Junction Box: 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.	400.0 m²	Positive
○ Tank Depth The depth of the tank.	1.5 m	(0,100]
○ Vessel Volume The volume of the tank	0.0 L	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. See also Junction Box Mixing: Modeling Calculations

Sizing: Rating Mode

In User-Defined (Rating Mode), the user specifies the Number of Units and the Surface Area.

Th user always specifies the tank depth.

Costing

The equipment purchase cost supplied by the built-in model is zero, however the user may specify his own costing model if he wishes.

For more information on this equipment, see Junction Box.

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