Detailed WaterTAP Costing Package

The detailed WaterTAP costing package contains the costing package with detailed technoeconomic data. It inherits all the functionality and parameters of the WaterTAP Costing Framework base class Common Global Costing Parameters.

Costing Index and Technoeconomic Factors

The following technoeconomic factors are specific to the WaterTAP Costing Detailed Package. These parameters are chosen to give identical results as the WaterTAPCosting package which uses only simpler higher-level parameters.

Cost factor	Variable	Name	Default Value	Description
Land cost factor	\(f_{land}\)	`land_cost_percent_FCI`	0%	Unit process land cost as percentage of capital cost
Working capital cost factor	\(f_{work}\)	`working_capital_percent_FCI`	0%	Unit process working capital cost as percentage of capital cost
Salaries cost factor	\(f_{sal}\)	`salaries_percent_FCI`	0.20134%	Unit process salaries cost as percentage of capital cost
Maintenance cost factor	\(f_{maint}\)	`maintenance_costs_percent_FCI`	1.6107%	Unit process maintenance costs as percentage of capital cost
Lab cost factor	\(f_{lab}\)	`laboratory_fees_percent_FCI`	0.60403%	Unit process laboratory costs as percentage of capital cost
Insurance/taxes cost factor	\(f_{ins}\)	`insurance_and_taxes_percent_FCI`	0.40268%	Unit process insurance & taxes cost as percentage of capital cost
Benefits cost factor	\(f_{ben}\)	`benefit_percent_of_salary`	90%	Unit process benefits cost as percentage of salary costs
Total investment factor	\(f_{toti}\)	`total_investment_factor`	1.0	Total investment factor [calculated]
Maintenance-labor-chemical factor	\(f_{mlc}\)	`maintenance_labor_chemical_factor`	0.03	Maintenance, labor, and chemical factor [calculated]

High-level factor calculations

Total total investement factor \(f_{toti}\) is calculated from the land cost and working capital cost factors \(f_{land}\), \(f_{work}\):

\[f_{toti} = 1 + f_{work} + f_{land}\]

Total maintenance-labor-chemical factor \(f_{mlc}\) is calculated from the salaires, maintenance, lab, insurance/taxes, and benefits cost factors:

\[f_{mlc} = f_{sal} + f_{ben} f_{sal} + f_{maint} + f_{lab} + f_{ins}\]

Costing Process-Wide Costs

The WaterTAPCostingDetailed class includes variables and constraints necessary to calculate process-wide costs, in addition to those provided by the WaterTAP Costing Framework Costing Process-Wide Costs.

Cost	Variable	Name	Description
Unit capital cost	\(C_{ca,u}\)	`aggregate_capital_cost`	Unit processes capital cost
Land cost	\(C_{land}\)	`land_cost`	Cost of land for unit process
Working capital cost	\(C_{work}\)	`working_capital`	Working capital for unit process
Salary cost	\(C_{sal}\)	`salary_cost`	Salary cost for unit process
Benefits cost	\(C_{ben}\)	`benefits_cost`	Benefits cost for unit process
Maintenance cost	\(C_{maint}\)	`maintenance_cost`	Maintenance cost for unit process
Laboratory cost	\(C_{lab}\)	`laboratory_cost`	Laboratory cost for unit process
Insurance & taxes cost	\(C_{ins}\)	`insurance_and_taxes_cost`	Insurance & taxes for unit process
Total annualized cost	\(C_{annual}\)	`total_annualized_costs`	Total cost on a annualized basis

Land cost is defined as:

\[C_{land} = f_{land} C_{ca,u}\]

Working capital cost is defined as:

\[C_{land} = f_{work} C_{ca,u}\]

Salary cost is defined as:

\[C_{sal} = f_{sal} C_{ca,u}\]

Benefits cost is defined as:

\[C_{ben} = f_{ben} f_{sal} C_{ca,u}\]

Maintenance cost is defined as:

\[C_{maint} = f_{maint} C_{ca,u}\]

Land cost is defined as:

\[C_{land} = f_{land} C_{ca,u}\]

All other costing calculations are provided through the WaterTAP Costing Framework: Costing Calculations.

Class Documentation

WaterTAPCostingDetailedData