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Effect of Surfactants on the Flow Patterns of Horizontal Tube Bundles with a Falling Film

Lonardi, Federico
Olbricht, Michael
Luke, Andrea

The influence of two alcoholic surfactants on the flow patterns of falling film tube bundles is investigated. The flow patterns are measured in a single‐stage absorption chiller in the absence of surfactants. The surface tension of H2O/aqueous LiBr solution with different concentrations of 1‐octanol and 2‐ethylhexanol is measured at low pressure in a saturated atmosphere. Small quantities of surfactants in the aqueous solution do not have an influence on the flow patterns of the condenser and evaporator, while a shift from droplet to jet mode is predicted in the absorber and generator at the typical working condition of an absorption chiller.

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Citation
In: Chemie Ingenieur Technik Volume 92 / Issue 5 (2020-03-24) , S. 613-618; EISSN 1522-2640
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@article{doi:10.17170/kobra-202103113489,
  author    ={Lonardi, Federico and Olbricht, Michael and Luke, Andrea},
  title    ={Effect of Surfactants on the Flow Patterns of Horizontal Tube Bundles with a Falling Film},
  keywords ={660 and Absorptionskältemaschine and Strömungsrichtung and Lithiumbromid and Niederdruck and Tensid and Rohrbündel},
  copyright  ={http://creativecommons.org/licenses/by-nc-nd/4.0/},
  language ={en},
  journal  ={Chemie Ingenieur Technik},
  year   ={2020-03-24}
}