Calculating Water Pumping Requirements for River-to-Dam System

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To calculate the pumping requirements for a river-to-dam system, the total head needed from the pump must account for the elevation gain of 100 meters and any additional head loss due to friction in the 25 km concrete-lined steel pipe. The required flow rate is 100 megalitres per day, which necessitates determining the appropriate pipe size to manage velocity and minimize head loss. Electrical power requirements will depend on the total head and flow rate, following the pump power formula. It's essential to know the elevation of the dam to accurately calculate the total head. Providing preliminary calculations or attempts is encouraged for ethical assistance.
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How is following calculated ?
Pumping water from river, up a hill 100 metres high, it then runs downhill into a dam.
Need to deliver 100 megalitres a day, the pipe will be concrete lined steel and the distance about 25 km.
What is total head required from the pump and what is the electrical power needed.
 
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Is this homework? You will have to show what you've tried so far, because it's not ethical for us to simply solve the problem for you.

And you need to know what the elevation of the dam is too...
 
Agreed with Mech. btw you're also going to need a pipe size for velocity and subsequent head loss calcs.
 

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