Seite - 1377 - in Book of Full Papers - Symposium Hydro Engineering

In our special design the gate is located immediately below the start of the ramp gradient. This gives the added advantage of increased outflow speed with loss prevention by removing the previously present break at the transition to the ramp and avoiding fill surge. Fig. 17 Fully opened ejector gate – situation at pilot project KW Mühltalwehr / Alm Extensive software for the calculation and dimensioning of ejector power plants was produced by DI Rudolf Fritsch [3]. For the retroactive calculation from the model conditions, the following velocity curves of v1 are shown in Fig. 18, with variable QE, directly at the ejector gate before entering the ejector ramp. Fig. 18 Example of the typical relation of flow speed (vE) and height of water on an ejector ramp end to the flow speed (vA) at the ejector gate [3] 1377