#################################################################################
# WaterTAP Copyright (c) 2020-2024, The Regents of the University of California,
# through Lawrence Berkeley National Laboratory, Oak Ridge National Laboratory,
# National Renewable Energy Laboratory, and National Energy Technology
# Laboratory (subject to receipt of any required approvals from the U.S. Dept.
# of Energy). All rights reserved.
#
# Please see the files COPYRIGHT.md and LICENSE.md for full copyright and license
# information, respectively. These files are also available online at the URL
# "https://github.com/watertap-org/watertap/"
#################################################################################
import pyomo.environ as pyo
from ..util import (
register_costing_parameter_block,
make_capital_cost_var,
)
def build_electroNP_cost_param_block(blk):
blk.HRT = pyo.Var(
initialize=1.3333,
doc="Hydraulic retention time",
units=pyo.units.hr,
)
blk.sizing_cost = pyo.Var(
initialize=1000,
doc="Reactor sizing cost",
units=pyo.units.USD_2020 / pyo.units.m**3,
)
costing = blk.parent_block()
blk.magnesium_chloride_cost = pyo.Param(
mutable=True,
initialize=0.0786,
doc="Magnesium chloride cost",
units=pyo.units.USD_2020 / pyo.units.kg,
)
costing.register_flow_type("magnesium chloride", blk.magnesium_chloride_cost)
blk.phosphorus_recovery_value = pyo.Param(
mutable=True,
initialize=-0.07,
doc="Phosphorus recovery value",
units=pyo.units.USD_2020 / pyo.units.kg,
)
costing.register_flow_type("phosphorus salt product", blk.phosphorus_recovery_value)
[docs]@register_costing_parameter_block(
build_rule=build_electroNP_cost_param_block,
parameter_block_name="electroNP",
)
def cost_electroNP(
blk, cost_electricity_flow=True, cost_MgCl2_flow=True, cost_phosphorus_flow=True
):
"""
ElectroNP costing method
"""
cost_electroNP_capital(
blk,
blk.costing_package.electroNP.HRT,
blk.costing_package.electroNP.sizing_cost,
)
t0 = blk.flowsheet().time.first()
if cost_electricity_flow:
blk.costing_package.cost_flow(
pyo.units.convert(
blk.unit_model.electricity[t0],
to_units=pyo.units.kW,
),
"electricity",
)
if cost_MgCl2_flow:
blk.costing_package.cost_flow(
pyo.units.convert(
blk.unit_model.MgCl2_flowrate[t0],
to_units=pyo.units.kg / pyo.units.hr,
),
"magnesium chloride",
)
if cost_phosphorus_flow:
blk.costing_package.cost_flow(
pyo.units.convert(
blk.unit_model.byproduct.flow_vol[t0]
* blk.unit_model.byproduct.conc_mass_comp[t0, "S_PO4"],
to_units=pyo.units.kg / pyo.units.hr,
),
"phosphorus salt product",
)
[docs]def cost_electroNP_capital(blk, HRT, sizing_cost):
"""
Generic function for costing an ElectroNP system.
"""
make_capital_cost_var(blk)
blk.HRT = pyo.Expression(expr=HRT)
blk.sizing_cost = pyo.Expression(expr=sizing_cost)
flow_in = pyo.units.convert(
blk.unit_model.mixed_state[0].flow_vol,
to_units=pyo.units.m**3 / pyo.units.hr,
)
blk.costing_package.add_cost_factor(blk, "TIC")
blk.capital_cost_constraint = pyo.Constraint(
expr=blk.capital_cost
== blk.cost_factor
* pyo.units.convert(
blk.HRT * flow_in * blk.sizing_cost,
to_units=blk.costing_package.base_currency,
)
)