Introduction Module 4 Reaction Turbines Kaplan Turbine Classification

Introduction. Module 4 Reaction Turbines: Kaplan Turbine.

Classification of Reaction Turbines: Radial, Mixed and Axial Radial : At entrance to runner blade, velocity has primarily radial component. Eg: Old Francis turbines. Mixed : At entrance to runner blade, velocity has a radial as well as axial component. Eg: Modern Francis Turbines Axial: At entrance to runner blade, velocity has primarily an axial component. Eg: Kaplan and propeller turbines.

Kaplan Turbine Schematic Spiral casing Guide Vane Kaplan Runner Hub Draft tube

Kaplan Turbine - Photo Kaplan Runner Hub

Kaplan Turbine – Horizontal Installation Kaplan Runner Hub

Kaplan Turbine Versus Propeller turbine Kaplan turbine: Propeller turbine with variable pitch (adjustable) propeller blades The Kaplan turbine has runner blades that can be adjusted to run at maximum efficiency for various head (H) and flow (Q) conditions. Propeller turbines have fixed blades