13-25: Mathematical and Experimental Modeling of a Rain Zone

This paper is aimed at the description of theoretical and experimental research in aero- and thermodynamic processes occurring in the stream of moist air flowing pass the rain zone in cooling towers. The aim of this work is based on the presumption of non-uniform log-normal droplets size distribution in the rain zone. The changes in the moving air (such as pressure drop or humidity ratio) occurring in the rain zone are described as a dependence of the flow ratings of the air and water, on the state of both fluids and on the angel between the trajectory of the air and water particles. The results from this research should help with the design and the increase of cooling performance by using non-uniform nozzle grids.