def test_nf_costing(self, model):
model.fs.unit1 = NanofiltrationZO(default={
"property_package": model.fs.params,
"database": model.db})
model.fs.unit1.inlet.flow_mass_comp[0, "H2O"].fix(10000)
model.fs.unit1.inlet.flow_mass_comp[0, "sulfur"].fix(1)
model.fs.unit1.inlet.flow_mass_comp[0, "toc"].fix(2)
model.fs.unit1.inlet.flow_mass_comp[0, "tss"].fix(3)
model.fs.unit1.load_parameters_from_database()
assert degrees_of_freedom(model.fs.unit1) == 0
model.fs.unit1.costing = UnitModelCostingBlock(default={
"flowsheet_costing_block": model.fs.costing})
assert isinstance(model.fs.costing.nanofiltration, Block)
assert isinstance(model.fs.costing.nanofiltration.capital_a_parameter,
Var)
assert isinstance(model.fs.costing.nanofiltration.capital_b_parameter,
Var)
assert isinstance(model.fs.costing.nanofiltration.reference_state, Var)
assert isinstance(model.fs.unit1.costing.capital_cost, Var)
assert isinstance(model.fs.unit1.costing.capital_cost_constraint,
Constraint)
assert_units_consistent(model.fs)
assert degrees_of_freedom(model.fs.unit1) == 0
assert model.fs.unit1.electricity[0] in \
model.fs.costing._registered_flows["electricity"]
def test_costing_non_default_subtype():
m = ConcreteModel()
m.db = Database()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.params = WaterParameterBlock(default={"solute_list": ["tds", "dye"]})
m.fs.costing = ZeroOrderCosting()
m.fs.unit = NanofiltrationZO(
default={
"property_package": m.fs.params,
"database": m.db,
"process_subtype": "rHGO_dye_rejection",
}
)
m.fs.unit.inlet.flow_mass_comp[0, "H2O"].fix(10000)
m.fs.unit.inlet.flow_mass_comp[0, "tds"].fix(1)
m.fs.unit.inlet.flow_mass_comp[0, "dye"].fix(2)
m.fs.unit.load_parameters_from_database(use_default_removal=True)
assert degrees_of_freedom(m.fs.unit) == 0
m.fs.unit.costing = UnitModelCostingBlock(
default={"flowsheet_costing_block": m.fs.costing}
)
assert isinstance(m.fs.unit.costing.capital_cost, Var)
assert isinstance(m.fs.unit.costing.capital_cost_constraint, Constraint)
assert isinstance(m.fs.costing.nanofiltration, Block)
assert isinstance(m.fs.unit.costing.variable_operating_cost, Var)
assert isinstance(m.fs.unit.costing.variable_operating_cost_constraint, Constraint)
assert_units_consistent(m.fs)
assert degrees_of_freedom(m.fs.unit) == 0
initialization_tester(m)
results = solver.solve(m)
# Check for optimal solution
assert check_optimal_termination(results)
assert pytest.approx(39162.813807, rel=1e-5) == value(m.fs.unit.area)
assert pytest.approx(0.58744, rel=1e-5) == value(m.fs.unit.costing.capital_cost)
assert pytest.approx(0.088116, rel=1e-5) == value(
m.fs.unit.costing.variable_operating_cost
)
def model(self):
m = ConcreteModel()
m.db = Database()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.params = WaterParameterBlock(
default={"solute_list": ["sulfur", "toc", "tss"]}
)
m.fs.unit = NanofiltrationZO(
default={"property_package": m.fs.params, "database": m.db}
)
m.fs.unit.inlet.flow_mass_comp[0, "H2O"].fix(10000)
m.fs.unit.inlet.flow_mass_comp[0, "sulfur"].fix(1)
m.fs.unit.inlet.flow_mass_comp[0, "toc"].fix(2)
m.fs.unit.inlet.flow_mass_comp[0, "tss"].fix(3)
return m
def model(self):
m = ConcreteModel()
m.db = Database()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.params = WaterParameterBlock(default={"solute_list": ["tds", "dye"]})
m.fs.unit = NanofiltrationZO(
default={
"property_package": m.fs.params,
"database": m.db,
"process_subtype": "rHGO_dye_rejection",
}
)
m.fs.unit.inlet.flow_mass_comp[0, "H2O"].fix(0.9475)
m.fs.unit.inlet.flow_mass_comp[0, "tds"].fix(0.05)
m.fs.unit.inlet.flow_mass_comp[0, "dye"].fix(0.0025)
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 = NanofiltrationZO(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.nanofiltration, Block)
assert isinstance(m.fs.costing.nanofiltration.capital_a_parameter, Var)
assert isinstance(m.fs.costing.nanofiltration.capital_b_parameter, Var)
assert isinstance(m.fs.costing.nanofiltration.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"]