Factual evidence is presented here which proves that the slip factor for a given impeller is not constant, but varies with the flow rate.
A schematic model is established that gives a possible explanation to the observed discrepancies between the existing theories and reality.
Get full access to this article
View all access options for this article.
References
1.
WiesnerF. J.‘A review of slip factors for centrifugal impellers’, J. Engng Pwr, Trans. Am. Soc. mech. Engrs196789, 558.
2.
PeckJ. F.‘Investigations concerning flow conditions in a centrifugal pump and the effect of blade loading on head slip’, Proc. Instn mech. Engrs1951165, 1.
StodolaA.Steam and gas turbines1927 (McGraw-Hill, New York).
5.
TruscottG. F.WorsterR. C., ‘The flow in volutes and its effect on centrifugal pump performance’, Proc. Instn mech. Engrs1963177 (No. 31), 843.
6.
AcostaA. J.BowermanR. D.‘An experimental study of centrifugal pump impellers’, Trans. Am. Soc. mech. Engrs195779, 1057.
7.
WorsterR. C.‘Tests on the air flow through a centrifugal impeller’, Br. Hydromech. Res. Ass. Publication No. RR-501 1954.
8.
DommV.HergtP.‘Die Energieverteilung in drei Radialradern Vershiedener Breite’, KSB Techn. Ber.1967 (No. 6), 12.
9.
YoungG. A. J.‘The flow in the rotating passages of a centrifugal pump impeller’, Br. Hydromech. Res. Ass. Publication S.P. 530 1956.
10.
FowlerH. S.‘The distribution and stability of flow in a rotating channel’, A.S.M.E. Paper 68-GT-1 1968.
11.
AcostaA. J.‘An experimental and theoretical investigation of two-dimensional centrifugal pump impellers’, Trans. Am. Soc. mech. Engrs195476, 758.
12.
YedidiahSh.‘Some causes of unstable performance characteristics of centrifugal pumps’, Symposium on Gas Turbine Pumps 1972 (American Society of Mechanical Engineers).
