def test_inerts_dependent_w_multi_phase():
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties = PhysicalParameterTestBlock()
# Change elemental composition to introduce dependency
m.fs.properties.element_comp = {
"c1": {
"H": 0,
"He": 0,
"Li": 3
},
"c2": {
"H": 4,
"He": 5,
"Li": 0
}
}
m.fs.unit = GibbsReactor(default={
"property_package": m.fs.properties,
"inert_species": ["c1"]
})
assert isinstance(m.fs.unit.inert_species_balance, Constraint)
assert len(m.fs.unit.inert_species_balance) == 2
assert m.fs.unit.inert_species_balance[0, "p1", "c1"] != Constraint.Skip
assert m.fs.unit.inert_species_balance[0, "p2", "c1"] != Constraint.Skip
assert isinstance(m.fs.unit.gibbs_minimization, Constraint)
assert len(m.fs.unit.gibbs_minimization) == 2
def test_config():
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties = PhysicalParameterTestBlock()
m.fs.unit = GibbsReactor(default={"property_package": m.fs.properties})
# Check unit config arguments
assert len(m.fs.unit.config) == 9
assert not m.fs.unit.config.dynamic
assert not m.fs.unit.config.has_holdup
assert m.fs.unit.config.energy_balance_type == \
EnergyBalanceType.useDefault
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 m.fs.unit.config.property_package is m.fs.properties
assert m.fs.unit.config.inert_species == []
assert isinstance(m.fs.unit.gibbs_minimization, Constraint)
assert len(m.fs.unit.gibbs_minimization) == 4
assert not hasattr(m.fs.unit, "inert_species_balance")
def methane(self):
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties = MethaneCombustionParameterBlock()
m.fs.unit = GibbsReactor(
default={
"property_package": m.fs.properties,
"has_heat_transfer": True,
"has_pressure_change": True
})
m.fs.unit.inlet.flow_mol[0].fix(230.0)
m.fs.unit.inlet.mole_frac_comp[0, "H2"].fix(0.0435)
m.fs.unit.inlet.mole_frac_comp[0, "N2"].fix(0.6522)
m.fs.unit.inlet.mole_frac_comp[0, "O2"].fix(0.1739)
m.fs.unit.inlet.mole_frac_comp[0, "CO2"].fix(1e-5)
m.fs.unit.inlet.mole_frac_comp[0, "CH4"].fix(0.1304)
m.fs.unit.inlet.mole_frac_comp[0, "CO"].fix(1e-5)
m.fs.unit.inlet.mole_frac_comp[0, "H2O"].fix(1e-5)
m.fs.unit.inlet.mole_frac_comp[0, "NH3"].fix(1e-5)
m.fs.unit.inlet.temperature[0].fix(1500.0)
m.fs.unit.inlet.pressure[0].fix(101325.0)
m.fs.unit.outlet.temperature[0].fix(2844.38)
m.fs.unit.deltaP.fix(0)
return m
def test_inerts_dependent_w_single_phase():
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties = PhysicalParameterTestBlock()
# Set phase list to only have 1 phase
m.fs.properties.phase_list = ["p1"]
# Change elemental composition to introduce dependency
m.fs.properties.element_comp = {
"c1": {
"H": 0,
"He": 0,
"Li": 3
},
"c2": {
"H": 4,
"He": 5,
"Li": 0
}
}
m.fs.unit = GibbsReactor(default={
"property_package": m.fs.properties,
"inert_species": ["c1"]
})
assert isinstance(m.fs.unit.inert_species_balance, Constraint)
assert len(m.fs.unit.inert_species_balance) == 0
assert (0, "p1", "c1") not in m.fs.unit.inert_species_balance
assert isinstance(m.fs.unit.gibbs_minimization, Constraint)
assert len(m.fs.unit.gibbs_minimization) == 1
def test_invalid_inert():
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties = PhysicalParameterTestBlock()
with pytest.raises(ConfigurationError,
match="fs.unit invalid component in inert_species "
"argument. foo is not in the property package "
"component list."):
m.fs.unit = GibbsReactor(default={"property_package": m.fs.properties,
"inert_species": ["foo"]})
def methane(self):
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties = MethaneCombustionParameterBlock()
m.fs.unit = GibbsReactor(
default={
"property_package": m.fs.properties,
"has_heat_transfer": True,
"has_pressure_change": True
})
return m
def test_inerts():
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties = PhysicalParameterTestBlock()
m.fs.unit = GibbsReactor(default={"property_package": m.fs.properties,
"inert_species": ["c1"]})
assert isinstance(m.fs.unit.inert_species_balance, Constraint)
assert len(m.fs.unit.inert_species_balance) == 2
assert m.fs.unit.inert_species_balance[0, "p1", "c1"] != Constraint.Skip
assert m.fs.unit.inert_species_balance[0, "p2", "c1"] != Constraint.Skip
assert isinstance(m.fs.unit.gibbs_minimization, Constraint)
assert len(m.fs.unit.gibbs_minimization) == 2
def test_config():
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties = PhysicalParameterTestBlock()
m.fs.unit = GibbsReactor(default={"property_package": m.fs.properties})
# Check unit config arguments
assert len(m.fs.unit.config) == 8
assert not m.fs.unit.config.dynamic
assert not m.fs.unit.config.has_holdup
assert m.fs.unit.config.energy_balance_type == \
EnergyBalanceType.useDefault
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 m.fs.unit.config.property_package is m.fs.properties
