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Improvement of CO 2 absorption by Fe 3 O 4 /water nanofluid falling liquid film in presence of the magnetic field
Author(s) -
Pahlevaninezhad Maedeh,
Etesami Nasrin,
Nasr Esfahany Mohsen
Publication year - 2021
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.23883
Subject(s) - nanofluid , laminar flow , mass transfer , materials science , mass transfer coefficient , turbulence , absorption (acoustics) , mass concentration (chemistry) , magnetic field , analytical chemistry (journal) , nanoparticle , chemical engineering , thermodynamics , chemistry , nanotechnology , chromatography , composite material , physics , quantum mechanics , engineering
Carbon dioxide is considered as the main greenhouse gas responsible for climate change. Absorption of CO 2 by liquid phase has gained attention as a means of mitigating environmental challenges. In this study, the effect of Fe 3 O 4 nanoparticles on the CO 2 ‐water mass transfer coefficient was experimentally evaluated in the presence and absence of a magnetic field. The absorption experiments were carried out in a falling liquid film absorber system in laminar and turbulent flow regimes. Fe 3 O 4 /water nanofluid was used in 0.001‐0.05 vol% concentrations. The results show that adding Fe 3 O 4 nanoparticles to water increases the mass transfer coefficient (MTC), and that it increases with an increase in nanofluid concentration. For a concentration of 0.05 vol% nanofluid, the MTC was improved 111% and 13.7% in the turbulent and laminar flow regimes, respectively. The mass transfer coefficient of CO 2 in water and effective mass transfer coefficient in nanofluid were increased up to 10% and 29% in the presence of a parallel alternative magnetic field, respectively.