def test_build():
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties = SaponificationParameterBlock()
m.fs.reactions = SaponificationReactionParameterBlock(
default={"property_package": m.fs.properties})
m.fs.pfr = PFR(
default={
"property_package": m.fs.properties,
"reaction_package": m.fs.reactions,
"has_equilibrium_reactions": False,
"has_heat_transfer": True,
"has_pressure_change": True
})
assert hasattr(m.fs.pfr, "inlet")
assert len(m.fs.pfr.inlet.vars) == 4
assert hasattr(m.fs.pfr.inlet, "flow_vol")
assert hasattr(m.fs.pfr.inlet, "conc_mol_comp")
assert hasattr(m.fs.pfr.inlet, "temperature")
assert hasattr(m.fs.pfr.inlet, "pressure")
assert hasattr(m.fs.pfr, "outlet")
assert len(m.fs.pfr.outlet.vars) == 4
assert hasattr(m.fs.pfr.outlet, "flow_vol")
assert hasattr(m.fs.pfr.outlet, "conc_mol_comp")
assert hasattr(m.fs.pfr.outlet, "temperature")
assert hasattr(m.fs.pfr.outlet, "pressure")
assert hasattr(m.fs.pfr, "performance_eqn")
assert hasattr(m.fs.pfr.control_volume, "heat")
assert hasattr(m.fs.pfr, "heat_duty")
assert hasattr(m.fs.pfr, "deltaP")
def test_config():
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties = PhysicalParameterTestBlock()
m.fs.reactions = ReactionParameterTestBlock(
default={"property_package": m.fs.properties})
m.fs.unit = PFR(default={
"property_package": m.fs.properties,
"reaction_package": m.fs.reactions
})
# Check unit config arguments
assert len(m.fs.unit.config) == 19
assert m.fs.unit.config.material_balance_type == \
MaterialBalanceType.componentPhase
assert m.fs.unit.config.energy_balance_type == \
EnergyBalanceType.enthalpyTotal
assert m.fs.unit.config.momentum_balance_type == \
MomentumBalanceType.pressureTotal
assert not m.fs.unit.config.has_heat_transfer
assert not m.fs.unit.config.has_pressure_change
assert not m.fs.unit.config.has_equilibrium_reactions
assert not m.fs.unit.config.has_phase_equilibrium
assert not m.fs.unit.config.has_heat_of_reaction
assert m.fs.unit.config.property_package is m.fs.properties
assert m.fs.unit.config.reaction_package is m.fs.reactions
assert m.fs.unit.config.length_domain_set == [0.0, 1.0]
assert m.fs.unit.config.transformation_method == "dae.finite_difference"
assert m.fs.unit.config.transformation_scheme == "BACKWARD"
assert m.fs.unit.config.finite_elements == 20
assert m.fs.unit.config.collocation_points == 3
def sapon(self):
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties = SaponificationParameterBlock()
m.fs.reactions = SaponificationReactionParameterBlock(default={
"property_package": m.fs.properties})
m.fs.unit = PFR(default={"property_package": m.fs.properties,
"reaction_package": m.fs.reactions,
"has_equilibrium_reactions": False,
"has_heat_transfer": True,
"has_heat_of_reaction": True,
"has_pressure_change": True})
return m
def test_report():
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties = SaponificationParameterBlock()
m.fs.reactions = SaponificationReactionParameterBlock(
default={"property_package": m.fs.properties})
m.fs.pfr = PFR(
default={
"property_package": m.fs.properties,
"reaction_package": m.fs.reactions,
"has_equilibrium_reactions": False,
"has_heat_transfer": False,
"has_pressure_change": False
})
m.fs.pfr.report()
def test_initialize():
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties = SaponificationParameterBlock()
m.fs.reactions = SaponificationReactionParameterBlock(
default={"property_package": m.fs.properties})
m.fs.pfr = PFR(
default={
"property_package": m.fs.properties,
"reaction_package": m.fs.reactions,
"has_equilibrium_reactions": False,
"has_heat_transfer": False,
"has_pressure_change": False
})
m.fs.pfr.inlet.flow_vol.fix(1.0)
m.fs.pfr.inlet.conc_mol_comp[0, "H2O"].fix(55388.0)
m.fs.pfr.inlet.conc_mol_comp[0, "NaOH"].fix(100.0)
m.fs.pfr.inlet.conc_mol_comp[0, "EthylAcetate"].fix(100.0)
m.fs.pfr.inlet.conc_mol_comp[0, "SodiumAcetate"].fix(0.0)
m.fs.pfr.inlet.conc_mol_comp[0, "Ethanol"].fix(0.0)
m.fs.pfr.inlet.temperature.fix(303.15)
m.fs.pfr.inlet.pressure.fix(101325.0)
m.fs.pfr.control_volume.length.fix(0.5)
m.fs.pfr.control_volume.area.fix(0.1)
assert degrees_of_freedom(m) == 0
m.fs.pfr.initialize(outlvl=5, optarg={'tol': 1e-6})
assert (pytest.approx(101325.0,
abs=1e-2) == m.fs.pfr.outlet.pressure[0].value)
assert (pytest.approx(303.15,
abs=1e-2) == m.fs.pfr.outlet.temperature[0].value)