NONISOTHERMAL DESORPTION AND NUCLEATE BOILING IN A WATER-SALT DROPLET LiBr

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Sergey Ya. MISYURA

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 observed. Evaporation rate of distillate droplet is constant for a long time period. At nucleate boiling of a water-salt solution of droplet several characteristic regimes 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 desorption 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.

Article Details

How to Cite
MISYURA, Sergey Ya.. NONISOTHERMAL DESORPTION AND NUCLEATE BOILING IN A WATER-SALT DROPLET LiBr. Thermal Science, [S.l.], mar. 2017. ISSN 2334-7163. Available at: <http://thermal-science.tech/journal/index.php/thsci/article/view/2418>. Date accessed: 20 feb. 2018. doi: https://doi.org/10.2298/TSCI160513026M.
Section
Articles
Received 2017-03-15
Accepted 2017-03-15
Published 2017-03-15

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