we are planning to run two identical centrifugal pumps in parallel. one is motor driver, the other is steam turbine driver.
During normal opertions, a power failure occured, how fast can the turbine pump speed up to make up with the loss flow? lets say from 1700 RPM to 1750 RPM, one, two, five...
If your velocity is 20 meters/sec or 60 ft/sec, it is at low side of the limit. It is acceptable. One thing you should do is to add an annular ring above the inlet nozzle to prevent the lquid re-entrainment. I believe this will help. but I am not sure it is good enough to completely solve the...
what is the inlet velocity ? It seems very high based on the Re# you given. I designed a cyclone before. The maximum velocity should be exceeded 135 ft/s. >135 ft/s, particle or liquid droplet will re-entrain.