This practical reference describes the occurrence of cavitation in a centrifugal pump, and how unacceptable cavitation can be avoided. It explains cavitation problems such as hydraulic performance loss, hydrodynamically or thermodynamically induced surging, and cavitation erosion. General guidelines for acceptable operation conditions, such as, net positive suction head (NPSH) margins and minimum flowrates, are presented along with evidence and logic for these proposed guidelines.
Table of Contents
1.Cavitation an Unacceptable Phenomenon 2.Independent Variables and Terminology 3.Centrifugal Pump Performance Characteristics 4.Net Positive Suction Head and the Pump Operational Range 5.Cavity Dynamics-A Simplified Approach 6.Hydraulic Performance Loss-Duty Shortfall and Vapour Locking 7.Cavitation Surging-Hydrodynamically Induced 8.Cavitation Surging-Thermodynamically Induced 9.Cavitation Erosion 10.Centrifugal Pump Low-Flow Protection 11.Cavitation for Centrifugal Pumps 12.New Centrifugal Pump Specifications-Pump Selection and Cavitation 13.New Centrifugal Pump Offers-Technical Assessments and Cavitation 14.Centrifugal Pumps in Service-Resolving Cavitation Problems 15.Centrifugal Pumps and Cavitation-A View of the Past 16.Centrifugal Pumps and Cavitation-A View on the Future Appendix A.The First Centrifugal Pump-As Described by Denis Papin in 1705 Index