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Merge pull request 'meb_debugging' (#11) from meb_debugging into main

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Reviewed-on: https://nextgenerations-cities.encs.concordia.ca/gitea/CERC/hub/pulls/11
This commit is contained in:
Guille Gutierrez 2023-03-22 10:37:44 -04:00
commit a3bbe76147
6 changed files with 76 additions and 44 deletions
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2
hub/catalog_factories/construction/nrcan_catalog.py
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@ -116,7 +116,7 @@ class NrcanCatalog(Catalog):
climate_zone = archetype['climate_zone']
construction_period = archetype['period_of_construction']
average_storey_height = archetype['average_storey_height']
thermal_capacity = str(float(archetype['thermal_capacity']) * 1000)
thermal_capacity = float(archetype['thermal_capacity']) * 1000
extra_loses_due_to_thermal_bridges = archetype['extra_loses_due_thermal_bridges']
infiltration_rate_for_ventilation_system_off = archetype['infiltration_rate_for_ventilation_system_off']
infiltration_rate_for_ventilation_system_on = archetype['infiltration_rate_for_ventilation_system_on']

47
hub/catalog_factories/usage/nrcan_catalog.py
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@ -53,7 +53,7 @@ class NrcanCatalog(Catalog):
def _load_schedules(self):
usage = self._metadata['nrcan']
url = f'{self._base_url}{usage["schedules_location"]}'
url = f'{self._base_url}{usage["schedules"]}'
_schedule_types = []
with urllib.request.urlopen(url) as json_file:
schedules_type = json.load(json_file)
@ -76,12 +76,40 @@ class NrcanCatalog(Catalog):
def _load_archetypes(self):
usages = []
name = self._metadata['nrcan']
url = f'{self._base_url}{name["space_types_location"]}'
with urllib.request.urlopen(url) as json_file:
url_1 = f'{self._base_url}{name["space_types"]}'
url_2 = f'{self._base_url}{name["space_types_compliance"]}'
with urllib.request.urlopen(url_1) as json_file:
space_types = json.load(json_file)['tables']['space_types']['table']
space_types = [st for st in space_types if st['space_type'] == 'WholeBuilding']
with urllib.request.urlopen(url_2) as json_file:
space_types_compliance = json.load(json_file)['tables']['space_compliance']['table']
space_types_compliance = [st for st in space_types_compliance if st['space_type'] == 'WholeBuilding']
space_types_dictionary = {}
for space_type in space_types_compliance:
usage_type = space_type['building_type']
# people/m2
occupancy_density = space_type['occupancy_per_area_people_per_m2']
# W/m2
lighting_density = space_type['lighting_per_area_w_per_m2']
# W/m2
appliances_density = space_type['electric_equipment_per_area_w_per_m2']
# peak flow in gallons/h/m2
domestic_hot_water_peak_flow = space_type['service_water_heating_peak_flow_per_area'] \
* cte.GALLONS_TO_QUBIC_METERS / cte.HOUR_TO_SECONDS
space_types_dictionary[usage_type] = {'occupancy_per_area': occupancy_density,
'lighting_per_area': lighting_density,
'electric_equipment_per_area': appliances_density,
'service_water_heating_peak_flow_per_area': domestic_hot_water_peak_flow
}
for space_type in space_types:
usage_type = space_type['building_type']
space_type_compliance = space_types_dictionary[usage_type]
occupancy_density = space_type_compliance['occupancy_per_area']
lighting_density = space_type_compliance['lighting_per_area']
appliances_density = space_type_compliance['electric_equipment_per_area']
domestic_hot_water_peak_flow = space_type_compliance['service_water_heating_peak_flow_per_area']
occupancy_schedule_name = space_type['occupancy_schedule']
lighting_schedule_name = space_type['lighting_schedule']
appliance_schedule_name = space_type['electric_equipment_schedule']
@ -99,35 +127,26 @@ class NrcanCatalog(Catalog):
hvac_availability = self._get_schedules(hvac_schedule_name)
domestic_hot_water_load_schedule = self._get_schedules(domestic_hot_water_schedule_name)
occupancy_density = space_type['occupancy_per_area']
# ACH
mechanical_air_change = space_type['ventilation_air_changes']
# cfm/ft2 to m3/m2.s
ventilation_rate = space_type['ventilation_per_area'] / (cte.METERS_TO_FEET * cte.MINUTES_TO_SECONDS)
if ventilation_rate == 0:
# cfm/person to m3/m2.s
ventilation_rate = space_type['ventilation_per_person'] / occupancy_density\
/ (cte.METERS_TO_FEET * cte.MINUTES_TO_SECONDS)
ventilation_rate = space_type['ventilation_per_person'] / (cte.METERS_TO_FEET * cte.MINUTES_TO_SECONDS)\
/ occupancy_density
# W/sqft to W/m2
lighting_density = space_type['lighting_per_area'] * cte.METERS_TO_FEET * cte.METERS_TO_FEET
lighting_radiative_fraction = space_type['lighting_fraction_radiant']
lighting_convective_fraction = 0
if lighting_radiative_fraction is not None:
lighting_convective_fraction = 1 - lighting_radiative_fraction
lighting_latent_fraction = 0
# W/sqft to W/m2
appliances_density = space_type['electric_equipment_per_area'] * cte.METERS_TO_FEET * cte.METERS_TO_FEET
appliances_radiative_fraction = space_type['electric_equipment_fraction_radiant']
appliances_latent_fraction = space_type['electric_equipment_fraction_latent']
appliances_convective_fraction = 0
if appliances_radiative_fraction is not None and appliances_latent_fraction is not None:
appliances_convective_fraction = 1 - appliances_radiative_fraction - appliances_latent_fraction
# peak flow in gallons/h/ft2
domestic_hot_water_peak_flow = space_type['service_water_heating_peak_flow_per_area'] \
* cte.GALLONS_TO_QUBIC_METERS / cte.HOUR_TO_SECONDS * pow(cte.METERS_TO_FEET, 2)
domestic_hot_water_service_temperature = space_type['service_water_heating_target_temperature']
occupancy = Occupancy(occupancy_density,

