#################################################################################
# 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,
cost_rectifier,
make_capital_cost_var,
make_fixed_operating_cost_var,
)
def build_electrodialysis_cost_param_block(blk):
# The following costing itemization and values are referenced to "Desalination 452 (2019) 265–278"
blk.membrane_capital_cost = pyo.Var(
initialize=160,
doc="Membrane and capitcal costs in [US$/m^2-membrane-area]",
units=pyo.units.USD_2018 / (pyo.units.meter**2),
)
blk.factor_membrane_replacement = pyo.Var(
initialize=0.2,
doc="Membrane and equipment (other stack components) housing replacement factor, equal to 1/lifetime.",
units=pyo.units.year**-1,
)
blk.stack_electrode_captical_cost = pyo.Var(
initialize=2100,
doc="Electrode cost in [US$/m^2-electrode-area] ",
units=pyo.units.USD_2018 / (pyo.units.meter**2),
)
blk.factor_stack_electrode_replacement = pyo.Var(
initialize=0.2,
doc="Stack and electrode replacement factor, equal to 1/lifetime.",
units=pyo.units.year**-1,
)
[docs]@register_costing_parameter_block(
build_rule=build_electrodialysis_cost_param_block,
parameter_block_name="electrodialysis",
)
def cost_electrodialysis(blk, cost_electricity_flow=True, has_rectifier=False):
"""
Function for costing the Electrodialysis unit
Args:
cost_electricity_flow (:obj:`bool`, optional): Option for including the
costing of electricity. Defaults to True.
has_rectifier (:obj:`bool`, optional): Option for including a rectifier.
Defaults to False.
"""
t0 = blk.flowsheet().time.first()
# Changed this to grab power from performance table which is identified
# by same key regardless of whether the Electrodialysis unit is 0D or 1D
if cost_electricity_flow:
if not has_rectifier:
blk.costing_package.cost_flow(
pyo.units.convert(
blk.unit_model.get_power_electrical(t0),
to_units=pyo.units.kW,
),
"electricity",
)
else:
power = blk.unit_model.get_power_electrical(blk.flowsheet().time.first())
cost_rectifier(blk, power=power, ac_dc_conversion_efficiency=0.9)
cost_electrodialysis_stack(blk)
[docs]def cost_electrodialysis_stack(blk):
"""
Generic function for costing the stack in an electrodialysis unit.
Assumes the unit_model has a `cell_pair_num`, `cell_width`, and `cell_length`
set of variables used to size the total membrane area.
"""
make_capital_cost_var(blk)
make_fixed_operating_cost_var(blk)
blk.costing_package.add_cost_factor(blk, "TIC")
if blk.find_component("capital_cost_rectifier") is not None:
blk.capital_cost_constraint = pyo.Constraint(
expr=blk.capital_cost
== blk.cost_factor
* (
pyo.units.convert(
blk.costing_package.electrodialysis.membrane_capital_cost
* (
2
* blk.unit_model.cell_pair_num
* blk.unit_model.cell_width
* blk.unit_model.cell_length
)
+ blk.costing_package.electrodialysis.stack_electrode_captical_cost
* (2 * blk.unit_model.cell_width * blk.unit_model.cell_length),
to_units=blk.costing_package.base_currency,
)
+ blk.capital_cost_rectifier
)
)
else:
blk.capital_cost_constraint = pyo.Constraint(
expr=blk.capital_cost
== blk.cost_factor
* pyo.units.convert(
blk.costing_package.electrodialysis.membrane_capital_cost
* (
2
* blk.unit_model.cell_pair_num
* blk.unit_model.cell_width
* blk.unit_model.cell_length
)
+ blk.costing_package.electrodialysis.stack_electrode_captical_cost
* (2 * blk.unit_model.cell_width * blk.unit_model.cell_length),
to_units=blk.costing_package.base_currency,
)
)
blk.fixed_operating_cost_constraint = pyo.Constraint(
expr=blk.fixed_operating_cost
== pyo.units.convert(
blk.costing_package.electrodialysis.factor_membrane_replacement
* blk.costing_package.electrodialysis.membrane_capital_cost
* (
2
* blk.unit_model.cell_pair_num
* blk.unit_model.cell_width
* blk.unit_model.cell_length
)
+ blk.costing_package.electrodialysis.factor_stack_electrode_replacement
* blk.costing_package.electrodialysis.stack_electrode_captical_cost
* (2 * blk.unit_model.cell_width * blk.unit_model.cell_length),
to_units=blk.costing_package.base_currency
/ blk.costing_package.base_period,
)
)