, Energiteknik, Fluid Mechanics and Acoustics, Strömningsmekanik och akustik, Strömningslära, Fluid Mechanics
Publication year: 2020
Relevant Sustainable Development Goals (SDGs):
SDG 7 Affordable and clean energy
The SDG label(s) above have been assigned by OSDG.ai

Abstract:

A transient, two-way coupled Eulerian−Lagrangian computational fluid dynamics model has been developed for numerically investigating the gasification process of wood powder inside a cyclone-shaped reactor. The suggested model has considered heat and mass transfer, drying, devolatilization, and homogeneous and heterogeneous reactions. The model is validated using the experimental data from a commercial entrained-flow cyclone gasifier. The changes in gas composition as a function of equivalence ratio and the behavior of gasification process agreed well with the experimental measurement. Trajectories of individual particles were captured, and the behavior, mass fraction, and temperature distribution of several representative particles in different sizes were studied. Moreover, the model was successful in prediction of produced gas lower heating value, cold gas efficiency, and carbon conversion.

Authors

Pantea Hadi Jafari

Luleå tekniska universitet; Energivetenskap
Other publications >>

Mikael Risberg

Luleå tekniska universitet; Energivetenskap
Other publications >>

J. Gunnar I. Hellström

Luleå tekniska universitet; Strömningslära och experimentell mekanik
Other publications >>

Rikard Gebart

Luleå tekniska universitet; Energivetenskap
Other publications >>

Record metadata

Click to view metadata