# Trash racks

## Values for calculation

## Calculation

### Velocity of flow through trash rack, computed gross area

### Loss of head through racks

### Loss coefficient

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$$v=\cfrac{Q_{max}\cdot 10^6}{w\cdot h}$$

$$h_t=K_s\cdot\left(\cfrac{t}{b}\right)^{\cfrac{4}{3}}\cdot\cfrac{v^2}{2\cdot g}\cdot\sin{α}$$

$$ζ=\cfrac{2\cdot g\cdot h_t}{v^2}$$