Description

Given the water temperature, the flow to be treated, the superficial area and the depth of the compartment, the number of trays, the number and diameter of the orifices in each tray, the distance between them, and the discharge coefficient, this calculation determines:

• Detention time
• Distance between trays
• Jet reach
• Velocity gradient
• Head loss of the compartment

Inputs

Parameter	Default Units	Description
Temperature	°C	Water temperature
Flow	m³/s	Flow to be treated
Superficial area	m²	Superficial area of the compartment
Depth of the compartment	m	Depth of the compartment
Distance between orifices	m	Distance between orifices
Number of trays	-	Number of trays in the compartment
Number of orifices	-	Number of orifices per tray
Diameter of the orifices	mm	Diameter of the orifices
Discharge coefficient	-	Discharge coefficient

Outputs

Parameter	Default Units	Description
Detention time	s	Time required for retention
Distance between trays	m	Vertical distance between trays
Velocity gradient	s⁻¹	Velocity gradient in the compartment
Head loss of the compartment	m	Hydraulic head loss
Flow	L/s	Flow exiting the compartment