The nucleate boiling in a droplet of aqueous salt solution

This paper is devoted to an experimental study of the dynamics of the nucleate boiling in a droplet of aqueous solution of LiBr salt. As the concentration of LiBr salt increases, the growth rate of the bubbles decreases and the boiling completely stops when a high salt concentration is reached. An increase in the concentration of salt in the liquid layer of the bottom of the bubble leads to a decrease in the rate of increase in the diameter of the bubble, and a dry spot is not formed. The growth rate of a bubble (v) in a water droplet is somewhat higher than one for a salt solution for t > 0.2-0.3 s. The difference of v for the salt solution from curve 3 increases sharply when t < 0.1 s. For the first time, four regimes of the nucleate boiling in LiBr solution droplet were detected.

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