Abstract

Nucleate pool boiling experiments were conducted for water and water/NaCl solutions at atmospheric pressure. Many analyses of boiling heat transfer include the terms bubble frequency in their expressions for nucleate boiling heat flux. Experimental results show that the bubble frequency increases with increasing boiling heat flux and decreases with increasing NaCl concentration at same conditions. A new model for the prediction of bubble departure frequency is proposed, which predicts the experimental data with a satisfactory accuracy.

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