5.5 Pump Calculations capacity Mass flow rate in of pump
= 3931.878kg/hr
Average Density ρ
= 794.91 kg/m 3
Volumetric flow rate
= Mass flow rate / density = 3931.878/794.91 m 3 /hr =4.95 m 3 /hr = 21.7 GPM
h = 35ft = 10.66m
Efficiency = 80 - 0.0285(H) +3.78*10 -4(H) (GPM) - 2.38*10 -7(H) (GPM)2 + 5.39*10-4 (H)2- 6.39*10-7(H)2(GPM) + 4*10-10(H)2(GPM) 2 = 80 - 0.0285(35) +3.78*10 -4(35) (21.7) - 2.38*10 -7(35) (21.7)2 + 5.39*10-4 (35)2 6.39*10-7(35)2(21.7) + 4*10-10(35)2(21.7) 2 = 79% Power = (GPM) ΔP / (1715) (Efficiency) = (21.7)(14)/(1715*0.79) Power = 0.32 hp
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