Flotation Tank: Equipment Tab

Variable Definitions, Ranges and Default Values

The following table shows the meaning of the variables appearing in this tab, as well as their default values and their generally acceptable range. Note that due to the manner by which the variables are used by the sizing and costing equations, the range of acceptable values may be further reduced.

Variable	Default Value	Range

◙ Surface Area The total surface area of the tank.	0.0 m²	Positive
◙ Max Surface Area The maximum surface area that a unit of this type is available for purchase in the market.	2500.0 m²or 5000.0 m²	Positive
○ Length/Width The length over width ratio of the tank.	3.0	Positive
● Length The length of the tank.	0.0 m	Positive
● Width The width of the tank.	0.0 m	Positive
● Throughput The throughput of the liquid.	0.0 L/h	Positive
◙ Tank Depth The tank depth can be set by the user or calculated based on the Detention Time.	3.0 m	Positive

Symbol Key: ○ User-specified value (always input); ● Calculated value (always output); ◙ Sometimes input, sometimes output

Sizing: Design Mode

In Calculate (Design Mode), the user specifies the Maximum Surface Area and the system computes the Number of Units and the Surface Area. In Design Mode, the Tank Depth is either specified or calculated based on the detention time. For more information on sizing of a flotation tank, see Flotation: Modeling Calculations.

Sizing: Rating Mode

In User-Defined (Rating Mode), the user specifies the Number of Units and the Surface Area. In Rating Mode, the tank depth is always specified.

Costing

The equipment purchase cost is based on the throughput, and is calculated by the built in model for a flotation tank with a minimum throughput of 1.5 m³/h and a maximum throughput of 160 m³/h.

For more information on this equipment, see Flotation Tank.

For information on the left-hand side variables and options, see Equipment Data Dialog: Equipment tab.