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Abdolreza Moghadassi

Abdolreza Moghadassi

Academic rank: Professor
ORCID: https://orcid.org/0000-0003-0733-4540
Education: PhD.
ScopusId: 25959677500
HIndex:
Faculty: Engineering
Address: Arak University
Phone:

Research

Title
Modeling and simulation of CO2 removal in a polyvinylidene fluoride hollow fiber membrane contactor with computational fluid dynamics
Type
JournalPaper
Keywords
Hollow fiber membrane Mathematical modeling CO2 absorption Mass transfer
Year
2015
Journal Chemical Engineering and Processing: Process Intensification
DOI
Researchers Mahsa Loloei ، Abdolreza Moghadassi ، Vahid Vatanpour

Abstract

This study was an attempt to develop a comprehensive two-dimensional model for removal of carbon dioxide in a polyvinylidene fluoride (PVDF) hollow fiber membrane contactor (HFMC) utilizing the computational fluid dynamics (CFD) technique. Governing equations were solved in three sections using a finite element method. Distilled water was used as a liquid absorbent in a non-wetting mode. Effectively, a comparison was made between the simulation predictions of the model and the experimental data in order to validate the developed model, which resulted into significant corroboration between them. The simulation results showed that removal percentage of CO2 was encouraged by increasing liquid velocity. However, it was decreased by increasing gas velocity and liquid absorbent temperature. Moreover, the simulation results revealed that increasing fiber length and membrane porosity had a positive effect on the removal efficiency. It was also indicated that counter-current flow arrangement was superior to co-current at the same operating conditions by investigating the results for both flow arrangements. In this model, two different equations were used for estimating the diffusion coefficient of CO2 in water, which the results for the removal efficiency were different.