Catastrophic Failure in Centrifugal Pumps
A catastrophic failure of a centrifugal pump can occur if the liquid within the pump casing is allowed to vaporize. To prevent flashing due to overheating of the fluid, a flow must be maintained through the pump to keep the liquid below saturation temperature.
If a temperature rise of 15 °F (8 °C) is accepted in the casing—minimum flow through a centrifugal pump can be calculated as
q = PBHP / 2.95 • cp • SG (1)
where
- q = minimum flow rate (gpm)
- PBHP = power input (BHP)
- cp = specific heat capacity (Btu/lb °F)
- SG = specific gravity of the fluid
Read more about this topic: Catastrophic Failure
Famous quotes containing the words catastrophic, failure, centrifugal and/or pumps:
“This is a catastrophic universe, always; and subject to sudden reversals, upheavals, changes, cataclysms, with joy never anything but the song of substance under pressure forced into new forms and shapes.”
—Doris Lessing (b. 1919)
“Dear George: Remember no man is a failure who has friends. Thanks for the wings! Love, Clarence”
—Frances Goodrich (1891–1984)
“Travel is like adultery: one is always tempted to be unfaithful to one’s own country. To have imagination is inevitably to be dissatisfied with where you live. There is in men, as Peter Quennell said, “a centrifugal tendency.” In our wanderlust, we are lovers looking for consummation.”
—Anatole Broyard (1910–1990)
“the rusty
Pump pumps over your sweating face the clear
Water, cold, so cold! you cup your hands
And gulp from them the dailiness of life.”
—Randall Jarrell (1914–1965)