CFD simulation of gas hold-up as an important hydrodynamic parameter in an airlift reactor with net draft tube

Publish Year: 1396
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

CHCONF04_319

تاریخ نمایه سازی: 8 آذر 1396

Abstract:

In this work, the gas hold-up in the airlift reactor with net draft tube was simulated and theperformances of two drag models are evaluated in computational fluid dynamics (CFD) simulation. Therange of superficial gas velocity was 0.94 -9.44 cm/s. A two-phase flow model provided by the bubbly flowapplication mode was employed in this project. In the liquid phase, the turbulence can be described usingthe k-ε model. Simulated gas holdup results were compared with experimental data obtained from theliterature. The predictions of the simulation are in good agreement with the experimental data.

Authors

Mehran Nalband

Department of Chemical Engineering, Urmia University of Technology, Urmia, Iran

Elham Jalilnejad

Department of Chemical Engineering, Urmia University of Technology, Urmia, Iran