Net Suction Specific Speed
The net suction specific speed is mainly used to see if there will be problems with cavitation during the pump's operation on the suction side. It is defined by centrifugal and axial pumps' inherent physical characteristics and operating point. The net suction specific speed of a pump will define the range of operation in which a pump will experience stable operation . The higher the net suction specific speed, then the smaller the range of stable operation. The envelope of stable operation is defined in terms of the best efficiency point of the pump.
The net suction specific speed is defined as:
where:
- net suction specific speed
- rotational speed of pump in rpm
- flow of pump in US gallons per minute
- Net positive suction head (NPSH) required in feet at pump's best efficiency point
Read more about this topic: Specific Speed
Famous quotes containing the words net, suction, specific and/or speed:
“Even in harmonious families there is this double life: the group life, which is the one we can observe in our neighbour’s household, and, underneath, another—secret and passionate and intense—which is the real life that stamps the faces and gives character to the voices of our friends. Always in his mind each member of these social units is escaping, running away, trying to break the net which circumstances and his own affections have woven about him.”
—Willa Cather (1873–1947)
“It is the place where all the aspirations of the Western World meet to form one vast master aspiration, as powerful as the suction of a steam dredge. It is the icing on the pie called Christian civilization.”
—H.L. (Henry Lewis)
“The more specific idea of evolution now reached is—a change from an indefinite, incoherent homogeneity to a definite, coherent heterogeneity, accompanying the dissipation of motion and integration of matter.”
—Herbert Spencer (1820–1903)
“The terror of the atom age is not the violence of the new power but the speed of man’s adjustment to it—the speed of his acceptance.”
—E.B. (Elwyn Brooks)