def btx(self):
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties = BTXParameterBlock(default={"valid_phase": 'Liq'})
m.fs.unit = Product(default={"property_package": m.fs.properties})
return m
def btx(self):
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties = BTXParameterBlock(default={
"valid_phase": ('Liq', 'Vap'),
"activity_coeff_model": "Ideal"
})
m.fs.unit = Flash(default={"property_package": m.fs.properties})
return m
def btx(self):
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties = BTXParameterBlock(default={"valid_phase": 'Liq'})
m.fs.unit = Heater(default={
"property_package": m.fs.properties,
"has_pressure_change": True
})
return m
def trans(self):
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties1 = SaponificationParameterBlock()
m.fs.properties2 = BTXParameterBlock()
m.fs.unit = Translator(
default={"inlet_property_package": m.fs.properties1,
"outlet_property_package": m.fs.properties2})
return m
def btx(self):
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties = BTXParameterBlock(default={"valid_phase": 'Liq'})
m.fs.unit = PressureChanger(
default={
"property_package": m.fs.properties,
"thermodynamic_assumption": ThermodynamicAssumption.isothermal
})
return m
def btx(self):
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.properties = BTXParameterBlock(default={"valid_phase": 'Liq'})
m.fs.unit = HeatExchanger(
default={
"shell": {
"property_package": m.fs.properties
},
"tube": {
"property_package": m.fs.properties
},
"flow_pattern": HeatExchangerFlowPattern.cocurrent
})
return m
def test_build():
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.ideal = BTXParameterBlock()
m.fs.sap = SaponificationParameterBlock()
m.fs.trans = Translator(
default={"inlet_property_package": m.fs.ideal,
"outlet_property_package": m.fs.sap})
assert hasattr(m.fs.trans, "inlet")
assert len(m.fs.trans.inlet.vars) == 4
assert hasattr(m.fs.trans.inlet, "flow_mol")
assert hasattr(m.fs.trans.inlet, "mole_frac")
assert hasattr(m.fs.trans.inlet, "temperature")
assert hasattr(m.fs.trans.inlet, "pressure")
assert hasattr(m.fs.trans, "outlet")
assert len(m.fs.trans.outlet.vars) == 4
assert hasattr(m.fs.trans.outlet, "flow_vol")
assert hasattr(m.fs.trans.outlet, "conc_mol_comp")
assert hasattr(m.fs.trans.outlet, "temperature")
assert hasattr(m.fs.trans.outlet, "pressure")
# See if ipopt is available and set up solver
if SolverFactory('ipopt').available():
solver = SolverFactory('ipopt')
solver.options = {'tol': 1e-6, 'mu_init': 1e-8, 'bound_push': 1e-8}
else:
solver = None
# -----------------------------------------------------------------------------
# Create a flowsheet for test
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
# vapor-liquid (ideal) - FcTP
m.fs.properties_ideal_vl = BTXParameterBlock(
default={
"valid_phase": ('Liq', 'Vap'),
"activity_coeff_model": "Ideal",
"state_vars": "FcTP"
})
m.fs.state_block_ideal_vl = m.fs.properties_ideal_vl.\
state_block_class(default={"parameters": m.fs.properties_ideal_vl,
"defined_state": True})
# liquid only (ideal)
m.fs.properties_ideal_l = BTXParameterBlock(default={
"valid_phase": 'Liq',
"activity_coeff_model": "Ideal",
"state_vars": "FcTP"
})
m.fs.state_block_ideal_l = m.fs.properties_ideal_l.state_block_class(
default={
"parameters": m.fs.properties_ideal_l,
import pytest
from pyomo.environ import ConcreteModel
from idaes.core import FlowsheetBlock
from idaes.property_models.activity_coeff_models.BTX_activity_coeff_VLE \
import BTXParameterBlock
from idaes.core.util.model_statistics import degrees_of_freedom
# -----------------------------------------------------------------------------
# Create a flowsheet for test
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
# vapor-liquid (Wilson)
m.fs.properties_Wilson_vl = BTXParameterBlock(default={
"valid_phase": ('Liq', 'Vap'),
"activity_coeff_model": 'Wilson'
})
m.fs.state_block_Wilson_vl = m.fs.properties_Wilson_vl.state_block_class(
default={
"parameters": m.fs.properties_Wilson_vl,
"defined_state": True
})
# liquid only (Wilson)
m.fs.properties_Wilson_l = BTXParameterBlock(default={
"valid_phase": 'Liq',
"activity_coeff_model": 'Wilson'
})
m.fs.state_block_Wilson_l = m.fs.properties_Wilson_l.state_block_class(
default={
"parameters": m.fs.properties_Wilson_l,