Parameter & design criteria*

Equation* & obtained value

Design flow, Q_max= 60,000 m³/day

Approach velocity in the channel, V_h =0.6 m/s

Depth to width ratio = 1:1.5

No. of screen in unit at less 2

Area of screen

$A_s=\frac{Q_{\max }}{V_h}=1.5{\text{m}}^2$

Clear spacing between bars, S = 30 mm

Thick of bar, t_bar =10 mm

Number of bars in the screen:

$N\ast t_{\text{bar}}+\left(N+1\right)S=W=37$

Coefficient of discharge for clean screen, C = 0.7

$\text{velocitythroughscreennars}{V}_{th}=0.615$ m/s

$\text{Headloss}=\frac{1}{C}\ast \frac{\left(V_{th}^2-V_h^2\right)}{2g}=1.4\text{mm}$