Table 3 Range of specific speed for each turbine type (Penche, 2004)
From: Design models for small run-of-river hydropower plants: a review
Turbine type | Range speed |
|---|---|
Pelton one nozzle | 0.005 ≤ nQE  ≤ 0.025 |
Pelton n nozzles | 0.005n0.5 ≤ nQE  ≤ 0.025n0.5 |
Francis | 0.05 ≤ nQE  ≤ 0.33 |
Kaplan Propeller bulbs | 0.19 ≤ nQE  ≤ 1.55 |