Page - 1385 - in Book of Full Papers - Symposium Hydro Engineering

10. CONSIDERATIONS – DECISION ON AN EJECTOR PLANT Assuming a change in the runoff water volume at a constant drop height, and taking into account the annual 3 – 5 % energy increase, you can calculate an equivalent reduction in the full load volume of approximately 7 – 10 %, which compensates for the energy gains, but does not evaluate the further advantages of location and operation, as shown in the below diagram (example KW Gaissulz / Ybbs). Fig. 28 Annual energy production for different adjustment flow rates QTA for location Gaissulz/Ybbs [3] From this comparison and from a desire to reduce the dimensions and costs in general we can conclude the possibility of a smaller design concept using also the further advantages of an ejector power plant. 1385