Analysis of Heat and Mass Transfer in an Open Cooling Tower

The aim of this article is analyzing heat and mass transfer in counter current open cooling towers. After reviewing preceding researches and rewriting the governing equations، a method is proposed which is independent of Lewis number variations in solving the problem، has been introduced. Also، the effect of Lewis number variations has been compared with this method. This method has been presented in Design and Rating situations which is more comprehensive than the preceding researches. Finally، the results of present method have been analyzed and investigated using the performance data of an industrial cooling tower.