Q3: A hydro-electric power station has a reservoir of area 2.5 km²and capacity 5.5 x 10°m³. The effective head of water is 100 meters. The penstock, turbine and generation efficiencies are respectively 90%, 85% and 80%. (1) Calculate the total electrical energy that can be generated from the power station. (2) If a load of 20,000 kW has been supplied for 4 hours, find the fall in reservoir level.

Q3: A hydro-electric power station has a reservoir of area 2.5 km²and capacity 5.5 x 10°m³. The effective head of water is 100 meters. The penstock, turbine and generation efficiencies are respectively 90%, 85% and 80%. (1) Calculate the total electrical energy that can be generated from the power station. (2) If a load of 20,000 kW has been supplied for 4 hours, find the fall in reservoir level.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Q3: A hydro-electric power station has a reservoir of area 2.5 km²and
capacity 5.5 x 106m³. The effective head of water is 100 meters. The
penstock, turbine and generation efficiencies are respectively 90%, 85%
and 80%.
(1) Calculate the total electrical energy that can be generated from the
power station.
(2) If a load of 20,000 kW has been supplied for 4 hours, find the fall in
reservoir level.

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