The simplest arrangement of a low-head hydro-electric unit is that proposed by the well-known American engineer, L. F. Harza in 1919–22; Fig. 1 is taken from his Patent Specification. The generator rotor is mounted on the propeller runner, the water flowing through the generator rim and the turbine casing being sealed against the flanks of the generator rim on either side. The unit has a horizontal shaft so that an inlet bell mouth suffices to lead the water to the runner, and the draft tube can be the straight diffuser, which is the most efficient form of energy recovery.
KeywordsTorque Polythene Rubber Peri Excavation
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Articles from Journals
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