1. To model power production in a traditional hydroelectricity unit, we can use the below schematic figure. Water (p = 998 kg/m³, µ= 0.001 kg/m.s) flows from a large tank at elevation 60 m through a cast iron pipe with total length of L = 100 m and diameter 0.1 m. There are three losses associated with sharp-edge entrance, 90° reg- ular elbow and an open globe valve. Outlet of the valve is discharged to atmosphere. The velocity of the water in the pipe is 3 m/s. For minor losses use values for a flanged pipe with diameter of 4". Find the power produced in the turbine in kW unit. Hint: If we write energy grade equation between point 1 (surface of water in tank) and point 2 (left hand side of the valve); P V? + 21 – hturbine - Ahtot 29 P V + 22 2g %3D pg pg where, P P2 = Patm and Vi 0 (large tank) Sharp-edge entrance 60 m Elbow Turbine Globe Vabue

1. To model power production in a traditional hydroelectricity unit, we can use the below schematic figure. Water (p = 998 kg/m³, µ= 0.001 kg/m.s) flows from a large tank at elevation 60 m through a cast iron pipe with total length of L = 100 m and diameter 0.1 m. There are three losses associated with sharp-edge entrance, 90° reg- ular elbow and an open globe valve. Outlet of the valve is discharged to atmosphere. The velocity of the water in the pipe is 3 m/s. For minor losses use values for a flanged pipe with diameter of 4". Find the power produced in the turbine in kW unit. Hint: If we write energy grade equation between point 1 (surface of water in tank) and point 2 (left hand side of the valve); P V? + 21 – hturbine - Ahtot 29 P V + 22 2g %3D pg pg where, P P2 = Patm and Vi 0 (large tank) Sharp-edge entrance 60 m Elbow Turbine Globe Vabue

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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