Changes in infiltration profiles and the source of values for infiltration

hub/city_model_structure/building_demand/thermal_archetype.py

@@ -132,3 +132,35 @@ class ThermalArchetype:
     :param value: float
     """
     self._infiltration_rate_for_ventilation_system_on = value
+
+  @property
+  def infiltration_rate_area_for_ventilation_system_off(self):
+    """
+    Get infiltration rate for ventilation system off in l/s/m2
+    :return: float
+    """
+    return self._infiltration_rate_for_ventilation_system_off
+
+  @infiltration_rate_area_for_ventilation_system_off.setter
+  def infiltration_rate_area_for_ventilation_system_off(self, value):
+    """
+    Set infiltration rate for ventilation system off in l/s/m2
+    :param value: float
+    """
+    self._infiltration_rate_for_ventilation_system_off = value
+
+  @property
+  def infiltration_rate_area_for_ventilation_system_on(self):
+    """
+    Get infiltration rate for ventilation system on in l/s/m2
+    :return: float
+    """
+    return self._infiltration_rate_for_ventilation_system_on
+
+  @infiltration_rate_area_for_ventilation_system_on.setter
+  def infiltration_rate_area_for_ventilation_system_on(self, value):
+    """
+    Set infiltration rate for ventilation system on in l/s/m2
+    :param value: float
+    """
+    self._infiltration_rate_for_ventilation_system_on = value

hub/city_model_structure/building_demand/thermal_zone.py

@@ -44,6 +44,8 @@ class ThermalZone:
     self._indirectly_heated_area_ratio = None
     self._infiltration_rate_system_on = None
     self._infiltration_rate_system_off = None
+    self._infiltration_rate_area_system_on = None
+    self._infiltration_rate_area_system_off = None
     self._volume = volume
     self._ordinate_number = None
     self._view_factors_matrix = None
@@ -166,6 +168,24 @@ class ThermalZone:
     self._infiltration_rate_system_off = self._parent_internal_zone.thermal_archetype.infiltration_rate_for_ventilation_system_off
     return self._infiltration_rate_system_off
 
+  @property
+  def infiltration_rate_area_system_on(self):
+    """
+    Get thermal zone infiltration rate system on in air changes per second (1/s)
+    :return: None or float
+    """
+    self._infiltration_rate_area_system_on = self._parent_internal_zone.thermal_archetype.infiltration_rate_area_for_ventilation_system_on
+    return self._infiltration_rate_area_system_on
+
+  @property
+  def infiltration_rate_area_system_off(self):
+    """
+    Get thermal zone infiltration rate system off in air changes per second (1/s)
+    :return: None or float
+    """
+    self._infiltration_rate_area_system_off = self._parent_internal_zone.thermal_archetype.infiltration_rate_area_for_ventilation_system_off
+    return self._infiltration_rate_area_system_off
+
   @property
   def volume(self):
     """

hub/exports/building_energy/idf.py

@@ -392,9 +392,9 @@ class Idf:
     thermostat = self._add_thermostat(thermal_zone)
     self._idf.newidfobject(self._IDEAL_LOAD_AIR_SYSTEM,
                            Zone_Name=zone_name,
-                           System_Availability_Schedule_Name=f'HVAC AVAIL SCHEDULES {thermal_zone.usage_name}',
+                           System_Availability_Schedule_Name=f'Thermostat_availability schedules {thermal_zone.usage_name}',
-                           Heating_Availability_Schedule_Name=f'HVAC AVAIL SCHEDULES {thermal_zone.usage_name}',
+                           Heating_Availability_Schedule_Name=f'Thermostat_availability schedules {thermal_zone.usage_name}',
-                           Cooling_Availability_Schedule_Name=f'HVAC AVAIL SCHEDULES {thermal_zone.usage_name}',
+                           Cooling_Availability_Schedule_Name=f'Thermostat_availability schedules {thermal_zone.usage_name}',
                            Template_Thermostat_Name=thermostat.Name)
 
   def _add_occupancy(self, thermal_zone, zone_name):
@@ -454,7 +454,7 @@ class Idf:
                            )
 
   def _add_infiltration(self, thermal_zone, zone_name):
-    schedule = f'Infiltration schedules {thermal_zone.usage_name}'
+    schedule = f'INF_CONST schedules {thermal_zone.usage_name}'
     _infiltration = thermal_zone.infiltration_rate_system_off * cte.HOUR_TO_SECONDS
     self._idf.newidfobject(self._INFILTRATION,
                            Name=f'{zone_name}_infiltration',
@@ -464,6 +464,17 @@ class Idf:
                            Air_Changes_per_Hour=_infiltration
                            )
 
+  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
+    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
+                           )
+
   def _add_ventilation(self, thermal_zone, zone_name):
     schedule = f'Ventilation schedules {thermal_zone.usage_name}'
     _air_change = thermal_zone.mechanical_air_change * cte.HOUR_TO_SECONDS
@@ -549,9 +560,12 @@ class Idf:
             self._add_schedules(usage, 'DHW_prof', thermal_zone.domestic_hot_water.schedules)
             _new_schedules = self._create_yearly_values_schedules('cold_temp', building.cold_water_temperature[cte.HOUR])
             self._add_schedules(usage, 'cold_temp', _new_schedules)
-
             _new_schedules = self._create_constant_value_schedules('DHW_temp', service_temperature)
             self._add_schedules(usage, 'DHW_temp', _new_schedules)
+            _new_schedules = self._create_constant_value_schedules('INF_CONST', 1)
+            self._add_schedules(usage, 'INF_CONST', _new_schedules)
+            _new_schedules = self._create_constant_value_schedules('Thermostat_availability', 1)
+            self._add_schedules(usage, 'Thermostat_availability', _new_schedules)
             _occ = thermal_zone.occupancy
             if _occ.occupancy_density == 0:
               _total_heat = 0