def test_gas_mixture_dict_methods():
"""Test the to/from dict methods."""
air_xenon = EnergyWindowMaterialGasMixture(
'Air Xenon Gap', 0.0125, ('Air', 'Xenon'), (0.1, 0.9))
material_dict = air_xenon.to_dict()
new_material = EnergyWindowMaterialGasMixture.from_dict(material_dict)
assert material_dict == new_material.to_dict()
def test_gas_mixture_defaults():
"""Test the EnergyWindowMaterialGasMixture default properties."""
air_argon = EnergyWindowMaterialGasMixture('Default Gap')
assert air_argon.thickness == 0.0125
assert air_argon.gas_types == ('Argon', 'Air')
assert air_argon.gas_fractions == (0.9, 0.1)
def test_gas_mixture_init():
"""Test the initialization of a gas mixture."""
air_argon = EnergyWindowMaterialGasMixture(
'Air Argon Gap', 0.0125, ('Air', 'Argon'), (0.1, 0.9))
str(air_argon) # test the string representation of the material
aa_dup = air_argon.duplicate()
assert air_argon.identifier == aa_dup.identifier == 'Air Argon Gap'
assert air_argon.thickness == aa_dup.thickness == 0.0125
assert air_argon.gas_types == aa_dup.gas_types == ('Air', 'Argon')
assert air_argon.gas_fractions == aa_dup.gas_fractions == (0.1, 0.9)
assert air_argon.conductivity == aa_dup.conductivity == pytest.approx(0.0171, rel=1e-2)
assert air_argon.viscosity == aa_dup.viscosity == pytest.approx(1.953e-05, rel=1e-2)
assert air_argon.specific_heat == aa_dup.specific_heat == pytest.approx(570.346, rel=1e-2)
assert air_argon.density == aa_dup.density == pytest.approx(1.733399, rel=1e-2)
assert air_argon.prandtl == aa_dup.prandtl == pytest.approx(0.65057, rel=1e-2)
def test_gas_mixture_properties_at_temperature():
"""Test the initalization of gas material objects and basic properties."""
air_argon = EnergyWindowMaterialGasMixture(
'Air Argon Gap', 0.0125, ('Air', 'Argon'), (0.1, 0.9))
assert air_argon.conductivity_at_temperature(223) == pytest.approx(0.0144, rel=1e-2)
assert air_argon.viscosity_at_temperature(223) == pytest.approx(1.6571e-05, rel=1e-2)
assert air_argon.specific_heat_at_temperature(223) == pytest.approx(570.284, rel=1e-2)
assert air_argon.density_at_temperature(223) == pytest.approx(2.12321, rel=1e-2)
assert air_argon.prandtl_at_temperature(223) == pytest.approx(0.6558, rel=1e-2)
def test_window_construction_init_gas_mixture():
"""Test the initalization of WindowConstruction objects with a gas mixture."""
lowe_glass = EnergyWindowMaterialGlazing('Low-e Glass', 0.00318, 0.4517,
0.359, 0.714, 0.207, 0, 0.84,
0.046578, 1.0)
clear_glass = EnergyWindowMaterialGlazing('Clear Glass', 0.005715,
0.770675, 0.07, 0.8836, 0.0804,
0, 0.84, 0.84, 1.0)
air_argon = EnergyWindowMaterialGasMixture('Air Argon Gap', 0.0125,
('Air', 'Argon'), (0.1, 0.9))
double_low_e_argon = WindowConstruction(
'Double Low-E with Argon', [lowe_glass, air_argon, clear_glass])
assert double_low_e_argon.u_factor == pytest.approx(1.46319708, rel=1e-2)
def test_gas_mixture_init_from_idf():
"""Test the initialization of gas mixture objects from strings."""
