Issues regarding the calculation of air volume indicated on the nameplate of air fans
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I would like to ask experts in fans: Currently, the air volume indicated on the fan’s nameplate refers to the volume of gas under standard technical conditions, or under standard conditions? Since these two have different units, their air volume is actually different. Therefore, this is a very important issue for the calculation of air volume and selection of fans.
I think the standard state refers to the condition at standard atmospheric pressure and a temperature of 0 degrees. And the standard technical conditions are the local air pressure and temperature, right?
The performance parameter table for fan samples is determined under the standard conditions specified by **standards; when the operating conditions change, the performance parameters of the fan will also change, and these can be adjusted using relevant formulas.
Nameplate air volume: refers to the air volume at a pressure of 760 mmHg, a temperature of 20°C, and a relative humidity of 50%
This post was last edited by wmx007 on 2009-9-8 at 15:33. I agree with the view above. Standard condition: dry air at 1 atmosphere of pressure, 0°C, and 0% humidity; this is commonly used in compressors. Standard operating condition: 1 atmosphere of pressure, 20°C, and 50% humidity; this is commonly used in fans
Agree with the view from floor 4. Nameplate air volume: refers to the air volume at a pressure of 760 mmHg, a temperature of 20°C, and a relative humidity of 50%