Geometrical modifications of the anchor impeller to enhance the overall performances in stirred tanks
author:
Houari Ameur, Youcef Kamla
ORCID ID:
0000-0003-2087-7574, 0000-0002-3428-4748
No:
6/2020 Instal p. 42-45
DOI:
10.36119/15.2020.6.5
The performance of modified anchor impellers in stirred tanks is investigated. The classical anchor impeller is taken as
a reference, then the upper part of the blade arm is curved at different degrees (α). Three geometrical configurations
are explored, namely: α = 0° (which corresponds to the standard shape of anchor impellers), 45°, and 90°. The study
is achieved numerically by using a finite volume method based CFD tool. The case of highly viscous Newtonian fluids
under laminar flow conditions is considered. From the obtained results, the newly modified anchor impeller has allowed an enhancement in the axial circulation of liquid and a reduction in power requirements. The curved blade with
90° yielded a decrease in power number by about 2.5%, compared to the classical anchor impeller.
Keywords:
About Authors:
prof. Houari Ameur – https://orcid.org/0000-0003-2087-7574, Department of Technology, University Centre of Naama, Ahmed Salhi P.O.
Box 66, Naama 45000, Algeria; dr Youcef Kamla – https://orcid.org/0000-0002-3428-4748, Faculty of Technology, University Hassiba Ben
Bouali of Chlef, Algeria. Corresponding author: houari_ameur@yahoo.fr, ameur@cuinv-naama.dz