The Pelton wheel turbine is an impulse
water turbine named after Sir L.A. Pelton (1829–1908) from California, USA. It
is a tangential flow turbine where water hits the buckets along the tangent of
the runner. Only kinetic energy is used at the inlet, and both inlet and outlet
operate at atmospheric pressure. This type of turbine is mainly used for high
head applications.
The setup includes a runner with
multiple buckets mounted on it. Water is directed to the turbine tangentially
through a stainless-steel nozzle and spear using a centrifugal pump. The flow
of water to the turbine is controlled by adjusting the spear position with a
handwheel. The runner is attached to a central stainless-steel shaft, which
connects to a braking system on the other end. A transparent acrylic window in
the turbine casing allows observation of water striking the buckets. The entire
runner setup is supported by a strong mild steel frame.
A brake dynamometer is used to apply load to the turbine, which helps calculate its efficiency. A pressure gauge is also installed at the turbine's inlet to measure the total head of water supplied.
Experimental Objective
Study the operation of a Pelton Wheel Turbine.
Determine the output power of the Pelton Wheel
Turbine.Ca
Calculate the turbine efficiency.
Utilities Required Other Than Above Supply
Water Supply and Drain, Electricity 15 kW, 440V AC, Three Phase.
Specifications
MODEL |
HM 111 (1.33 HP) |
HM 111 (2 HP) |
HM 111 (5 HP) |
Output Power |
1.33 HP / 1 Kw |
2 HP / 1.5 Kw |
5 HP / 3.75 Kw |
Discharge |
300 LPM (Approx.) |
400 LPM (Approx.) |
630 LPM (Approx.) |
Supply Head |
25 m |
40 m |
45 m |
Rope Brake
Dynamometer |
Dia200 mm |
Dia200 mm |
Dia300 mm |
Sump Tank |
Capacity 150liters. |
Capacity 200liters. |
Capacity 300liters. |
Water
Circulation Centrifugal Pump |
Capacity 5 HP, Three Phase |
Capacity 7.5 HP, Three Phase |
Capacity 15 HP, Three Phase |
Speed |
1000 RPM (approx.) |
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Impeller |
Material Brass, Bucket type |
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Nozzle |
Material Stainless Steel/Mild Steel |
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Spear |
Material Stainless Steel/Mild Steel |
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Discharge
Measurement |
Pitot Tube with Manometer |
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Control
Panel |
Star/Delta Starter, Mains Indicator, MCB for overload protection |
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