Aeration Tank Costing Method

Note

The aeration tank inherits from the CSTR with injection class and uses the same costing relationships.

Costing Method Parameters

The following parameters are constructed for the unit on the FlowsheetCostingBlock (e.g., m.fs.costing.cstr_injection) when applying the cost_cstr_injection costing method in the watertap_costing_package:

Description	Symbol	Parameter Name	Default Value	Units
Capital cost A parameter \(^1\)	\(A\)	capital_a_parameter	1.1141e3	\(\text{USD}_{1997}\)
Capital cost B parameter \(^1\)	\(B\)	capital_b_parameter	0.6	\(\text{dimensionless}\)

Costing Method Variables

There are no costing method variables unique to the aeration tank.

Capital Cost Calculations

Capital cost is dependent upon the unit’s volume, \(V\), as shown in the equation below.

\[C_{cap,tot} = A * V^{B}\]

Operating Cost Calculations

There are no operating costs unique to the aeration tank.

Code Documentation

• watertap.costing.unit_models.cstr_injection

References

[1] Eberle, Annika, Irina Tsiryapkina, Steve Peterson, Laura Vimmerstedt, Dylan Hettinger, and Daniel Inman. 2020. An Overview of the Waste-to-Energy System Simulation (WESyS) Model. Golden, CO: National Renewable Energy Laboratory. NREL/TP-6A20-77166. https://www.nrel.gov/docs/fy21osti/77166.pdf.