119 lines
6.3 KiB
Python
119 lines
6.3 KiB
Python
"""
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UsBasePhysicParameters, model the us archetypes and material, used by UsNewYorkCityPhysicsParameters and
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UsPhysicsParameters as base class
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SPDX - License - Identifier: LGPL - 3.0 - or -later
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Copyright © 2020 Project Author Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
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"""
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from pathlib import Path
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import xmltodict
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from city_model_structure.layer import Layer
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from city_model_structure.material import Material
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from physics.physics_feeders.helpers.us_to_library_types import UsToLibraryTypes
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class UsBasePhysicsParameters:
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"""
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UsBasePhysicsParameters class
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"""
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def __init__(self, climate_zone, city_objects, function_to_type, base_path):
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self._climate_zone = climate_zone
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self._city_objects = city_objects
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# load US Library
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path = str(Path.cwd() / base_path / 'us_constructions.xml')
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with open(path) as xml:
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self._library = xmltodict.parse(xml.read(), force_list='layer')
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# load US Archetypes
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path = str(Path.cwd() / base_path / 'us_archetypes.xml')
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with open(path) as xml:
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self._archetypes = xmltodict.parse(xml.read(), force_list='layer')
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for city_object in self._city_objects:
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building_type = function_to_type(city_object.function)
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if building_type is None:
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return
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archetype = self._search_archetype(building_type,
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UsToLibraryTypes.yoc_to_standard(city_object.year_of_construction),
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self._climate_zone)
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# ToDo: remove this in the future
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# ToDo: Raise WrongArchetype if not all the surface types are defined for the given city_object
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if archetype is None:
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print(building_type, UsToLibraryTypes.yoc_to_standard(city_object.year_of_construction),
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self._climate_zone)
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raise Exception('Archetype not found for building')
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city_object.average_storey_height = archetype['average_storey_height']['#text']
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city_object.storeys_above_ground = archetype['number_of_storeys']['#text']
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for thermal_zone in city_object.thermal_zones:
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thermal_zone.effective_thermal_capacity = archetype['thermal_capacity']['#text']
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thermal_zone.additional_thermal_bridge_u_value = archetype['extra_loses_due_to_thermal_bridges']['#text']
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thermal_zone.indirectly_heated_area_ratio = archetype['indirect_heated_ratio']['#text']
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thermal_zone.infiltration_rate_system_off = archetype['infiltration_rate_for_ventilation_system_off']['#text']
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thermal_zone.infiltration_rate_system_on = archetype['infiltration_rate_for_ventilation_system_on']['#text']
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for thermal_boundary in thermal_zone.bounded:
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construction_type = UsToLibraryTypes.construction_types[thermal_boundary.type]
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construction = UsBasePhysicsParameters._search_construction_in_archetype(archetype, construction_type)
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construction_id = construction['@id']
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c_lib = self._search_construction_type('construction', construction_id)
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if 'outside_solar_absorptance' in c_lib:
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thermal_boundary.outside_solar_absorptance = c_lib['outside_solar_absorptance']['#text']
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thermal_boundary.outside_thermal_absorptance = c_lib['outside_thermal_absorptance']['#text']
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thermal_boundary.outside_visible_absorptance = c_lib['outside_visible_absorptance']['#text']
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thermal_boundary.window_ratio = construction['window_ratio']['#text']
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thermal_boundary.layers = []
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for current_layer in c_lib['layers']['layer']:
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layer = Layer()
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if 'thickness' in current_layer:
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layer.thickness = current_layer['thickness']['#text']
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material_lib = self._search_construction_type('material', current_layer['material'])
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material = Material()
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if 'conductivity' in material_lib:
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material.conductivity = material_lib['conductivity']['#text']
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material.specific_heat = material_lib['specific_heat']['#text']
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material.density = material_lib['density']['#text']
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material.solar_absorptance = material_lib['solar_absorptance']['#text']
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material.thermal_absorptance = material_lib['thermal_absorptance']['#text']
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material.visible_absorptance = material_lib['visible_absorptance']['#text']
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material.no_mass = 'no_mass' in material_lib
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if 'thermal_resistance' in material_lib:
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material.thermal_resistance = material_lib['thermal_resistance']['#text']
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layer.material = material
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thermal_boundary.layers.append(layer)
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for opening in thermal_boundary.thermal_openings:
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if construction['window'] is None:
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continue
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w_lib = self._search_construction_type('window', construction['window'])
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opening.conductivity = w_lib['conductivity']['#text']
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opening.frame_ratio = w_lib['frame_ratio']['#text']
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opening.g_value = w_lib['solar_transmittance_at_normal_incidence']['#text']
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opening.thickness = w_lib['thickness']['#text']
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opening.back_side_solar_transmittance_at_normal_incidence = \
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w_lib['back_side_solar_transmittance_at_normal_incidence']['#text']
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opening.front_side_solar_transmittance_at_normal_incidence = \
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w_lib['front_side_solar_transmittance_at_normal_incidence']['#text']
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def _search_archetype(self, building_type, standard, climate_zone):
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for archetype in self._archetypes['archetypes']['archetype']:
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a_yc = str(archetype['@reference_standard'])
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a_bt = str(archetype['@building_type'])
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a_cz = str(archetype['@climate_zone'])
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if (a_yc == str(standard)) and (a_bt == str(building_type)) and (a_cz == str(climate_zone)):
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return archetype
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return None
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def _search_construction_type(self, construction_type, construction_id):
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for c_lib in self._library['library'][construction_type + 's'][construction_type]:
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if construction_id == c_lib['@id']:
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return c_lib
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raise Exception('Archetype definition contains elements that does not exist in the library')
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@staticmethod
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def _search_construction_in_archetype(archetype, construction_type):
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for construction in archetype['constructions']['construction']:
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if construction['@type'] == construction_type:
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return construction
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raise Exception('Construction type not found')
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