Numerical simulation of Marangoni convection within absorptive aqueous Li-Br.
Number: AB-SI1-1135
Author(s) : GIANNETTI N., YAMAGUCHI S., SAITO K.
Summary
The Marangoni convection effect within absorptive films can be described as the behaviour that brings the boundary between adjoining phases to relapse into a state where the interfacial free energy is minimized as a consequence of the expansion and the contraction of the regions with low and high surface tension. Thus, surface tension gradients lead to a shear stress originating a fluid motion in proximity of the interface and consequently affecting the contingent heat and mass transfer process. However, since the mechanism by which the related transport phenomena can be enhanced has not been clearly understood, neither the upper limit to the benefit provided nor the best surfactant additive are currently known. This work formulates a numerical model of the fundamental governing equations in two dimensions and presents a first screening of the model results. Different interfacial boundary conditions are analysed in a way useful to provide a direct comparison of the present results with the measurements from a nearly two-dimensional apparatus and to clarify the driving force of Marangoni convection and the related transfer performance enhancement.
Details
- Original title: Numerical simulation of Marangoni convection within absorptive aqueous Li-Br.
- Record ID : 30022718
- Languages: English
- Source: International sorption heat pump conference, ISHPC 2017, Tokyo august 7-10.
- Publication date: 2017/08/07
Links
See other articles from the proceedings (159)
See the conference proceedings
Indexing
-
Simplified models for coupled heat and mass tra...
- Author(s) : ISLAM M. R., WIJEYSUNDERA N. E., HO J. C.
- Date : 2004/01
- Languages : English
- Source: International Journal of Heat and Mass Transfer - vol. 47 - n. 2
View record
-
Absorption process of a falling film on a tubul...
- Author(s) : ISLAM M. R.
- Date : 2008/08
- Languages : English
- Source: Applied Thermal Engineering - vol. 28 - n. 11-12
View record
-
Experimental investigation on a hybrid enhanced...
- Author(s) : MARTINEZ A., ALONSO L., PEÑA X., et al.
- Date : 2017/08/07
- Languages : English
- Source: International sorption heat pump conference, ISHPC 2017, Tokyo august 7-10.
View record
-
Limits of mass transfer enhancement in lithium ...
- Author(s) : TSAI B. B., PEREZ-BLANCO H.
- Date : 1998/08
- Languages : English
- Source: International Journal of Heat and Mass Transfer - vol. 41 - n. 15
View record
-
Mathematical simulation of lithium bromide solu...
- Author(s) : SHI C., XU C., HU H., et al.
- Date : 2007/07/21
- Languages : English
- Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Formats : PDF
View record