Product Supply Code: NLAB-MECHANICALAB230010
Product Name: Demonstration Pelton Turbine
Tender Supply Category: Fluid Mechanics Lab Equipments
The experimental unit consists of the Pelton wheel, a needle nozzle used as distributor, a band brake for loading the turbine and a housing with a transparent front panel. The transparent cover enables to observe the water flow, the Pelton wheel and the nozzle during operation. Adjusting the nozzle needle modifies the nozzle cross-section and thus the flow rate.
Water turbines are turbo machines utilizing waterpower. 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.
The turbine torque is determined by force measurement on a band brake and is read on spring balances. For measuring the rotational speed, a non-contact speed sensor, is required. A manometer shows the water pressure at the turbine inlet.
Demonstration Pelton Turbine
FEATURES
Model of an impulse turbine
Design and function of a Pelton turbine
Determination of torque, power and efficiency
Graphical representation of characteristic curves for torque, power and efficiency
Function of a Pelton turbine
Transparent front panel for observing the operating area
Loading the turbine by use of the band brake
Adjustable nozzle needle for setting different nozzle cross-sections
Marking on brake drum for non-contact speed measurement
Instruments: spring balances for determining the torque, manometer shows pressure at turbine inlet
The experimental unit is positioned easily and securely on the work surface
SPECIFICATION
Pelton turbine
Output: 5W at 500min-1, approx. 30L/min, H=2m
Pelton wheel
14 blades
Blade width: 33,5mm
External Ø: 132mm
Needle nozzle
Jet diameter: 10mm
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