TP12-05: Cooling Tower Modeling Approach

Various approaches to cooling tower modelling have been used by different authors. Some of these modelling approaches include the work of Lebrun and Aparecida (2002) titled ìCooling Towers ñ Model and Experimental Validationî which presented a simplified method for analysing the combined heat and mass transfer phenomena in a cooling tower using Merkelís theory as the theoretical basis for the model. Braun et al (1989) used the Effectiveness approach in their work titled, ìEffectiveness Models for Cooling Tower and Cooling Coilsî. Lastly, in the ìToolkit for Primary HVAC System Energy Calculationî, prepared for ASHRAE by Lebrun et al (1999), the model of the counterflow cooling tower was based on the Merkelís theory with the Lewis number assumed to equal unity.