STUDY OF PARTICLE IN CYCLONES

STUDY OF PARTICLE IN CYCLONES

VALVERDE-RAMIREZ, M.; GONçALVES, J. A. S

Artigo:

The turbulent gas - particle flows in cyclone was simulated considering the transfer of momentum by one-way coupling and two-way coupling. the cyclone diameter was 0.3 m. mono-dispersed particle in diluted flow was injected. the size of the particle injected in the cyclone were 1 -5 m. the inlet gas velocity was 20 m/s. the euler - lagrange modeling approach has been was used in the simulate. the turbulence model used was the reynolds stress model, which has been reported to give good results for cyclones. particle trajectories were calculated by the discrete phase model. simulations were made for both one-way (when the gas movement is not affected by the presence of the articles) and two-way coupling (when both phases influence each other). the efficiency of collection, tangential velocity and axial velocity were obtained for both coupling schemes. the results show the some behavior for the mean tangential velocity and mean axial velocity when are simulated using with one-way coupling and two-way coupling. the collection efficiency has a light variation between one-way and two way coupling. the numerical data were agreement with the experimental data. Keywords: cyclone, one-way coupling, two-way coupling, efficiency of collection.

The turbulent gas - particle flows in cyclone was simulated considering the transfer of momentum by one-way coupling and two-way coupling. the cyclone diameter was 0.3 m. mono-dispersed particle in diluted flow was injected. the size of the particle injected in the cyclone were 1 -5 m. the inlet gas velocity was 20 m/s. the euler - lagrange modeling approach has been was used in the simulate. the turbulence model used was the reynolds stress model, which has been reported to give good results for cyclones. particle trajectories were calculated by the discrete phase model. simulations were made for both one-way (when the gas movement is not affected by the presence of the articles) and two-way coupling (when both phases influence each other). the efficiency of collection, tangential velocity and axial velocity were obtained for both coupling schemes. the results show the some behavior for the mean tangential velocity and mean axial velocity when are simulated using with one-way coupling and two-way coupling. the collection efficiency has a light variation between one-way and two way coupling. the numerical data were agreement with the experimental data. Keywords: cyclone, one-way coupling, two-way coupling, efficiency of collection.

Palavras-chave:

DOI: 10.5151/chemeng-cobeq2014-0094-27068-163082

Referências bibliográficas

• [1]

Como citar:

VALVERDE-RAMIREZ, M. ; GONçALVES, J. A. S ; "STUDY OF PARTICLE IN CYCLONES", p-5242-5249. In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 23591757, DOI 10.5151/chemeng-cobeq2014-0094-27068-163082