Buffer tank calculation
Thread Content
I need to keep the outlet pressure of the centrifugal fan, with a flow rate of 500 cubic feet per minute, at 20 kPa. The maximum output pressure of the centrifugal fan is 26 kPa. The air demand on the downstream side is unstable – sometimes it’s 400 cubic feet per minute and other times there is no demand at all. What size buffer tank do I need?
400 cubic meters per minute vs. 0 – the difference is huge; it seems that a circulation line should be added after cooling.
With a circulation line and increased fan speed control, it is safe, energy-efficient, and operates smoothly
I considered using variable frequency, but the current stabilization time and the time required to adjust to 400 cubic feet is around 60 seconds. I operate at 400 cubic feet for about 30 seconds, then it takes another 30 seconds or so for stabilization before I can start working again; the adjustment isn’t fast enough