A New Analytical Solution for Bubble Growth Rates in Superheated Pure Liquid

Boiling heat transfer is used most commonly in chemical and petrochemical industries either to generate vapor or because of its high efficiency in cooling . All of known mechanisms of boiling are strong function of bubble growth rate and its accurate prediction is crucial for the theoretical prediction of boiling heat transfer coefficient.Unfortunately , the proposed correlations are either simple with a limited range of validity or complicated . In the present work a unified model is presented by solving equation of energy which is expressed by (formol) In this article , first the fundamental approach of developing of presented model is discussed . Then the prediction of this model is compared with available experimental data for water and with those of better performing correlation from the literature . The absolute average error between the predicated and the experimental data is less 20% forwater , which confirms the applicability of the suggested model .

Keywords:

Superheated liquid , Pool boiling , Bubble growth , Heat transfer