POWER CONSUMPTION FOR MIXING OF SHEAR-THINNING FLUIDS

Authors

  • Adina GHIRIŞAN (MICLĂUŞ) Babeş-Bolyai University, Faculty of Chemistry and Chemical Engineering, 11 Arany Janos str., RO-400028, Cluj-Napoca, Romania. https://orcid.org/0000-0002-4625-6525
  • Vasile MICLĂUŞ Babeş-Bolyai University, Faculty of Chemistry and Chemical Engineering, 11 Arany Janos str., RO-400028, Cluj-Napoca, Romania. *Corresponding author: vasile.miclaus@ubbcluj.ro https://orcid.org/0000-0002-4625-6525

DOI:

https://doi.org/10.24193/subbchem.2021.2.21

Keywords:

mixing, agitation, Reynolds number, power number, power consumption, non-Newtonian fluids, shear-thinning fluids.

Abstract

The mixing/agitation of time independent non-Newtonian fluids can be a challenge in many technological processes. In the present study, the influence of rheological parameters, K and n, on Reynolds number, power number and power consumption, for different concentration of carboxymethyl cellulose (CMC) solutions, 1%, 2%, 3%, 4 % and 5%, with shear-thinning behaviour, was analysed. The power consumption obtained by theoretical model and by an appropriate curve Po = f(Re) from experimental data, found in literature, was compared. The results have shown good agreement between calculated power number and the graphically determined values, and also minimal power consumption values comparable with those founded for the agitation of non-Newtonian liquids.

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Published

2021-06-30

How to Cite

GHIRIŞAN (MICLĂUŞ), A., & MICLĂUŞ, V. (2021). POWER CONSUMPTION FOR MIXING OF SHEAR-THINNING FLUIDS. Studia Universitatis Babeș-Bolyai Chemia, 66(2), 247–254. https://doi.org/10.24193/subbchem.2021.2.21

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