A solar module is connected directly to pumps in a remote area in order to move

Question

A solar module is connected directly to pumps in a remote area in order to move water from a river to a water strong tower over a 36-hour period. the available pumps have a 240 Volt voltage rating and a 20 Amp amperage rating. One Watt=1 Joule/second. the pump efficiency rating is 0.55

a) Sketch the hierarchy block, context, and function flow

b)If the potential energy necessary to lift the needed volume of water is 1.75x10^9 joules, how many pumps are needed and how much power must be supplied by the solar module to the pumps in order to raise the needed water?

c) what if the potential energy necessary to lift the needed volume of water is 1.9x10^9 joules?

Explanation / Answer

b) Let the number of pumps required be N

Energy calculation ,E = N*240*20*36*3600*0.55 = 1.75x10^9 342144000

N = 1.75x10^9/(240*20*36*3600*0.55) = 5

Total Number of pumps required are 5.

c)

Given energy required is 1.9x10^9 joules

N = 1.9x10^9/(240*20*36*3600*0.55) = 5.55

N = 6

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