Compute the pressure at a depth Z below the surface in a reservoir behind a hydroelectric dam. Compute the work done by a volume of water ?V as it passes from this pressure on one side of a turbine to essentially zero pressure on the other side. Show that this analysis yields the same formula (31.2)

for the power output as the energy analysis presented in ?31.1.1.

Transcribed Image Text:

P = e dV/dt = pgZeQ