Characteristics of Heat Transfer in Cooling Tower Flat Type Flat Storage

The cooling tower analyzed in this study functions as a heat exchanger in which water serves as the working fluid. Air is introduced to facilitate the cooling process through direct contact with the water, thereby inducing turbulence that promotes partial evaporation of the fluid. Enhancement of cooling tower effectiveness has been the subject of extensive experimental efforts. Accordingly, the present investigation evaluates the influence of varying the number of perforations on the displacement rate within a flat plate-type cooling tower. The structure features an overall height of 2.4 m, with each individual plate measuring 0.7 m in length and 0.5 m in width, and comprises five tiered distribution plates for water flow. Multiple plate configurations were assessed, including an unperforated plate, plates with 25, 35, 45, and 55 circular perforations, as well as a 65-hole zig-zag pattern. Each orifice implemented in the plates has a diameter of 0.02 m, with an inclination angle of 15° applied to each plate. Empirical data reveal that the maximal rate of heat transfer was observed for the configuration comprising 45 perforations at an inlet water temperature of 75 °C. Conversely, the minimum heat transfer rate was recorded for the 25-hole plate variation at an inlet water temperature of 55 °C.