Question

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pump head = 330 feet, d = 0.78 feet so use 10” pipe

9. A farmer has a pump that is rated at 100 horsepower that he would like to utilize to irrigate potatoes. He needs to install 2500 feet of PVC pipe to extend from his pond at elevation 100 feet to his field at an elevation of 300 feet. He needs to supply 2 cfs with 50 psi available at the field to operate his sprinklers. The pump/motor efficiency is 75 percent. a) What head can the pump reasonably be expected to supply? b) What is the minimum diameter of commercially available pipe he can use? Include all minor losses (entrance, exit, and one 90- deg bend) and use the Hazen-Williams equation.

Answer 1

olu tion ,- (a) powlti CA ph, 330.66P Head unp b)

2-7 閂으JY (a(grm),"r hf o.ee 20 g 3 : 186 2-х uu8.83 Minor lossen (

16 S6795:19 130.66 4 130. 66 f