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Helical liquid flow on a vertical cylinder and its application to gas absorption
Author(s) -
Komae Naoya,
Sato, Yuki,
Mori Yasuhiko H.
Publication year - 2013
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.14079
Subject(s) - cylinder , absorption (acoustics) , flow (mathematics) , mechanics , aqueous solution , liquid flow , chemistry , helix (gastropod) , carbon dioxide , deformation (meteorology) , volumetric flow rate , materials science , optics , composite material , mechanical engineering , physics , geology , engineering , organic chemistry , paleontology , snail
An experimental examination of a novel device for enhancing the gas absorption into an aqueous absorbent flowing down the outer wall of a vertical cylinder was reported. This device utilizes flexible strings tightly wound around the cylinder, taking the form of a multiple helix. The absorbent flows along parallel channels partitioned by the strings, maintaining mutual contact with the surrounding gas for a longer time than it would when it flows down the same cylinder wall in the absence of such strings. Both flow‐observation experiments and absorption experiments using water as the absorbent flowing along a single helical channel and carbon dioxide as the gas to be absorbed were carried out. The effectiveness of the helical‐flow device for promoting the absorption was recognized at water flow rates high enough to induce an oscillatory flow mode accompanied by periodical liquid−gas interface deformation. © 2013 American Institute of Chemical Engineers AIChE J , 59: 3109–3118, 2013