A theoretical investigation of enhancement of mass transfer from a packed bed using acoustic oscillations
作者:Raman I. Sujith、Ben T. Zinn
DOI:10.1002/cjce.5450780616
日期:2000.12
describes a theoretical investigation of the possibility of improving the performance of packed bed dryers using acoustic oscillations. It was motivated by the increasing interest in the use of acoustic oscillations to improve the performance of energy-intensive, industrial processes. Sound propagation in a packed bed was modelled as propagation through a porous medium. The effect of acoustic oscillations
本文描述了使用声学振荡提高填充床干燥器性能的可能性的理论研究。它的动机是人们对使用声学振荡来提高能源密集型工业过程的性能越来越感兴趣。填充床中的声音传播被模拟为通过多孔介质的传播。然后通过数值积分传热和传质方程来研究声振荡对干燥速率的影响。该模型使用准稳态相关性进行传热和传质。结果表明存在空隙率和声压级的阈值,超过该阈值可以获得干燥速率的显着增加。传质的增加随着有效粒径而减小。关于 decrit dans cet 文章 une etude theorique sur la possibilite d'arneliorer la performance de sechoirs a lits garnis par des 振荡声学。Cette etude estmotivee par l'interět grandissant pour les 振荡 acoustiques en vue d'ameliorer