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Filters: washing flow

Input data

Washing velocity

Superficial area

Output data

Washing flow

Description

Given the superficial area of the filter and the desired ascending velocity, the filter washing flow is calculated.

Formula

$$ V_l = A \cdot U_a $$ Where:

  • $V_l$ = washing flow $\text{(m³/s)}$
  • $A$ = superficial area of the filter $\text{(m²)}$
  • $U_a$ = washing velocity $\text{(m/min)}$

FiltersFilters

Inputs

Parameter
Standard units
Description
Washing velocity ($U_a$)
m/min
Desired ascending velocity for filter washing
Superficial area ($A$)
m²
Superficial area of the filter

Outputs

Parameter
Standard units
Description
Washing flow ($V_l$)
L/s
Required flow rate for filter washing

References

  • AZEVEDO NETTO, J. M. DE. Manual de hidráulica. 9. Ed. São Paulo, Blucher, 2015.