One Question per Day, September 16, 2015
Thread Content
First, it is necessary to convey flue gas at a temperature of 200 degrees and a density of 0.75, in a volume of 12,700, with a total air pressure of 120 mmH2O. There is one fan whose nameplate specifies a flow rate of 12,700 and an air pressure of 160 mmH2O; it is necessary to verify whether this fan is suitable for use.
One fan has a nameplate flow rate of 12,700, and a wind pressure of 160 mmH2O; it has been verified to be usable
The selection of a fan is related to the medium and temperature! Just looking at pressure and flow rate is sufficient for use
This question is so specialized; as a layperson, I don’t understand it. Please explain
It cannot be used; the flow rate indicated on the nameplate is the flow rate under standard conditions.
【Solution】According to the given conditions, the total wind pressure of the system under experimental conditions is 192 mmH2O, which is greater than 160 mmH2O; therefore, this fan is not usable.