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Mechanism of absorption enhancement by surfactant

โœ Scribed by H. Daiguji; E. Hihara; T. Saito

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
768 KB
Volume
40
Category
Article
ISSN
0017-9310

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โœฆ Synopsis

ln absorption refrigeration technology, it is well known that the water vapor absorption into the lithium bromide (LiBr) aqueous solution is enhanced by the addition of surfactant. The Marangoni effect plays a role but its mechanism is not clearly understood yet. In the present study, the existence of instability due to Marangoni effect was investigated using the linear stability analysis, based on the salting out effect. Then the vapor absorption augmentation was estimated by the numerical simulation of cellular convection. Both theoretical results qualitatively agree well with the experimental ones.

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