Seite - 1365 - in Book of Full Papers - Symposium Hydro Engineering

2. HISTORICAL OVERVIEW The historical development of ejector power plants goes back to the early 20th century. The first experimental investigations took place in 1905. Mosonyi [1] cites Herschel as having applied special solutions as early as 1909. There were three main types of construction here.  excess discharge is jetted into the draft tube through the ejector channel  excess discharge is released through overfall spillways around the draft tube  excess discharge is released through spillway chute over the draft tube The heyday for ejector power plants was the 1930s. Especially in the Soviet Union, but also in Europe and the United States, plants of various kinds were planned and built (Hodenpyl power station USA, Kembs power plant on the Rhine, and Alcona power station USA). Hydropower plants utilizing the ejector effect to reduce the loss of drop height in flood conditions by lowering the water level in the tail race were examined in greater detail, for example, in the early 1950s on the basis of built facilities in the then Soviet Union [2]. 1365