The issue of cooling temperature in water-cooled fans
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This post was last edited by you*n*nyou on 2011-7-13 at 18:56. The room-temperature water here is cooled by a water-cooled fan; what are the factors that affect the temperature of this room-temperature water? I personally believe that the fan speed of a water-cooled fan affects the water temperature during cooling; are there any other factors that influence the water temperature?
Cooling tower efficiency, ambient temperature, make-up water volume, etc. . .
The return water temperature, ‘fresh water addition’ – all of these are factors mentioned by Jiu Tian. Still can’t figure this out with dry air separation? It’s all physical cooling methods. The difference between normal cooling and cryogenic cooling.
I know all of this; for example, it is related to the return water temperature, the ambient temperature, as well as the makeup water temperature and volume. I was wondering if it is also related to the ventilation conditions? Is it related to things such as tall buildings surrounding the water-cooled fans, or an overly dense distribution of these fans? I hope for some well-founded theories
Reply to 4# Access: Is the heat exchange material used there glass-plate sheets similar to regular packing? Is the top part like a sieve plate? If so, it has to do with the fan; turning on the fan creates an upward airflow. Adjust the resistance.
Can the resistance be adjusted too? It’s more or less as you described: it has regularly arranged packing, with a top part that functions like a sieve plate. You’re right; it is related to the fan’s speed – when the speed is low, the cooling effect is certainly not satisfactory
Reply to 6#: For inflow and outflow, there are viscous fluids as well as rising gases, i.e., the fan – how can there be no resistance? Obvious distillation heat exchange principle. The amount of water sprayed cannot be adjusted easily; turn on more fans
In addition to the points mentioned above, there are also defects in the design and installation of the cooling tower, such as insufficient packing, low fan power, and an excessively small installation angle for the fan blades； All of these will have a combined impact on the cooling efficiency of the cooling tower. During routine operation and maintenance, the nozzles in the cooling tower may fall off, which affects the heat exchange efficiency and leads to an increase in water temperature ； Within the rated power of the fan, to ensure that the motor current does not become too high, the angle of the fan blades can be adjusted appropriately to increase the volume of air used for cooling, thereby achieving an excellent cooling effect ； Of course, the adjustable angle of the fan blades is limited, with the principle of ensuring the proper operation of the fan being followed ；
With a high-quality cooling tower and good fill material, temperature is not an issue
Cooling tower efficiency, spray system in good condition