multi pump test rig data n calculation
DESCRIPTION
gkfTRANSCRIPT
READING
PRESSURE(m.H2O)
VACUUM(m.H2O)
PUMP HEAD
(m.H2O)
VOLUME(ltr)
TIME(s)
FLOW RATE(m3/s)
TORQUE(N.m)
INPUT POWER
(W)
HYDRAULIC
POWER(W)
EFFICIENCY(%)
1)1520 2.5 0.4 2.1 5 5.75 8.7x10-4 1.95 310.89 17.92 5.762)1405 2.2 0.3 1.9 5 5.88 8.5x10-4 1.7 250.123 15.85 6.343)1304 1.9 0.2 1.7 5 6.65 7.5 x10-4 1.54 210.294 12.54 5.964)1200 1.7 0.1 1.6 5 7.46 6.7 x10-4 1.43 179.699 10.52 5.855)1106 1.5 0.0 1.5 5 8.50 5.9 x10-4 1.23 142.459 8.65 6.076)1006 1.3 0.0 1.3 5 9.20 4.4 x10-4 1.13 119.643 6.93 5.79
DATA COLLECTION
READING 1(Calculation sample)
Pump Head, H = Pressure(m.H2O) - Vacuum(m.H2O)
= 2.5 – 0.4
= 2.1 m.H2O
Flow Rate,Q = V(m3)/t(s)
= 0.005/5.75
=8.7x10-4 m3/s
Input Power,Pin = 2πN/60 x T
= 2π(1520)/60 x 1.95
= 310.89 W
Hydraulic = ρ.g.Q.HPower,Po = (1000)(9.81)(8.7x10-4)(2.1)
=17.92 W
Efficiency,η = Po/ Pin
= 17.92/310.89
= 5.76%
