#################################################################################
# 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,
)
"""
Ref: W. McGivney, S. Kawamura, Cost estimating manual for water treatment facilities, John Wiley & Sons, 2008. http://onlinelibrary.wiley.com/book/10.1002/9780470260036.
"""
def build_cost_param_block(blk):
# NOTE: costing data are for gravity sludge thickener for McGivney & Kawamura, 2008
blk.capital_a_parameter = pyo.Var(
initialize=4729.8,
doc="A parameter for capital cost",
units=pyo.units.USD_2007 / (pyo.units.feet),
)
blk.capital_b_parameter = pyo.Var(
initialize=37068,
doc="B parameter for capital cost",
units=pyo.units.USD_2007,
)
[docs]@register_costing_parameter_block(
build_rule=build_cost_param_block,
parameter_block_name="thickener",
)
def cost_thickener(blk, cost_electricity_flow=True):
"""
Gravity Sludge Thickener costing method
"""
make_capital_cost_var(blk)
blk.costing_package.add_cost_factor(blk, "TIC")
cost_blk = blk.costing_package.thickener
t0 = blk.flowsheet().time.first()
x = diameter = pyo.units.convert(blk.unit_model.diameter, to_units=pyo.units.feet)
blk.capital_cost_constraint = pyo.Constraint(
expr=blk.capital_cost
== blk.cost_factor
* pyo.units.convert(
cost_blk.capital_a_parameter * x + cost_blk.capital_b_parameter,
to_units=blk.costing_package.base_currency,
)
)
if cost_electricity_flow:
blk.costing_package.cost_flow(
pyo.units.convert(
blk.unit_model.electricity_consumption[t0],
to_units=pyo.units.kW,
),
"electricity",
)