Technical Data

• Kaplan Turbine: Rating: 50W

Functional model of a Kaplan turbine, with a ring of wicket gates that allows to control the water flow in the turbine. Speed range: 0 – 2500 r.p.m. Number of blades of the turbine: 4. Diameter of the turbine: 52 mm. Number of wicket gates of the ring: 8. Braking system: Band brake. Adjustable braking tension. Radius of the pulley of the brake: 50 x 10-3 m. Transparent water tank, capacity: 120 l. approx. Instrumentation and sensors: 2 Water pressure sensors, range: 0 - 100 PSI. Force sensor (load cell), range: 0 - 20 N. Slot sensor to measure the speed, range: 0-20000 r.p.m. Water flow sensor, range: 2 - 150 l./min. Water pump: Maximum height: 20 m. Maximum pressure: 2.2 bar. Maximum water flow: 160 l./min. Power: 0.5 kW. Speed adjustable through variable-speed drive.    

• 1KW Test Rig

Structural Specifications Stainless structure. Screws, nuts, plates and all the metallic elements in stainless steel. Diagram in the front panel with similar distribution to the elements in the real unit. Quick connections for adaptation to feed hydraulics source.   KAPLAN TURBINE TEST RIG (1 KW) (CC System).

1. a) Kaplan Turbine designed for laboratory experimental purpose & to conduct test under constant head of the following specifications.

Net Head: 5 m. Discharge: 1500 LPM. Normal Speed: 1000 RPM. Power : 1 Kw Brake Drum Dia.: 300 mm. Spiral Casing: Of close grained cast iron, with 150 mm flanged inlet. Guide Vane Assembly: Stainless steel guide Vanes coast integral with their spindles with external link mechanism, which can be operated by means of a hand wheel. Runner: Of gun metal with polished adjustable aerofoil blades for efficient operations. The blades can be adjustable by means of a suitable area link mechanism housed inside the runner hub, operating through the hollow steel shaft. Brake Arrangement: Consists of a cast iron brake drum machined & polished, cooling water supply pipe from the turbine inlet, internal scoop, discharge pipe, spring balance rope brake & loading dead weights.

7. b) Pump with volute casing suitable for the supply of water for the Turbine size of 6” to discharge 1500 LPM at a total head of 8 m. coupled to 7.5 HP induction motor 3 phase 400/440 V AC. supply
8. c) Flow measuring Unit: A C.I orifice meter of 150 mm dia. (6”) size with double column differential manometer (Without Mercury) on a panel board to measure the difference of pressure.
9. d) Reservoir of size 1.75 m length x 0.9 m width x 0.65 m. height with drain valve of ½ ” size & a bend.
10. e) Starter, Switch, Digital speed indicator, Pipe line with control valve
11. f) Strong iron stand to support the unit.

‘Sci-Cal’ Software & Interface: ‘Sci-tech’ software, interface & related sensors enable plotting of require graphs through the formulae integrated into software. The students can carry out experiments and see graphs and results in ‘Labview’. Depending on the measurement method, the measured values can be read off the analogue manometer or digital displays. The measured values are transmitted directly to a PC via USB. The data acquisition software is included.   Experiments

1. Study of construction of Kaplan turbine
2. Determination constant head characteristics curve
3. Determination of constant speed characteristics curves.
4. Determination of constant efficiency curves.