""" Idf exports one building to idf format SPDX - License - Identifier: LGPL - 3.0 - or -later Copyright © 2022 Concordia CERC group Project Coder Guille Guillermo.GutierrezMorote@concordia.ca Code contributors: Pilar Monsalvete Alvarez de Uribarri pilar.monsalvete@concordia.ca Soroush Samareh Abolhassani soroush.samarehabolhassani@mail.concordia.ca """ import copy import math from pathlib import Path from geomeppy import IDF import helpers.constants as cte from city_model_structure.attributes.schedule import Schedule class Idf: """ Exports city to IDF """ _THERMOSTAT = 'HVACTEMPLATE:THERMOSTAT' _IDEAL_LOAD_AIR_SYSTEM = 'HVACTEMPLATE:ZONE:IDEALLOADSAIRSYSTEM' _SURFACE = 'BUILDINGSURFACE:DETAILED' _CONSTRUCTION = 'CONSTRUCTION' _MATERIAL = 'MATERIAL' _MATERIAL_NOMASS = 'MATERIAL:NOMASS' _ROUGHNESS = 'MediumRough' _HOURLY_SCHEDULE = 'SCHEDULE:DAY:HOURLY' _COMPACT_SCHEDULE = 'SCHEDULE:COMPACT' _FILE_SCHEDULE = 'SCHEDULE:FILE' _ZONE = 'ZONE' _LIGHTS = 'LIGHTS' _PEOPLE = 'PEOPLE' _INFILTRATION = 'ZONEINFILTRATION:DESIGNFLOWRATE' _BUILDING_SURFACE = 'BuildingSurfaceDetailed' _SCHEDULE_LIMIT = 'SCHEDULETYPELIMITS' _ON_OFF = 'On/Off' _FRACTION = 'Fraction' _ANY_NUMBER = 'Any Number' _CONTINUOUS = 'Continuous' _DISCRETE = 'Discrete' _BUILDING = 'BUILDING' _SIZING_PERIODS = 'SIZINGPERIOD:DESIGNDAY' _LOCATION = 'SITE:LOCATION' _WINDOW_MATERIAL_SIMPLE = 'WINDOWMATERIAL:SIMPLEGLAZINGSYSTEM' _WINDOW = 'WINDOW' _ROOFIRRIGATION = 'ROOFIRRIGATION' _MATERIAL_ROOFVEGETATION = 'MATERIAL:ROOFVEGETATION' idf_surfaces = { # todo: make an enum for all the surface types cte.WALL: 'wall', cte.GROUND: 'floor', cte.ROOF: 'roof' } idf_usage = { # todo: make an enum for all the usage types cte.RESIDENTIAL: 'residential_building' } idf_type_limits = { cte.ON_OFF: 'on/off', cte.FRACTION: 'Fraction', cte.ANY_NUMBER: 'Any Number', cte.CONTINUOUS: 'Continuous', cte.DISCRETE: 'Discrete' } idf_day_types = { cte.MONDAY: 'Monday', cte.TUESDAY: 'Tuesday', cte.WEDNESDAY: 'Wednesday', cte.THURSDAY: 'Thursday', cte.FRIDAY: 'Friday', cte.SATURDAY: 'Saturday', cte.SUNDAY: 'Sunday', cte.HOLIDAY: 'Holidays', cte.WINTER_DESIGN_DAY: 'WinterDesignDay', cte.SUMMER_DESIGN_DAY: 'SummerDesignDay' } idf_schedule_types = { 'compact': 'Compact', cte.DAY: 'Day', cte.WEEK: 'Week', cte.YEAR: 'Year', 'file': 'File' } idf_schedule_data_type = { 'compact': 'Compact', 'hourly': 'Hourly', 'daily': 'Daily', 'interval': 'Interval', 'list': 'List', } def __init__(self, city, output_path, idf_file_path, idd_file_path, epw_file_path, export_type="Surfaces"): self._city = city self._output_path = str(output_path.resolve()) self._output_file = str((output_path / f'{city.name}.idf').resolve()) self._export_type = export_type self._idd_file_path = str(idd_file_path) self._idf_file_path = str(idf_file_path) self._epw_file_path = str(epw_file_path) IDF.setiddname(self._idd_file_path) self._idf = IDF(self._idf_file_path, self._epw_file_path) self._idf.newidfobject(self._SCHEDULE_LIMIT, Name=self._ANY_NUMBER) self._idf.newidfobject(self._SCHEDULE_LIMIT, Name=self._FRACTION, Lower_Limit_Value=0.0, Upper_Limit_Value=1.0, Numeric_Type=self._CONTINUOUS) self._idf.newidfobject(self._SCHEDULE_LIMIT, Name=self._ON_OFF, Lower_Limit_Value=0, Upper_Limit_Value=1, Numeric_Type=self._DISCRETE) self._export() @staticmethod def _matrix_to_list(points, lower_corner): lower_x = lower_corner[0] lower_y = lower_corner[1] lower_z = lower_corner[2] points_list = [] for point in points: point_tuple = (point[0]-lower_x, point[1]-lower_y, point[2]-lower_z) points_list.append(point_tuple) return points_list @staticmethod def _matrix_to_2d_list(points): points_list = [] for point in points: point_tuple = (point[0], point[1]) points_list.append(point_tuple) return points_list def _add_material(self, layer): for material in self._idf.idfobjects[self._MATERIAL]: if material.Name == layer.material.name: return for material in self._idf.idfobjects[self._MATERIAL_NOMASS]: if material.Name == layer.material.name: return if layer.material.no_mass: self._idf.newidfobject(self._MATERIAL_NOMASS, Name=layer.material.name, Roughness=self._ROUGHNESS, Thermal_Resistance=layer.material.thermal_resistance, Thermal_Absorptance=layer.material.thermal_absorptance, Solar_Absorptance=layer.material.solar_absorptance, Visible_Absorptance=layer.material.visible_absorptance ) else: self._idf.newidfobject(self._MATERIAL, Name=layer.material.name, Roughness=self._ROUGHNESS, Thickness=layer.thickness, Conductivity=layer.material.conductivity, Density=layer.material.density, Specific_Heat=layer.material.specific_heat, Thermal_Absorptance=layer.material.thermal_absorptance, Solar_Absorptance=layer.material.solar_absorptance, Visible_Absorptance=layer.material.visible_absorptance ) def _add_standard_compact_hourly_schedule(self, usage, schedules): _kwargs = {'Name': f'{schedules[0].type} schedules {usage}', 'Schedule_Type_Limits_Name': self.idf_type_limits[schedules[0].data_type], 'Field_1': 'Through: 12/31'} for j, schedule in enumerate(schedules): _val = schedule.values _new_field = '' for day_type in schedule.day_types: _new_field += f' {self.idf_day_types[day_type]}' _kwargs[f'Field_{j * 25 + 2}'] = f'For:{_new_field}' for i in range(0, len(_val)): _kwargs[f'Field_{j * 25 + 3 + i}'] = f'Until: {i + 1:02d}:00,{_val[i]}' self._idf.newidfobject(self._COMPACT_SCHEDULE, **_kwargs) def _write_schedules_file(self, usage, schedule): file_name = str((Path(self._output_path) / f'{schedule.type} schedules {usage}.dat').resolve()) with open(file_name, 'w') as file: for value in schedule.values: file.write(f'{str(value)},\n') return file_name def _add_file_schedule(self, usage, schedule, file_name): _schedule = self._idf.newidfobject(self._FILE_SCHEDULE, Name=f'{schedule.type} schedules {usage}') _schedule.Schedule_Type_Limits_Name = self.idf_type_limits[schedule.data_type] _schedule.File_Name = file_name _schedule.Column_Number = 1 _schedule.Rows_to_Skip_at_Top = 0 _schedule.Number_of_Hours_of_Data = 8760 _schedule.Column_Separator = 'Comma' _schedule.Interpolate_to_Timestep = 'No' _schedule.Minutes_per_Item = 60 def _add_infiltration_schedules(self, thermal_zone): _infiltration_schedules = [] for hvac_availability_schedule in thermal_zone.thermal_control.hvac_availability_schedules: _schedule = Schedule() _schedule.type = cte.INFILTRATION _schedule.data_type = cte.FRACTION _schedule.time_step = cte.HOUR _schedule.time_range = cte.DAY _schedule.day_types = copy.deepcopy(hvac_availability_schedule.day_types) _infiltration_values = [] for hvac_value in hvac_availability_schedule.values: if hvac_value == 0: _infiltration_values.append(thermal_zone.infiltration_rate_system_off) else: _infiltration_values.append(thermal_zone.infiltration_rate_system_on) _schedule.values = _infiltration_values _infiltration_schedules.append(_schedule) for schedule in self._idf.idfobjects[self._HOURLY_SCHEDULE]: if schedule.Name == f'{_infiltration_schedules[0].type} schedules {thermal_zone.usage}': return return self._add_standard_compact_hourly_schedule(thermal_zone.usage, _infiltration_schedules) def _add_schedules(self, usage, new_schedules, schedule_from_file=False): if schedule_from_file: new_schedule = new_schedules[0] for schedule in self._idf.idfobjects[self._FILE_SCHEDULE]: if schedule.Name == f'{new_schedule.type} schedules {usage}': return file_name = self._write_schedules_file(usage, new_schedule) return self._add_file_schedule(usage, new_schedule, file_name) else: for schedule in self._idf.idfobjects[self._HOURLY_SCHEDULE]: if schedule.Name == f'{new_schedules[0].type} schedules {usage}': return return self._add_standard_compact_hourly_schedule(usage, new_schedules) def _add_construction(self, thermal_boundary): for construction in self._idf.idfobjects[self._CONSTRUCTION]: if construction.Name == thermal_boundary.construction_name: return if thermal_boundary.layers is None: for material in self._idf.idfobjects[self._MATERIAL]: if material.Name == "DefaultMaterial": return self._idf.set_default_constructions() return for layer in thermal_boundary.layers: self._add_material(layer) layers = thermal_boundary.layers # The constructions should have at least one layer _kwargs = {'Name': thermal_boundary.construction_name, 'Outside_Layer': layers[0].material.name} for i in range(1, len(layers) - 1): _kwargs[f'Layer_{i + 1}'] = layers[1].material.name self._idf.newidfobject(self._CONSTRUCTION, **_kwargs) def _add_window_construction_and_material(self, thermal_opening): for window_material in self._idf.idfobjects[self._WINDOW_MATERIAL_SIMPLE]: if window_material['UFactor'] == thermal_opening.overall_u_value and \ window_material['Solar_Heat_Gain_Coefficient'] == thermal_opening.g_value: return order = str(len(self._idf.idfobjects[self._WINDOW_MATERIAL_SIMPLE]) + 1) material_name = 'glazing_' + order _kwargs = {'Name': material_name, 'UFactor': thermal_opening.overall_u_value, 'Solar_Heat_Gain_Coefficient': thermal_opening.g_value} self._idf.newidfobject(self._WINDOW_MATERIAL_SIMPLE, **_kwargs) window_construction_name = 'window_construction_' + order _kwargs = {'Name': window_construction_name, 'Outside_Layer': material_name} self._idf.newidfobject(self._CONSTRUCTION, **_kwargs) def _add_zone(self, thermal_zone): for zone in self._idf.idfobjects['ZONE']: if zone.Name == thermal_zone.id: return # todo: what do we need to define a zone in energy plus? self._idf.newidfobject(self._ZONE, Name=thermal_zone.id, Volume=thermal_zone.volume) self._add_heating_system(thermal_zone) def _add_thermostat(self, usage_zone): thermostat_name = f'Thermostat {usage_zone.usage}' for thermostat in self._idf.idfobjects[self._THERMOSTAT]: if thermostat.Name == thermostat_name: return thermostat return self._idf.newidfobject(self._THERMOSTAT, Name=thermostat_name, Constant_Heating_Setpoint=usage_zone.thermal_control.mean_heating_set_point, Constant_Cooling_Setpoint=usage_zone.thermal_control.mean_cooling_set_point) def _add_heating_system(self, thermal_zone): for air_system in self._idf.idfobjects[self._IDEAL_LOAD_AIR_SYSTEM]: if air_system.Zone_Name == thermal_zone.id: return thermostat = self._add_thermostat(thermal_zone) self._idf.newidfobject(self._IDEAL_LOAD_AIR_SYSTEM, Zone_Name=thermal_zone.id, System_Availability_Schedule_Name=f'HVAC AVAIL SCHEDULES {thermal_zone.usage}', Heating_Availability_Schedule_Name=f'HVAC AVAIL SCHEDULES {thermal_zone.usage}', Cooling_Availability_Schedule_Name=f'HVAC AVAIL SCHEDULES {thermal_zone.usage}', Template_Thermostat_Name=thermostat.Name) def _add_occupancy(self, thermal_zone): number_of_people = thermal_zone.occupancy.occupancy_density * thermal_zone.total_floor_area fraction_radiant = thermal_zone.occupancy.sensible_radiative_internal_gain / \ (thermal_zone.occupancy.sensible_radiative_internal_gain + thermal_zone.occupancy.sensible_convective_internal_gain + thermal_zone.occupancy.latent_internal_gain) self._idf.newidfobject(self._PEOPLE, Name=f'{thermal_zone.id}_occupancy', Zone_or_ZoneList_Name=thermal_zone.id, Number_of_People_Schedule_Name=f'Occupancy schedules {thermal_zone.usage}', Number_of_People_Calculation_Method="People", Number_of_People=number_of_people, Fraction_Radiant=fraction_radiant, Activity_Level_Schedule_Name=f'Occupancy schedules {thermal_zone.usage}' ) def _add_infiltration(self, thermal_zone): for zone in self._idf.idfobjects["ZONE"]: if zone.Name == f'{thermal_zone.id}_infiltration': return self._idf.newidfobject(self._INFILTRATION, Name=f'{thermal_zone.id}_infiltration', Zone_or_ZoneList_Name=thermal_zone.id, Schedule_Name=f'Infiltration schedules {thermal_zone.usage}', Design_Flow_Rate_Calculation_Method='AirChanges/Hour', Air_Changes_per_Hour=thermal_zone.mechanical_air_change ) def _rename_building(self, b): for building in self._idf.idfobjects[self._BUILDING]: building.Name = b.name building['Solar_Distribution'] = 'FullExterior' def _remove_sizing_periods(self): while len(self._idf.idfobjects[self._SIZING_PERIODS]) > 0: self._idf.popidfobject(self._SIZING_PERIODS, 0) def _remove_location(self): self._idf.popidfobject(self._LOCATION, 0) def _export(self): """ Export the idf file into the given path export type = "Surfaces|Block" """ self._remove_location() self._remove_sizing_periods() for building in self._city.buildings: self._rename_building(building) for internal_zone in building.internal_zones: for thermal_zone in internal_zone.thermal_zones: for thermal_boundary in thermal_zone.thermal_boundaries: self._add_construction(thermal_boundary) for thermal_opening in thermal_boundary.thermal_openings: self._add_window_construction_and_material(thermal_opening) usage = thermal_zone.usage self._add_infiltration_schedules(thermal_zone) # todo: why is this schedule unused? self._add_schedules(usage, thermal_zone.lighting.schedules) self._add_schedules(usage, thermal_zone.occupancy.occupancy_schedules, schedule_from_file=True) self._add_schedules(usage, thermal_zone.thermal_control.hvac_availability_schedules) self._add_zone(thermal_zone) self._add_heating_system(thermal_zone) self._add_infiltration(thermal_zone) self._add_occupancy(thermal_zone) if self._export_type == "Surfaces": self._add_surfaces(building) else: self._add_block(building) self._idf.newidfobject( "OUTPUT:VARIABLE", Variable_Name="Zone Ideal Loads Supply Air Total Heating Energy", Reporting_Frequency="Hourly", ) self._idf.newidfobject( "OUTPUT:VARIABLE", Variable_Name="Zone Ideal Loads Supply Air Total Cooling