Question

Mechanical Energy Consider the dam shown below operating under the following conditions: value parameter turbine inlet area 6 m2 turbine inlet depth 100 m 9 m2 turbine outlet area turbine outlet depth 20 m 700 m3/s dam volumetric flow rate 85 m water elevation change across dam in out Calculate the change in the water's mechanical energy across the dam 1. with your system defined as the turbine, and 2. your system surrounding turbine and coincident with the water surface (as depicted in the figure) 100 m W. electricity 85 m |20 m

Answer 1

A 6 m, h = 100 ns velocity of war at the thkt of he tuvbr 2X9.81X10O чч. 29 m)s velocty of ha at the art let af the tutbine 2gh2 2 = 2xq.8IX20 tiСу) change Kioehc energy Mass How ral (m) lo0o X 100 X AKE= - 5 qx108 -5405KW change inpotenthial energy CAPE) mgCh2-b) C20-189) TYIDXq.8IX -5-4936 X1o