Numerical study of the enhancement produced in absorption processes using surfactants.
Author(s) : CASTRO J., LEAL L., PÉREZ-SEGARRA C. D., et al.
Type of article: Article
Summary
A model that considers the Navier-Stokes equations is used to study the influence of surfactants, substances that improve heat and mass transfer in absorption machines due to Marangoni effect. For solving the free surface location a surface tracking method is used, and for the calculation of surface tension forces, a continuum surface forces model is employed. The coupled equations are solved using the SIMPLEC procedure. Two common surfactants for LiBr aqueous solutions, 1-octanol and 2-ethyl-1-hexanol, are numerically tested and the absorption enhancement produced in a stagnant pool is compared with other researchers' results. For falling film absorption some other results are showed.
Details
- Original title: Numerical study of the enhancement produced in absorption processes using surfactants.
- Record ID : 2005-0083
- Languages: English
- Source: International Journal of Heat and Mass Transfer - vol. 47 - n. 14-16
- Publication date: 2004/07
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- Date : 2006/05/29
- Languages : English
- Source: 7th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2006). Proceedings
- Formats : PDF
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- Author(s) : HIHARA E., SAITO T.
- Date : 1993/09
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- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 16 - n. 5
- Formats : PDF
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Multi-factorial study of the absorption process...
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- Date : 2004/07
- Languages : English
- Source: International Journal of Heat and Mass Transfer - vol. 47 - n. 14-16
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- Date : 1996/06
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- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 19 - n. 5
- Formats : PDF
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