THERMAL SCIENCE

International Scientific Journal

Vladimir E. Nakoryakov

,

Sergey Ya Misyura

,

Sergey L. Elistratov

NONISOTHERMAL DESORPTION OF DROPLETS OF COMPLEX COMPOSITIONS

ABSTRACT
This paper presents the process of nonstationary evaporation of aqueous solutions of LiBr-H2O, CaCl2-H2O, NaCl-H2O droplets on a horizontal heating surface. The following typical stages of heat and mass transfer depending on wall temperature have been considered: evaporation below boiling temperature and nucleate boiling. The significant decrease in desorption intensity with a rise of initial mass concentration of salt has been observed. Formation of a surface crystallization front at evaporation of a droplet has been detected. We have developed the experimental method for direct measurements of the mass of evaporating droplet.
KEYWORDS
droplets nonstationary evaporation, aqueous salt solutions, desorption, heating surface
PAPER SUBMITTED: 2012-04-28
PAPER REVISED: 2012-04-30
PAPER ACCEPTED: 2012-05-15
DOI REFERENCE: https://doi.org/10.2298/TSCI120428116N
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2012, VOLUME 16, ISSUE Issue 4, PAGES [997 - 1004]
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Nonisothermal desorption of droplets of complex compositions

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