Why the cooling tower can only drop to the temperature near the wet bulb? When the cooling tower is used, it can cool down quickly, but the temperature is about the wet bulb temperature, but it can’t be lowered to 3 ℃ lower than the wet bulb temperature.
The temperature drop of the cooling tower can be said to be close to the local wet bulb temperature! But not more.
Cooling tower is a large-scale refrigeration and cooling equipment which takes away heat through water evaporation and heat absorption. Want to know why, need to know what is wet bulb temperature first, want to measure wet bulb temperature, need to put wet bulb thermometer in ventilated place, read wet bulb temperature in air flow remember scale, it is wet bulb temperature.
Because the water we spray on the surface of the condenser absorbs heat. As the temperature rises, it condenses into water vapor and evaporates continuously. The water vapor will mix with the air, and the water vapor with high temperature will exchange heat with the air continuously. To achieve a balance, on the contrary, if the temperature of the condenser is lower than that of the wet bulb, the temperature in the air will be absorbed.
When cooling, because of the influence of various factors, it is only near the wet bulb temperature. There is an error. We control the error within 3 degrees of the wet bulb temperature!