This study analyzes industrial cooling towers as processes of heat extraction. Since there are many industrial processes in which cold water is required in order to obtain an end product, an understanding of heat extracting processes is of great importance. To achieve this, a model of an industrial cooling tower was developed using the Bond Graph technique, which provided a graphic representation of the interaction between the system's elements, represented an excellent physical approach to the problem, and also proved to be a simple and versatile means to model real processes. The model itself was of cooling tower to be used to cool the extruders and the calander that form part of the process to manufacture plastic vessels. The model was satisfactorily validated by experimental data and additional simulations were carried out that verified the results. The use of the model as a tool to analyze and design such systems as those studied is proposed.