Energy", Reporting_Frequency="Hourly", ) self._idf.match() self._idf.intersect_match() self._idf.saveas(str(self._output_file)) return self._idf def run(self): """ Start the energy plus simulation """ self._idf.run(expandobjects=True, readvars=True, output_directory=self._output_path, output_prefix=f'{self._city.name}_') def _add_block(self, building): _points = self._matrix_to_2d_list(building.foot_print.coordinates) self._idf.add_block(name=building.name, coordinates=_points, height=building.max_height, num_stories=int(building.storeys_above_ground)) for surface in self._idf.idfobjects[self._SURFACE]: for thermal_zone in building.thermal_zones: for boundary in thermal_zone.thermal_boundaries: if surface.Type == self.idf_surfaces[boundary.surface.type]: surface.Construction_Name = boundary.construction_name break for usage_zone in thermal_zone.usage_zones: surface.Zone_Name = usage_zone.id break break self._idf.intersect_match() def _add_surfaces(self, building): for internal_zone in building.internal_zones: for thermal_zone in internal_zone.thermal_zones: for boundary in thermal_zone.thermal_boundaries: idf_surface_type = self.idf_surfaces[boundary.parent_surface.type] # todo: thermal boundary vs. surfaces?? surface = self._idf.newidfobject(self._SURFACE, Name=f'{boundary.parent_surface.name}', Surface_Type=idf_surface_type, Zone_Name=thermal_zone.id, Construction_Name=boundary.construction_name) coordinates = self._matrix_to_list(boundary.parent_surface.solid_polygon.coordinates, self._city.lower_corner) surface.setcoords(coordinates) self._add_windows(boundary) def _add_windows(self, boundary): for opening in boundary.thermal_openings: for construction in self._idf.idfobjects[self._CONSTRUCTION]: if construction['Outside_Layer'].split('_')[0] == 'glazing': window_construction = construction if self._compare_window_constructions(window_construction, opening): opening_name = 'window_' + str(len(self._idf.idfobjects[self._WINDOW]) + 1) opening_length = math.sqrt(opening.area) self._idf.newidfobject(self._WINDOW, Name=f'{opening_name}', Construction_Name=window_construction['Name'], Building_Surface_Name=boundary.parent_surface.name, Multiplier='1', Length=opening_length, Height=opening_length) def _compare_window_constructions(self, window_construction, opening): glazing = window_construction['Outside_Layer'] for material in self._idf.idfobjects[self._WINDOW_MATERIAL_SIMPLE]: if material['Name'] == glazing: if material['UFactor'] == opening.overall_u_value and \ material['Solar_Heat_Gain_Coefficient'] == opening.g_value: return True return False def _add_vegetation_material(self, vegetation_layer): for vegetation_material in self._idf.idfobjects[self._MATERIAL_ROOFVEGETATION]: if vegetation_material.Name == vegetation_layer.name: return self._idf.newidfobject(self._MATERIAL_ROOFVEGETATION, Name='', Height_of_Plants='', Leaf_Area_Index='', Leaf_Reflectivity='', Leaf_Emissivity='', Minimum_Stomatal_Resistance='', Soil_Layer_Name='', Roughness=self._ROUGHNESS, Thickness='', Conductivity_of_Dry_Soil='', Density_of_Dry_Soil='', Specific_Heat_of_Dry_Soil='', Thermal_Absorptance='', Solar_Absorptance='', Visible_Absorptance='', Saturation_Volumetric_Moisture_Content_of_the_Soil_Layer='', Residual_Volumetric_Moisture_Content_of_the_Soil_Layer='', Initial_Volumetric_Moisture_Content_of_the_Soil_Layer='', Moisture_Diffusion_Calculation_Method='' )