clear_3 = pywincalc.parse_optics_file(clear_3_path) clear_6_path = "products/CLEAR_6.DAT" clear_6 = pywincalc.parse_optics_file(clear_6_path) # Create a list of solid layers in order from outside to inside # This is a triple glazing where the outside and inside are the glass # that was just loaded and the middle is the same glass as the single clear example above solid_layers = [clear_6, clear_3, clear_6] # Solid layers must be separated by gap layers # Currently there are four pre-defined gases available: Air, Argon, Krypton, and Xenon # Vacuum gaps are not yet supported # To create a gap with 100% of a predefined gas create a Gap_Data object with the gas type # and thickness in meters gap_1 = pywincalc.Gap(pywincalc.PredefinedGasType.AIR, .0127) # .0127 is gap thickness in meters # To create a mixture of predefined gases first create the components with the gas type and portion of the mixture # The following creates a gas that is 70% Krypton and 30% Xenon and 2cm thick gap_2_component_1 = pywincalc.PredefinedGasMixtureComponent(pywincalc.PredefinedGasType.KRYPTON, .7) gap_2_component_2 = pywincalc.PredefinedGasMixtureComponent(pywincalc.PredefinedGasType.XENON, .3) gap_2 = pywincalc.Gap([gap_2_component_1, gap_2_component_2], .02) # .02 is gap thickness in meters # Put all gaps into a list ordered from outside to inside # Note: This is only specifying gaps between solid layers # Gases on the interior and exterior of the glazing system are more fixed and only subject to # change based on the properties in the environmental conditions gaps = [gap_1, gap_2] # Create a glazing system using the NFRC U environment in order to get NFRC U results # U and SHGC can be caculated for any given environment but in order to get results
from igsdb_interaction import url_single_product, headers, url_single_product_datafile
import results_printer
# Path to the optical standard file. All other files referenced by the standard file must be in the same directory
# Note: While all optical standards packaged with WINDOW should work with optical calculations care should be
# taken to use NFRC standards if NFRC thermal results are desired. This is because for thermal calculations currently
# only ISO 15099 is supported. While it is possible to use EN optical standards and create thermal results
# those results will not be based on EN 673
optical_standard_path = "standards/W5_NFRC_2003.std"
optical_standard = pywincalc.load_standard(optical_standard_path)
glazing_system_width = 1.0 # width of the glazing system in meters
glazing_system_height = 1.0 # height of the glazing system in meters
# Define the gap between the shade and the glazing
gap_1 = pywincalc.Gap(pywincalc.PredefinedGasType.AIR,
.0127) # .0127 is gap thickness in meters
# Since these products use at least one layer that requires a BSDF model a BSDF hemisphere must be
# used. In this example a standard quarter basis is used. Other predefined basis include Small, Half, and Full
# Custom BSDF basis is not yet supported in Python. Please contact us if your work requires calculations with
# a custom BSDF basis.
bsdf_hemisphere = pywincalc.BSDFHemisphere.create(
pywincalc.BSDFBasisType.QUARTER)
# Download some product data from the IGSDB. This example gets a generic single clear 3mm glazing (NFRC 102),
# a venetian blind manufactured by Pella (CGDB ID 3000) and a perforated screen manufacturerd by Solar Comfort
# (CGDB ID 18000)
generic_clear_3mm_glass_igsdb_id = 363
slim_white_pella_venetian_blind_igsdb_id = 14684
generic_clear_3mm_glass_igsdb_response = requests.get(
import pywincalc
import results_printer
# Currently there are four pre-defined gases available: Air, Argon, Krypton, and Xenon
# Vacuum gaps are not yet supported
# To create a gap with 100% of a predefined gas create a Gap_Data object with the gas type
# and thickness in meters
gap_1 = pywincalc.Gap(pywincalc.PredefinedGasType.AIR, .0127) # .0127 is gap thickness in meters
# Gaps may also contain a mixture of gases. # To create a mixture of predefined gases first create the
# components with the gas type and portion of the mixture.
# The following creates a gas that is 70% Krypton and 30% Xenon and 2cm thick
gap_2_component_1 = pywincalc.PredefinedGasMixtureComponent(pywincalc.PredefinedGasType.KRYPTON, .7)
gap_2_component_2 = pywincalc.PredefinedGasMixtureComponent(pywincalc.PredefinedGasType.XENON, .3)
gap_2 = pywincalc.Gap([gap_2_component_1, gap_2_component_2], .02) # .02 is gap thickness in meters
# Custom gases can be created from properties. The following creates sulfur hexafluoride as distributed with WINDOW 7
sulfur_hexafluoride_conductivity_a = 0.0130000002682209
sulfur_hexafluoride_conductivity_b = 0
sulfur_hexafluoride_conductivity_c = 0
sulfur_hexafluoride_conductivity_coefficients = pywincalc.GasCoefficients(sulfur_hexafluoride_conductivity_a,
sulfur_hexafluoride_conductivity_b,
sulfur_hexafluoride_conductivity_c)
sulfur_hexafluoride_viscosity_a = 7.21399999292771E-7
sulfur_hexafluoride_viscosity_b = 4.92800005247318E-8
sulfur_hexafluoride_viscosity_c = 0
sulfur_hexafluoride_viscosity_coefficients = pywincalc.GasCoefficients(sulfur_hexafluoride_viscosity_a,
sulfur_hexafluoride_viscosity_b,
sulfur_hexafluoride_viscosity_c)
sulfur_hexafluoride_Cp_a = 418.600006103516
sulfur_hexafluoride_Cp_b = 0
