Abstract
The efficiency level of the two Palmiet pump-turbines, supplied by J. M. Voith GmbH, FGR, was considerably improved in both modes of operation, at the design state, by the application of numerical methods. This article descibes the integrated numerical system (INS) used for the hydraulic improvement of the low specific speed pump-turbines with a head of 300 m and an output of 250 MW. Some principal results of the preliminary computations, the model test results, and the improvement of the efficiencies related to the original runner design are shown.
| Original language | English |
|---|---|
| Pages (from-to) | 17-21 |
| Number of pages | 5 |
| Journal | International Water Power and Dam Construction |
| Volume | 40 |
| Issue number | 5 |
| State | Published - May 1988 |
| Externally published | Yes |