Abstract
Experimental data on desorption and nucleate boiling in a droplet of LiBr-water solution were obtained. An increase in salt concentration in a liquid-layer leads to a considerable decrease in the rate of desorption. The significant decrease in desorption intensity with a rise of initial mass concentration of salt has been ob-served. Evaporation rate of distillate droplet is constant for a long time period. At nucleate boiling of a water-salt solution of droplet several characteristic re-gimes occur: heating, nucleate boiling, desorption without bubble formation, formation of the solid, thin crystalline-hydrate film on the upper droplet surface, and formation of the ordered crystalline-hydrate structures during the longer time periods. For the final stage of desorption there is a big difference in desorp-tion rate for initial salt concentration, C0, 11% and 51%. This great difference in the rate of desorption is associated with significantly more thin solution film for C0 = 11% and higher heat flux.
Original language | English |
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Pages (from-to) | 295-300 |
Number of pages | 6 |
Journal | Thermal Science |
Volume | 22 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Jan 2018 |
Externally published | Yes |
Keywords
- Desorption
- Nucleate boiling droplet
- Water-salt solution
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment