Acquiring basic knowledge necessary for designing and application of rotodynamic pumps and fans

Designing, application, exploitation and maintenance of rotodynamic pumps and fans

Definition and classification of hydro and pneumatic machines; typical appearance of centrifugal, mixed-flow and axial pumps and fans; basic parts of pumps and fans; performance characteristics of pumps and fans: flow rate, head, shaft power, efficiency, NPSH (pumps); experimental determination of performance characteristics; affinity laws; dimensionless characteristics; cavitation in pumps; flow control; stability of operation; operation in parallel or in series; start-up and shut-down of pumps; general (four-quadrants) characteristics of pumps; flow kinematics and velocity triangles; Euler`s equation for turbomachinery; secondary flow; part-load and over-load operation; axial force; linear (one-dimensional) theory; one-dimensional calculation of centrifugal impellers; calculation of hydraulic stator components of centrifugal pumps; calculation of mixed-flow impellers; planar hydrofoil and airfoil cascades; calculation of axial impellers; differences between pumps and fans; novelties in theory and practice of rotodynamic machines.

Lectures: combination of modern (presentations, simulations) and classic (chalk and blackboard, physical models) Numerical practice: (10 weeks): numerical and graphical problems, computer aided calculation and design of hydraulic parts of pump using one-dimensional theory. Laboratory practice (5 weeks). experimental determination of performance characteristics of centrifugal and axial pump on laboratory test stands.