Operating Principle of a Pelton Turbine

Operating Principle of a Pelton Turbine .

Operating Principle of a Pelton Turbine

Water turbines are turbomachines utilising water power. The Pelton turbine is a type of impulse turbine; such turbines convert the pressure energy of water into kinetic energy entirely in the distributor. During the conversion, the water jet is accelerated in a nozzle and directed onto the blades of the Pelton wheel tangentially. The water jet is redirected by approximately 180° in the blades. The impulse of the water jet is transmitted to the Pelton wheel.

Learning Objectives And Experiments

1. Design and function of a Pelton turbine
2. Determination of torque, power and efficiency
3. Graphical representation of characteristic curves for torque, power and efficiency

Specification

1. Function of a Pelton turbine
2. Transparent front panel for observing the operating area
3. Loading the turbine by use of the band brake
4. Adjustable nozzle needle for setting different nozzle cross-sections
5. Marking on brake drum for non-contact speed measurement
6. Instruments: spring balances for determining the torque, manometer shows pressure at turbine inlet
7. Flow rate determination by base module
8. Water supply using base module or via laboratory supply