سال انتشار: ۱۳۸۶

محل انتشار: پنجمین کنگره بین المللی مهندسی شیمی

تعداد صفحات: ۹

نویسنده(ها):

Ahmadi Motlagh – Computational Fluid Dynamics Research Laboratory, Department of Chemical Engineering, Iran University of Science and Technology, 16846, Tehran, Iran
Hashemabadi – Computational Fluid Dynamics Research Laboratory, Department of Chemical Engineering, Iran University of Science and Technology, 16846, Tehran, Iran

چکیده:

The mass and heat transfer characteristics of a randomly packed bed of cylindrical particles were investigated. The goal of the present study is to assess whether commercial Computational Fluid Dynamics(CFD) software can be used to adequately predict the rate of mass and heat transfer from the cylindrical catalyst particles to the fluid in a randomly packed-bed. The simulations were done by FEMLAB ,commercial CFD software, and the results were validated by naphthalene sublimation mass transfer experiments. These experiments were carried out to obtain the corresponding Sherwood numbers from the sublimation rate of naphthalene based on which the Nusselt numbers were found by the use of analogy between mass and heat transfer. It is shown that the CFD code can predict the heat/mass transfer characteristics, with an acceptable average error compared to experimental values.