The cooling effect of the air cooler is related to the air volume. The faster the ventilation efficiency, the more air air is blown into the room. However, it is impossible to achieve a comfortable environment by simply changing the air. If you only increase the amount of ventilation, it is equal to the exhaust fan.
So how to make the cooling fan achieve better cooling effect, or to complete the motor fan blade, water pump, wet curtain, and so on.
The pump flow is relatively large, the density of the wet curtain is denser, and the fan motor is larger. Only the cooling effect of these three is enough to be better. Of course, increasing the power and materials of the three components will also increase the cost of the chiller.