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The effect of surfactants on absorption under conditions of heat pumps and refrigerators
Experimental results on steam absorption by an immobile layer of water solution of lithium bromide with additions of surfactant (n-octanol) are presented. The profiles of absorbate (water) temperature and concentration in the solution layer at different moments are presented for the first time. These results are compared with the similar ones, obtained without surfactant. Generation of convection in the near-surface layer is proved by video recording and thermal visual measurements of the moving interface temperature. A possibility to use published information on interfacial tension for modeling of heat and mass transfer under conditions of heat pump absorber operation is analyzed. The method for calculation of interfacial tension gradients and Marangoni numbers is suggested.
The effect of surfactants on absorption under conditions of heat pumps and refrigerators
Experimental results on steam absorption by an immobile layer of water solution of lithium bromide with additions of surfactant (n-octanol) are presented. The profiles of absorbate (water) temperature and concentration in the solution layer at different moments are presented for the first time. These results are compared with the similar ones, obtained without surfactant. Generation of convection in the near-surface layer is proved by video recording and thermal visual measurements of the moving interface temperature. A possibility to use published information on interfacial tension for modeling of heat and mass transfer under conditions of heat pump absorber operation is analyzed. The method for calculation of interfacial tension gradients and Marangoni numbers is suggested.
The effect of surfactants on absorption under conditions of heat pumps and refrigerators
Nakoryakov, V. E. (author) / Bufetov, N. S. (author) / Grigorieva, N. I. (author) / Dekhtyar, R. A. (author)
2006-07-01
Article (Journal)
Electronic Resource
English
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