def model(self):
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.params = WaterParameterBlock(default={"solute_list": ["viruses_enteric"]})
m.fs.unit = AerationBasinZO(
default={"property_package": m.fs.params, "database": db}
)
return m
def model(self):
m = ConcreteModel()
m.db = Database()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.params = WaterParameterBlock(
default={"solute_list": ["viruses_enteric", "bod"]})
m.fs.unit = AerationBasinZO(default={
"property_package": m.fs.params,
"database": m.db})
m.fs.unit.inlet.flow_mass_comp[0, "H2O"].fix(10)
m.fs.unit.inlet.flow_mass_comp[0, "viruses_enteric"].fix(1)
m.fs.unit.inlet.flow_mass_comp[0, "bod"].fix(1)
return m
def test_costing():
m = ConcreteModel()
m.db = Database()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.params = WaterParameterBlock(
default={"solute_list": ["sulfur", "toc", "tss"]})
m.fs.costing = ZeroOrderCosting()
m.fs.unit1 = AerationBasinZO(default={
"property_package": m.fs.params,
"database": m.db})
m.fs.unit1.inlet.flow_mass_comp[0, "H2O"].fix(10000)
m.fs.unit1.inlet.flow_mass_comp[0, "sulfur"].fix(1)
m.fs.unit1.inlet.flow_mass_comp[0, "toc"].fix(2)
m.fs.unit1.inlet.flow_mass_comp[0, "tss"].fix(3)
m.fs.unit1.load_parameters_from_database(use_default_removal=True)
assert degrees_of_freedom(m.fs.unit1) == 0
m.fs.unit1.costing = UnitModelCostingBlock(default={
"flowsheet_costing_block": m.fs.costing})
assert isinstance(m.fs.costing.aeration_basin, Block)
assert isinstance(m.fs.costing.aeration_basin.capital_a_parameter,
Var)
assert isinstance(m.fs.costing.aeration_basin.capital_b_parameter,
Var)
assert isinstance(m.fs.costing.aeration_basin.reference_state, Var)
assert isinstance(m.fs.unit1.costing.capital_cost, Var)
assert isinstance(m.fs.unit1.costing.capital_cost_constraint,
Constraint)
assert_units_consistent(m.fs)
assert degrees_of_freedom(m.fs.unit1) == 0
assert m.fs.unit1.electricity[0] in \
m.fs.costing._registered_flows["electricity"]