PD763 Centrifugal Pumps: Testing, Design and Analysis Day One Hydraulic Theory – – – – Hydraulics and fluid flow Static head, velocity head Friction losses through pipes and fittings System Curve Description of the various pump types – Positive Displacement Pumps – Dynamic Pumps Derivation of Euler’s Equation for Turbomachines Centrifugal Pump Description Performance Modeling of Centrifugal Pumps – Pump Testing Methods – Performance Map – Dimensional Analysis for Pumps – Dimensionless Ratios for Predicting Pump Performance – Specific Speed – Efficiency Velocity Diagrams for the Pump Impeller Calculations for the Impeller Interaction between Impeller and Power Effects of Various Changes on Power Output Impeller Design and Vane Layout Drawings Selecting Inlet and outlet Vane Angles Design of the Volute Suction Inlet Parameters Centrifugal Pumps: Testing, Design and Analysis PD763 Updated April 2015 1 Day Two Casing design Volute vs. diffuser designs Pressure and Velocity in the Diffuser Pump Application Theory – Series operation – Parallel operation – Handling viscous liquids – Other special applications Criteria for Selection Pumps – Type of head curve required – NPSH – Specific speed – Pump type Day Three • Pump Shaft Critical Speed — Vibration issues • Stresses in the Pump Shaft • Sizing the Pump Shaft Diameter Special Design Considerations – Sump design guidelines – Suction design guidelines – Other special considerations Solving System Problems – Pump Problems – Process system problem – Water system problem – Viscous liquid pump problem Centrifugal Pumps: Testing, Design and Analysis PD763 Updated April 2015 2