A semi-mechanistic model of hydrocyclones — Developed from industrial data and inputs from CFD

M, Narasimha and A N, Mainza and P N, Holtham and M S, Powell and M S, Brennan (2014) A semi-mechanistic model of hydrocyclones — Developed from industrial data and inputs from CFD. International Journal of Mineral Processing, 133. pp. 1-12. ISSN 0301-7516

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Abstract

The flow behavior in hydrocyclones is extremely complex, leading the designers to rely on empirical equations for predicting cyclone performance. A number of classifying cyclone models have been developed and used in mineral comminution circuit simulators in the past. The problem with these empirical cyclone models is that they cannot be used outside the range of conditions under which they were developed. A semi-mechanistic hydrocyclone model is developed using the dimensionless approach based on both the fluid mechanics concepts from Computational Fluid Dynamics (CFD) simulations and the wide range of industrial cyclone performance data. The improved model consist a set of equations for the water split to underflow (Rf), reduced cut-size (d50c), throughput (Q) and sharpness of the separation (α). The model for Rf, d50c, Q gives a very good fit to the data. The alpha model shows reasonable correlation for the cyclone design and operating conditions. Additional data sets were used to validate the new hydrocyclone model by comparing the predictions of the model equations with the experimental results.

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IITH Creators:
IITH CreatorsORCiD
M, Narasimhahttp://orcid.org/0000-0002-3123-2811
Item Type: Article
Additional Information: The authors would like to express their sincere thanks to Prof. Emmy Manlapig, Manager, AMIRA P9N, JKMRC, University of Queensland, Australia, and AMIRA-P9N & P9O research sponsors and management, for their keen interest, encouragement and funding for undertaking these studies
Uncontrolled Keywords: Hydrocyclone; Mathematical modeling; Computational Fluid Dynamics; Classification
Subjects: Chemical Engineering > Biochemical Engineering
Divisions: Department of Chemical Engineering
Depositing User: Team Library
Date Deposited: 17 Mar 2015 07:11
Last Modified: 13 Jul 2017 11:17
URI: http://raiith.iith.ac.in/id/eprint/1403
Publisher URL: https://doi.org/10.1016/j.minpro.2014.08.006
OA policy: http://www.sherpa.ac.uk/romeo/issn/0301-7516/
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