(5.3.1)
\Consider Single - acting pump
\Number of Cylinders n = 3
\Piston diameter d = 12 cm
\d = 12/100 m = 0.12 m
\Stroke length s = 50 m
\s = 50/100 = 0.5 m
\Slip = 13% = 0.13
\Speed N = 350 RPM
\Prassure P = 1000 kPa = 1 MPa
\1 MPa = 145.0377 psi
\P = 145.0377 Psi
\Efficiency η = 90 % = 0.9
\Cross sectional area of piston A = (¼)πd2
\A = (¼)π(0.12)2
\A = 0.0113 m2
\Volume of Water discharge Q = (A×s×n×N)/231
\Q = (0.0113×0.5×3×350)/231
\Q = 0.0257 Gallons per minute
\Fluid Hourse Power FHP = (P x Q) / (1714 x η)
\P = Pressure in psi ( per square inch )
\Q = Flowrate in GPM ( Gallons per minute )
\FHP = (145.0377 x 0.0257) / (1714 x 0.9)
\FHP = 0.0024 HP
\1 Hp = 745.699872 Watts
\Power = 0.0024 x 745.699872
\Power = 1.7896 Watts
\The power required to drive the pump is 1.7896 Watts.
\