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Licensed Unlicensed Requires Authentication Published by De Gruyter November 19, 2021

Development of a CFD-based simulation model and optimization of thermal diffusion column: application on noble gas separation

  • Hamed Eghbalahmadi , Parissa Khadiv-Parsi EMAIL logo , Seyed Mohammad Ali Mousavian and Mohammad Hosein Eghbal Ahmadi ORCID logo

Abstract

In this study, numerical simulations were carried out to investigate the separation of the helium-argon gas mixture by thermal diffusion column. This research determined the significant parameters and their effects on the process performance. Effects of feed flow rate, cut ratio, and hot wire temperature in a 950 mm height column with an inner tube of 9.5 mm radius were examined through the simulation of the thermal diffusion column. For minimizing the number of simulations and obtaining the optimum operating conditions, response surface methodology (RSM) was used. Analysis of separative work unit (SWU) values as a target function for helium-argon separation clearly showed that the maximum amount of SWU in thermal diffusion column was achieved, when hot wire temperature increased as large as technically possible, and the feed rate and cut ratio were equal to 55 Standard Cubic Centimeters per Minute (SCCM) and 0.44, respectively. Finally, the SWU value in optimum conditions was compared with the experimental data. Results illustrated that the experimental data were in good agreement with simulation data with an accuracy of about 90%.


Corresponding author: Parissa Khadiv-Parsi, School of Chemical Engineering, 4th floor, College of Engineering, University of Tehran, Tehran 11155-4563, Iran, E-mail:

Acknowledgments

I thank Mr. Saeed Yaghoobi and Mr. Shahab Golshan for assistance for writing assistance, and my colleagues for comments that greatly improved the manuscript.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2021-08-03
Accepted: 2021-10-21
Published Online: 2021-11-19

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