ep_str_1 = "WindowMaterial:GasMixture,\n" \
"Argon Mixture, !- Name\n" \
"0.01, !- Thickness {m}\n" \
"2, !- Number of Gases\n" \
"Argon, !- Gas 1 Type\n" \
"0.8, !- Gas 1 Fraction\n" \
"Air, !- Gas 2 Type\n" \
"0.2; !- Gas 2 Fraction"
gas_mix = EnergyWindowMaterialGasMixture.from_idf(ep_str_1)
assert gas_mix.identifier == 'Argon Mixture'
assert gas_mix.thickness == 0.01
assert gas_mix.gas_types == ('Argon', 'Air')
assert gas_mix.gas_fractions == (0.8, 0.2)
def test_gas_mixture_invalid():
"""Test EnergyWindowMaterialGlazing objects with invalid properties."""
air_argon = EnergyWindowMaterialGasMixture(
'Air Argon Gap', 0.0125, ('Air', 'Argon'), (0.1, 0.9))
with pytest.raises(TypeError):
air_argon.identifier = ['test_identifier']
with pytest.raises(AssertionError):
air_argon.thickness = -1
with pytest.raises(AssertionError):
air_argon.gas_types = ('Helium', 'Nitrogen')
with pytest.raises(AssertionError):
air_argon.gas_fractions = (0.5, 0.7)
try: # import the honeybee-energy dependencies
from honeybee_energy.material.gas import EnergyWindowMaterialGas, \
EnergyWindowMaterialGasMixture
except ImportError as e:
raise ImportError('\nFailed to import honeybee_energy:\n\t{}'.format(e))
try: # import ladybug_rhino dependencies
from ladybug_rhino.grasshopper import all_required_inputs
except ImportError as e:
raise ImportError('\nFailed to import ladybug_rhino:\n\t{}'.format(e))
if all_required_inputs(ghenv.Component):
# set the default material properties
_thickness_ = 0.0125 if _thickness_ is None else _thickness_
_gas_types_ = ['Air'] if len(_gas_types_) == 0 else _gas_types_
_gas_ratios_ = [1 / len(_gas_types_)] * len(_gas_types_) if \
len(_gas_ratios_) == 0 else _gas_ratios_
assert len(_gas_types_) == len(_gas_ratios_), \
'Length of _gas_types_ does not equal length of _gas_ratios_.'
# create the material
if len(_gas_types_) == 1:
mat = EnergyWindowMaterialGas(
clean_and_id_ep_string(_name), _thickness_, _gas_types_[0])
else:
mat = EnergyWindowMaterialGasMixture(
clean_and_id_ep_string(_name), _thickness_, _gas_types_, _gas_ratios_)
mat.display_name = _name
def material_window_gas_mixture(directory):
argon_mix = EnergyWindowMaterialGasMixture('Argon Air Mixture', 0.0125,
['Argon', 'Air'], [0.9, 0.1])
dest_file = os.path.join(directory, 'material_window_gas_mixture.json')
with open(dest_file, 'w') as fp:
json.dump(argon_mix.to_dict(), fp, indent=4)
try: # import the honeybee-energy dependencies
from honeybee_energy.material.gas import EnergyWindowMaterialGas, \
EnergyWindowMaterialGasMixture
except ImportError as e:
raise ImportError('\nFailed to import honeybee_energy:\n\t{}'.format(e))
try: # import ladybug_rhino dependencies
from ladybug_rhino.grasshopper import all_required_inputs
except ImportError as e:
raise ImportError('\nFailed to import ladybug_rhino:\n\t{}'.format(e))
if all_required_inputs(ghenv.Component):
# set the default material properties
_thickness_ = 0.0125 if _thickness_ is None else _thickness_
_gas_types_ = ['Air'] if len(_gas_types_) == 0 else _gas_types_
_gas_ratios_ = [1 / len(_gas_types_)] * len(_gas_types_) if \
len(_gas_ratios_) == 0 else _gas_ratios_
assert len(_gas_types_) == len(_gas_ratios_), \
'Length of _gas_types_ does not equal length of _gas_ratios_.'
name = clean_and_id_ep_string('GapMaterial') if _name_ is None else \
clean_ep_string(_name_)
# create the material
if len(_gas_types_) == 1:
mat = EnergyWindowMaterialGas(name, _thickness_, _gas_types_[0])
else:
mat = EnergyWindowMaterialGasMixture(name, _thickness_, _gas_types_,
_gas_ratios_)
if _name_ is not None:
mat.display_name = _name_