Homework SourseFlow from reservoir 1 to reservoir 2 is 025 m3s Water surfac
Flow from reservoir 1 to reservoir 2 is 0.25 m^3/s. Water surface elevation at reservoir one is 120 m, Pipe length is 200 m, Friction coefficient for the pipe is 0.015. Pipe diameter is 30 cm. Water surface elevation at reservoir 2 is 135 m, Kinematic viscosity of the water is 1 X 10^-6 m^2/s, Neglect minor losses, Pump efficiency is 0 85. A Head that should be provided by the pump to maintain this flow, The power that should be provided by the pump to maintain this flow. Sketch accurately the Hydraulic and the Energy Grade lines on the given drawing, For the same given information, will the power provided by pump be greater or less if the diameter is larger? Explain your answer Don\'t show calculations,
Solution
The Bernoulli Equation
p / + v2 / 2 g + h = constant along a streamline = H
where
H = the total head (m)
The Energy Line
The Energy Line is a line that represent the total head available to the fluid and can be expressed as:
EL = H = p / + v2 / 2 g + h = constant along a streamline
where
EL = Energy Line (m)
The Hydraulic Grade Line
The Hydraulic Grade Line is a line representing the total head available to the fluid - minus the velocity head and can be expressed as:
HGL = p / + h (4)
where
HGL = Hydraulic Grade Line (m)
The hydraulic grade line lies one velocity head below the the energy line.
