Fan speed fluctuations are related to current, air volume, and pressure fluctuations, regardless of efficiency.
The fan speed increases, and the air volume increases by one time;
The fan speed increases and the wind pressure increases by a factor of two;
The fan speed increases and the current increases by a factor of three times;
The fan speed increases and the efficiency value does not change.
For example: if the original speed is 1000 rpm, the air volume is 60000m3/h, the wind pressure is 2500pa, the current is 120 amps, and the efficiency is 75%.
If the speed is 1000RPM=>1200RPM, increase it to 1.2 times.
Then, the air volume is equal to 60000m3/h*1.2=72000m3/h
Wind pressure is equal to 2500pa*1.2*1.2=3600pa
The current is equal to 120A*1.2*1.2*1.2=207A
The efficiency of the fan is unchanged.
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Tags: fan speed, current and fan air volume, pressure and efficiency
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