#################################################################################
# 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/"
#################################################################################
"""
This module contains a zero-order representation of a landfill unit.
"""
from pyomo.environ import units as pyunits, Var
from idaes.core import declare_process_block_class
from watertap.core import build_pt, constant_intensity, ZeroOrderBaseData
# Some more inforation about this module
__author__ = "Chenyu Wang"
[docs]@declare_process_block_class("LandfillZO")
class LandfillZOData(ZeroOrderBaseData):
"""
Zero-Order model for a landfill unit operation.
"""
CONFIG = ZeroOrderBaseData.CONFIG()
[docs] def build(self):
super().build()
self._tech_type = "landfill"
build_pt(self)
constant_intensity(self)
self.capacity_basis = Var(
self.flowsheet().time,
units=pyunits.kg / pyunits.hr,
doc="capacity basis for capital cost",
)
self.total_mass = Var(
self.flowsheet().time,
units=pyunits.kg / pyunits.hr,
doc="total mass flow rate",
)
self._fixed_perf_vars.append(self.capacity_basis)
@self.Constraint(self.flowsheet().time, doc="Total mass constraint")
def total_mass_constraint(b, t):
return b.total_mass[t] == sum(
pyunits.convert(
b.inlet.flow_mass_comp[t, m], to_units=pyunits.kg / pyunits.hr
)
for m in b.config.property_package.component_list
)
self._perf_var_dict["Capacity Basis (kg/hr)"] = self.capacity_basis
self._perf_var_dict["Total Mass (kg/hr)"] = self.total_mass
@property
def default_costing_method(self):
return self.cost_landfill
[docs] @staticmethod
def cost_landfill(blk, number_of_parallel_units=1):
"""
General method for costing landfill. Capital cost is based on the total mass and
capacity basis.
Args:
number_of_parallel_units (int, optional) - cost this unit as
number_of_parallel_units parallel units (default: 1)
"""
t0 = blk.flowsheet().time.first()
sizing_term = blk.unit_model.total_mass[t0] / blk.unit_model.capacity_basis[t0]
# Get parameter dict from database
parameter_dict = blk.unit_model.config.database.get_unit_operation_parameters(
blk.unit_model._tech_type, subtype=blk.unit_model.config.process_subtype
)
# Get costing parameter sub-block for this technology
A, B = blk.unit_model._get_tech_parameters(
blk,
parameter_dict,
blk.unit_model.config.process_subtype,
["capital_a_parameter", "capital_b_parameter"],
)
# Determine if a costing factor is required
factor = parameter_dict["capital_cost"]["cost_factor"]
# Call general power law costing method
blk.unit_model._general_power_law_form(
blk, A, B, sizing_term, factor, number_of_parallel_units
)
# Register flows
blk.config.flowsheet_costing_block.cost_flow(
blk.unit_model.electricity[t0], "electricity"
)