How to increase the load of an air cooler when it is insufficient?
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For the high-temperature air cooler in the reaction section of my installation, two units were designed. The current operating load is not at 100%, but when only one unit is in use, the temperature after cooling reaches 80°C, which is 20°C above the allowable limit; as a result, both units must be operated simultaneously, leaving no opportunity for maintenance tasks such as replacing belts. Now, considering increasing the load on air cooling, we have two approaches: one is to add sprinklers, and the other is to modify the motor, either by changing the pulley to increase the speed or by adjusting the blade angle. Referencing other air coolers with spray systems, the temperature can only be reduced by about 5°C, and there are too many changes required to increase the rotation speed. Does anyone have other ways to reduce the temperature after air cooling? Thank you first
Use two units; the fans can then be shut down or used less
Only by having the fans running at full speed and the blinds fully open can the temperature be lowered; if one of the fans is turned off, the temperature rises to 80
The blade angle was also adjusted, but the load isn’t sufficient. You’re using dry air cooling; can it be changed to wet air cooling? That would allow the temperature to be reduced significantly. Our water spray system is equivalent to four fans in terms of cooling capacity
Run both of them; by changing the frequency of the motors, energy can be saved.
The blade angle hasn’t been adjusted yet, as there’s a risk of the motor being overloaded. Is the wet-type unit equipped with a spray-type air cooler? We have air coolers with spraying functions here, but they don’t manage to lower the temperature much – by only about 5°C
One is fixed-frequency and the other is variable-frequency; neither can operate at full load alone
Add another air-cooled unit; use two and maintain one. It doesn’t work even on this day; surely it will be suitable for everything in the summer. How is the craftsmanship calculated?
The thermal conductivity of air is low; increasing the air flow rate has little effect. We’ll have to add another unit – there’s no other solution. The heat exchange area is too small
Is it possible to increase air humidity in order to raise the heat transfer coefficient?
There’s no space; this air cooler is right in the middle of a row of air coolers.