Changing the full structure to incorporate a second way of entering infiltration (infiltration per outdoor area)

hub/catalog_factories/construction/nrcan_catalog.py

@@ -128,6 +128,12 @@ class NrcanCatalog(Catalog):
       infiltration_rate_for_ventilation_system_on = (
         archetype['infiltration_rate_for_ventilation_system_on'] / cte.HOUR_TO_SECONDS
       )
+      infiltration_rate_area_for_ventilation_system_off = (
+              archetype['infiltration_rate_area_for_ventilation_system_off'] * 1
+      )
+      infiltration_rate_area_for_ventilation_system_on = (
+              archetype['infiltration_rate_area_for_ventilation_system_on'] * 1
+      )
 
       archetype_constructions = []
       for archetype_construction in archetype['constructions']:
@@ -153,7 +159,6 @@ class NrcanCatalog(Catalog):
                                          _window)
             archetype_constructions.append(_construction)
             break
-
       _catalog_archetypes.append(Archetype(archetype_id,
                                            name,
                                            function,
@@ -165,7 +170,10 @@ class NrcanCatalog(Catalog):
                                            extra_loses_due_to_thermal_bridges,
                                            None,
                                            infiltration_rate_for_ventilation_system_off,
-                                           infiltration_rate_for_ventilation_system_on))
+                                           infiltration_rate_for_ventilation_system_on,
+                                           infiltration_rate_area_for_ventilation_system_off,
+                                           infiltration_rate_area_for_ventilation_system_on
+                                           ))
     return _catalog_archetypes
 
   def names(self, category=None):

hub/catalog_factories/data_models/construction/archetype.py

@@ -23,7 +23,10 @@ class Archetype:
                extra_loses_due_to_thermal_bridges,
                indirect_heated_ratio,
                infiltration_rate_for_ventilation_system_off,
-               infiltration_rate_for_ventilation_system_on):
+               infiltration_rate_for_ventilation_system_on,
+               infiltration_rate_area_for_ventilation_system_off,
+               infiltration_rate_area_for_ventilation_system_on
+               ):
     self._id = archetype_id
     self._name = name
     self._function = function
@@ -36,6 +39,8 @@ class Archetype:
     self._indirect_heated_ratio = indirect_heated_ratio
     self._infiltration_rate_for_ventilation_system_off = infiltration_rate_for_ventilation_system_off
     self._infiltration_rate_for_ventilation_system_on = infiltration_rate_for_ventilation_system_on
+    self._infiltration_rate_area_for_ventilation_system_off = infiltration_rate_area_for_ventilation_system_off
+    self._infiltration_rate_area_for_ventilation_system_on = infiltration_rate_area_for_ventilation_system_on
 
   @property
   def id(self):
@@ -133,6 +138,22 @@ class Archetype:
     """
     return self._infiltration_rate_for_ventilation_system_on
 
+  @property
+  def infiltration_rate_area_for_ventilation_system_off(self):
+    """
+    Get archetype infiltration rate for ventilation system off in m3/sm2
+    :return: float
+    """
+    return self._infiltration_rate_area_for_ventilation_system_off
+
+  @property
+  def infiltration_rate_area_for_ventilation_system_on(self):
+    """
+    Get archetype infiltration rate for ventilation system on in m3/sm2
+    :return: float
+    """
+    return self._infiltration_rate_for_ventilation_system_on
+
   def to_dictionary(self):
     """Class content to dictionary"""
     _constructions = []
@@ -149,6 +170,8 @@ class Archetype:
                              'indirect heated ratio': self.indirect_heated_ratio,
                              'infiltration rate for ventilation off [1/s]': self.infiltration_rate_for_ventilation_system_off,
                              'infiltration rate for ventilation on [1/s]': self.infiltration_rate_for_ventilation_system_on,
+                             'infiltration rate area for ventilation off [m3/sm2]': self.infiltration_rate_area_for_ventilation_system_off,
+                             'infiltration rate area for ventilation on [m3/sm2]': self.infiltration_rate_area_for_ventilation_system_on,
                              'constructions': _constructions
                              }
                }

hub/city_model_structure/building_demand/thermal_archetype.py

@@ -20,6 +20,8 @@ class ThermalArchetype:
     self._indirect_heated_ratio = None
     self._infiltration_rate_for_ventilation_system_off = None
     self._infiltration_rate_for_ventilation_system_on = None
+    self._infiltration_rate_area_for_ventilation_system_off=None
+    self._infiltration_rate_area_for_ventilation_system_on=None
 
   @property
   def constructions(self) -> [Construction]:

hub/exports/building_energy/idf.py

@@ -466,13 +466,13 @@ class Idf:
 
   def _add_infiltration_surface(self, thermal_zone, zone_name):
     schedule = f'INF_CONST schedules {thermal_zone.usage_name}'
-    _infiltration = thermal_zone.infiltration_rate_area_system_off*2
+    _infiltration = thermal_zone.infiltration_rate_area_system_off*1
     self._idf.newidfobject(self._INFILTRATION,
                            Name=f'{zone_name}_infiltration',
                            Zone_or_ZoneList_or_Space_or_SpaceList_Name=zone_name,
                            Schedule_Name=schedule,
                            Design_Flow_Rate_Calculation_Method='Flow/ExteriorWallArea',
-                           Air_Changes_per_Hour=_infiltration
+                           Flow_Rate_per_Exterior_Surface_Area=_infiltration
                            )
 
   def _add_ventilation(self, thermal_zone, zone_name):

hub/helpers/constants.py

@@ -25,6 +25,7 @@ KILO_WATTS_HOUR_TO_JULES = 3600000
 WATTS_HOUR_TO_JULES = 3600
 GALLONS_TO_QUBIC_METERS = 0.0037854117954011185
 
+
 # time
 SECOND = 'second'
 MINUTE = 'minute'

hub/imports/construction/nrcan_physics_parameters.py

@@ -67,6 +67,8 @@ class NrcanPhysicsParameters:
     thermal_archetype.indirect_heated_ratio = 0
     thermal_archetype.infiltration_rate_for_ventilation_system_on = catalog_archetype.infiltration_rate_for_ventilation_system_on
     thermal_archetype.infiltration_rate_for_ventilation_system_off = catalog_archetype.infiltration_rate_for_ventilation_system_off
+    thermal_archetype.infiltration_rate_area_for_ventilation_system_on = catalog_archetype.infiltration_rate_area_for_ventilation_system_on
+    thermal_archetype.infiltration_rate_area_for_ventilation_system_off = catalog_archetype.infiltration_rate_area_for_ventilation_system_off
     _constructions = []
     for catalog_construction in catalog_archetype.constructions:
       construction = Construction()