def METHOD_NAME():
    # Create a Concrete Model as the top level object
    m = pyo.ConcreteModel()
    # Add a flowsheet object to the model
    m.fs = FlowsheetBlock(dynamic=False)
    # Add property packages to flowsheet library
    m.fs.prop_water = iapws95.Iapws95ParameterBlock()
    m.fs.unit = Drum1D(
        property_package=m.fs.prop_water,
        has_holdup=True,
        has_heat_transfer=True,
        has_pressure_change=True,
        finite_elements=4,
        drum_inner_diameter=1.2,
        drum_thickness=0.119,
    )
    m.fs.unit.drum_length.fix(15.3256)
    m.fs.unit.level[:].fix(0.6)
    m.fs.unit.number_downcomer.fix(6)
    m.fs.unit.downcomer_diameter.fix(0.38)
    m.fs.unit.temperature_ambient[:].fix(298.15)
    m.fs.unit.insulation_thickness.fix(0.145)
    return m