The impeller is 0.5m in diameter and 3 cm wide at outer and runs at a speed of 1200 rpm. The exit blade angle is 20$^{\circ}$.if the manometer efficiency of the pump is 85%. Determine the discharge and the pressure at the suction and delivery ends at the pump

Given

Static lift $H_{3}$=h_{s}+h_{d}=40m

Suction lift $h_{3}$=3m

$d_{3}=d_{d}$=35cm=0.35 m

h$f_{3}$=2m,hfd=6m

impeller outer diameter

$O_{2}$=0.5m

width $B_{2}$=3 cm=0.03m

N=1200 rpm

Exit blade angle

$\phi=20^{\circ}$

$n_{mano}$=1200 rpm

Exit blade angle

$\phi=20^{\circ}$

1) Discharge Q

$u_{2}=\frac{\pi\times D_{2}N}{60}=\frac{\pi\times 0.5\times 1200}{60}$=31.42 m/s

$n_{mano}=\frac{Vw_{s}-u2}{gH_{m}}$

Hm=$\frac{Vws=u2}{gHm}$

Hm=Hs+$hf_{3}+hfd+\frac{{Vd}^{2}}{2g}$

on neglecting $\frac{Vd^{2}}{2}$ since it is negligible the manometer head …