Suitable Turbine for High Head and Low Discharge

The suitable turbine for high head and low discharge is Pelton turbine. Let's understand the reasons behind this:

Pelton Turbine

Pelton turbine is an impulse turbine that uses high-pressure water jets to rotate the turbine wheel. The water jet is directed on the turbine wheel by a nozzle and the wheel has buckets or cups that are designed in a way to catch the water jet and convert its kinetic energy into rotational energy. The water then exits the wheel and falls into a tailrace.

High Head

High head means that there is a significant difference in the water level between the inlet and outlet of the turbine. The Pelton turbine is suitable for high head because of the following reasons:

- The high-pressure water jet used in the Pelton turbine is produced by a nozzle and it can be easily adjusted to match the high head condition.
- The design of the Pelton turbine is such that it can efficiently convert the high pressure of the water jet into rotational energy.

Low Discharge

Low discharge means that there is a relatively small amount of water flowing through the turbine. The Pelton turbine is suitable for low discharge because of the following reasons:

- The design of the Pelton turbine is such that it can efficiently convert the kinetic energy of the water jet into rotational energy, even if the water flow rate is low.
- Since the Pelton turbine is an impulse turbine, it does not require a large amount of water flow to create the necessary pressure for rotation.

Conclusion

Therefore, it can be concluded that the suitable turbine for high head and low discharge is the Pelton turbine because of its design and operating principles.