🔹 می Cooling Tower (Cooling Tower) Circuit Open
In the open circuit cooling tower, the water flow to be cooled is placed in direct contact with the air. In such a way that the water flow is directed to the upper part of the tower and is distributed on the packings through water spray nozzles. Water is spread in the form of very thin layers on the packing surfaces, and as a result, a very large contact surface is created with the passing air flow. Air cools water in two ways. Part of the water heat is removed by heat transfer (if the dry air temperature is lower than the incoming water temperature), but the main part of the water cooling is caused by the evaporation process. Finally, the saturated air is discharged from the top of the tower into the atmosphere, and on the other hand, the cold water accumulated in the pan also exits from the bottom of the tower.
🔹 🔹🔹 Circuit CCTV (Cooling Tower)
In closed circuit cooling towers, there is no direct contact between the water flow that needs to be cooled and the passing air flow. As another heat exchanger (coil) is installed inside the tower through which the desired water flow passes. Another flow of water from the pan is directed to the upper part of the tower and is distributed on the coil pipes through water spray nozzles. In this way, some of the atomized water particles, due to the impact with the hot surface of the pipes, evaporate and cause the temperature of the water inside the pipes to decrease. The air flow passing over the coil also provides conditions for better evaporation of water particles. So that the saturated air leaves the tower and replaces it with dry and fresh air. Of course, the lower dry air temperature compared to the surface temperature of the pipes also helps to cool the water inside the pipes.