Kaplan turbines · 12 m head · 5 blades (ESHA statistics)
Kaplan turbine runner 4000 mm, 5 blades (12 m head)
Model designed and computed with the Heliciel software. Design point: 12 m net head, 113.194 m³/s flow, 138.2 rpm (hydraulic power 13325 kW). Operating point and hub from the Kaplan statistics of the ESHA guide (specific speed n_QE = 0.686 at 12 m head); runner computed by Heliciel. Runner balanced on the head by Heliciel's turbine study (wicket gate and pre-swirl included); hydraulic geometry: the blade root fillet still has to be sized for strength.
The pack contains the complete propeller as a full-definition STL with root fillet, STEP surfaces (complete propeller and one blade), the Heliciel .hlc project and the computation records.
Characteristics computed by Heliciel
| Diameter | 4000 mm |
|---|---|
| Number of blades | 5 |
| Hub diameter | 1560 mm |
| Net head | 12 m |
| Flow | 113.194 m³/s |
| Specific speed n_QE (ESHA statistics) | 0.686 |
| Head taken by the runner | 10.03 m |
| Losses in wicket gate, bend and draft tube | 1.97 m |
| Wicket gate | 10 guide vanes, b0 1435 mm |
| Design speed | 138 rpm |
| Fluid speed at design point | 10.62 m/s |
| Axial load | 942072.40 N |
| Torque | 745140.300 N·m |
| Shaft power | 10768270 W |
| Power coefficient Cp | 0.88 |
| Blade shape | classic |
| Angles of attack | smoothed (6° along the whole blade) |
| Blade root | junction shank 476.2 × 271.6 mm |
| Bore | 120.4 mm |
| Hub length | 1157 mm |
| Blade thickness | 35.5 mm at the root, 46.6 mm at mid-radius (r = 1024 mm), 91.1 mm at the tip |
| Strength at design point | blade root fillet to be sized for strength |
| Direction of rotation | right-hand |
| Files included | STL, STEP, HLC |
| Reference | K-4000-5p |
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