Prediction of the Induced Gas Flow Rate from a Self- Inducing Impeller with CFD

• Type: Article in International Scientific Journal
• Date: 2014

Authors

Cláudio P. Fonte (Author) FEUP; Bruno S. Pinho (Author) Other; Vania Santos Moreau (Author) Other; José Carlos B. Lopes (Author) FEUP

Journal

Title: Chemical Engineering and Technology

Vol. 37 No. 4

Pages: 571-579

ISSN: 0930-7516

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 7 Citations

Scopus - 10 Citations

Associated Projects

LA 20 - PROJECTO ESTRATÉGICO - LA 20 - 2013-2014

Other information

Authenticus ID: P-009-8MA

DOI: 10.1002/ceat.201300412

Abstract (EN): The complex task of describing computationally two-phase turbulent flows in aerated stirred-tank reactors was overcome by proposing that the gas flow rate in the hollow impeller can be estimated from single-phase flow simulations of the liquid phase in the reactor: the pressure at the impeller surface obtained from liquid phase simulations can be related to the gas induction rate. A commercial lab-scale reactor with a radial six-bladed hollow impeller was chosen for the study. To validate the presented methodology, the induced gas flow rate was measured experimentally from the tracking of the position of bubbles in a dynamic sequence of flow images. Notwithstanding the simplifications assumed in the presented CFD methodology, good agreement has been obtained between numerical results and experiments.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9