Experimental study on bubble growth of sodium chloride aqueous solution in static flash evaporation

An experimental study on bubble growth in static flash evaporation of aqueous NaCl solution was present. Experiments were carried out with initial waterfilm concentration varied from 0 to 0.2, initial waterfilm temperature from 93 to 96℃, and initial pressure of vacuum tank from 0.01 to 0.03 MPa. Results indicated that the decrease of initial pressure in vacuum tank will promote the growth of the bubble radius relatively. In Sodium chloride aqueous solution, the relative growth rate of bubble radius is quicker than that in pure water. However, different concentrations of Sodium chloride aqueous solution seem not affect the growth rate. In the article, the author establish a physical model and get the numerical solution. The numerical solution basically matches the experimental results but should still be improved.