Raceway Pond: 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

○ Max Volume The maximum volume that a unit of this type is available for purchase in the market.	10,000 m³	Positive
◙ Vessel Volume The volume of the raceway pond.	0.0 m³	Positive
○ Depth The depth of the raceway pond.	0.5 m	Positive
○ Length/Width The length to width ratio of the raceway pond.	10.0	Positive
● Length The length of the raceway pond.	0 m	Positive
● Width The width of the raceway pond.	0 m	Positive

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

Sizing: Design Mode

In Design Mode, the user specifies the Maximum Volume and the program calculates the Number of Units and the Volume. The liquid volume demand is specified by the operation(s) carried out as part of the (one or more) unit procedure(s) hosted by the equipment resource. Typically, even during the span of a single procedure, more than one operations may demand different volumes. The software will size the vessel based on the largest demand on liquid volume amongst all operations executed in the vessel. Once the largest liquid volume is determined, it is divided by the maximum Working to Vessel Volume Ratio of all operations executed in the vessel in order to determine the actual volume required to carry out the most demanding of the operations. If that volume exceeds the maximum volume specification per unit then the software will assume multiple number of identical units (each with volume equal to the total volume required divided by the number of units). Based on the vessel’s volume and the specified values for the vessel’s depth and length to width ratio, the vessel’s length and width are calculated.

Sizing: Rating Mode

In Rating Mode, the user specifies the Number of Units, Volume, Depth and Length/Width ratio. Based on the vessel’s volume and the specified values for the vessel’s depth and length to width ratio, the vessel’s length and width are calculated.

Costing

The equipment purchase cost is based on the vessel volume. The built-in model is based on the available data in the literature.

For more information on this equipment, see Raceway Pond.

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