1.-Equipment Identification
Name: Pelton Wheel
Location: Higher Technical School of Engineering (ETSI). West Corridor, Ground Floor
Origin: Izbor Hydroelectric Power Plant, Granada

2. Technical characteristics.
Dimensions: 142.5 x 29.5 cm.
Material: Steel. Painted red.
Use: The hydraulic turbine transforms the hydraulic energy of water into mechanical energy, as it impinges in the form of a jet on the blades of the impeller, to subsequently convert it into electrical energy by means of a generator.

Overview : The runner, rotor, or wheel is the main component of Pelton turbines and consists of a steel disc with blades (or buckets) located on the periphery of the wheel and a sharp inner edge, which is where the jet of water impinges. The energy exchange between the water and the turbine takes place in the blades. This runner has 22 elliptical blades or buckets cast as part of the wheel itself.

3.-Cataloging-Documentation
Date: c. 1970
Manufacturer/Brand: VERS Limited Company, Malaga
Country: Spain
Serial number and Model: Not available

4.-State of conservation:
Good. Small cracks on the ends of some spoons

5. Observations:
The legend illustrating the runner states: “Pelton runner from the Izbor power plant. The Izbor power plant is located in the municipality of Vélez de Benaudalla in the province of Granada. It is a power plant with two units, a vertical shaft, and four injectors per unit. Plant characteristics: It turbines water from the Beznar reservoir. 1. Power: 5.72 MW (7,835 hp). 2. Head: 306 m. 3. Flow rate: 2.60 m³/s. 4. Annual production: 33 GWh (Rudder lifetime production: 330 GWh). 5. The alternator has 5 pole pairs (600 rpm).”

6.-Bibliography and Sources
– Marchegiani, Ariel R. Pelton Turbines. Sept. 2004. Available at https://www.kimerius.com/app/download/5780662706/turbinas%20pelton.pdf (download .pdf)[Accessed: 28-10-2024]

– * Mataix, Claudio. Study and design of tangential turbines: TP. In Mataix, Claudio, Hydraulic Turbomachinery: Hydraulic Turbines, Pumps, Fans . 2nd ed. rev. and corr. Madrid: Pontifical University of Comillas, 2009. Chapter 13, pp. 891-964. Figure TP [Pelton Turbine] on p. 399

– Pelton turbine. Wikipedia. Available at https://es.wikipedia.org/wiki/Turbina_Pelton [Accessed: 26-03-2019]

7. More information: Pelton turbines are impulse turbines with partial admission, as the water only impacts a portion of the runner's periphery. They only transfer kinetic energy. They are the appropriate hydraulic turbines for harnessing high water heads and relatively small flow rates. Currently, the entire runner is usually a single piece, its size depending on the height of the head at which it is installed and the power required. The size of the blades is related to the diameter of the jet. The runner or wheel is housed in a casing to prevent splashing and accidents.

The invention of this turbine is due to Lester Allan Pelton , whose patent of 1880 (Oct. 26) contained all its essential elements which, perfected by continuous research, have led to modern Pelton turbines.