When the resistance in the pipeline network increases, does the fan speed increase or decrease? !
Thread Content
It should speed up, right, to increase kinetic energy?
The speed of the fan is determined by the speed of its prime mover! It will not change due to changes in the official website’s settings
The rotational speed remains unchanged, but the current in the motor increases because the torque of the motor rises – (9550*P)/N. With the rotational speed constant, power increases and thus torque increases as well
The rotational speed remains the same, but the current is no longer within normal ranges; P
It also depends on the control method of the fan: whether it is constant flow or constant pressure control
That’s true. A Roots blower is a constant-flow blower, right?
In the case of a Roots blower, the flow rate is generally proportional to the speed, with little relation to the back pressure.
For any fan, the flow rate is proportional to the rotational speed.
When the resistance is too high, the flow rate becomes very low, but the rotational speed remains unchanged. Flow rate should be proportional to rotational speed – how can this be explained?
Are you measuring the volumetric flow rate at the outlet? The volumetric flow rate under the inlet conditions remains essentially unchanged.