5
hub/data/usage/nrcan.xml
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@ -1,5 +1,6 @@
<?xml version="1.0" encoding="UTF-8" ?>
<nrcan base_url="https://raw.githubusercontent.com/NREL/openstudio-standards/master/lib/openstudio-standards/standards/necb/">
<space_types_location>NECB2020/data/space_types.json</space_types_location>
<schedules_location>NECB2015/data/schedules.json</schedules_location>
<space_types>NECB2015/data/space_types.json</space_types>
<space_types_compliance>NECB2015/qaqc/qaqc_data/space_compliance_2015.json</space_types_compliance>>
<schedules>NECB2015/data/schedules.json</schedules>
</nrcan>

26
hub/exports/building_energy/insel/insel_monthly_energy_balance.py
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@ -70,10 +70,11 @@ class InselMonthlyEnergyBalance(Insel):
for i in range(1, len(surfaces) + 1):
inputs.append(f"{str(100 + i)}.1 % Radiation surface {str(i)}")
number_of_storeys = int(building.eave_height / building.average_storey_height)
# BUILDING PARAMETERS
parameters = [f'{0.85 * building.volume} % BP(1) Heated Volume (m3)',
parameters = [f'{building.volume} % BP(1) Heated Volume (m3)',
f'{building.average_storey_height} % BP(2) Average storey height (m)',
f'{building.storeys_above_ground} % BP(3) Number of storeys above ground',
f'{number_of_storeys} % BP(3) Number of storeys above ground',
f'{building.attic_heated} % BP(4) Attic heating type (0=no room, 1=unheated, 2=heated)',
f'{building.basement_heated} % BP(5) Cellar heating type (0=no room, 1=unheated, 2=heated, '
f'99=invalid)']
@ -93,11 +94,11 @@ class InselMonthlyEnergyBalance(Insel):
for i, usage in enumerate(internal_zone.usages):
percentage_usage = usage.percentage
parameters.append(f'{float(internal_zone.area) * percentage_usage} % BP(11) #1 Area of zone {i + 1} (m2)')
parameters.append(f'{internal_zone.thermal_zones[0].total_floor_area * percentage_usage} '
f'% BP(11) #1 Area of zone {i + 1} (m2)')
total_internal_gain = 0
for ig in usage.internal_gains:
total_internal_gain += float(ig.average_internal_gain) * \
(float(ig.convective_fraction) + float(ig.radiative_fraction))
total_internal_gain += ig.average_internal_gain * (ig.convective_fraction + ig.radiative_fraction)
parameters.append(f'{total_internal_gain} % BP(12) #2 Internal gains of zone {i + 1}')
parameters.append(f'{usage.thermal_control.mean_heating_set_point} % BP(13) #3 Heating setpoint temperature '
f'zone {i + 1} (degree Celsius)')
@ -107,7 +108,9 @@ class InselMonthlyEnergyBalance(Insel):
f'zone {i + 1} (degree Celsius)')
parameters.append(f'{usage.hours_day} % BP(16) #6 Usage hours per day zone {i + 1}')
parameters.append(f'{usage.days_year} % BP(17) #7 Usage days per year zone {i + 1}')
parameters.append(f'{usage.mechanical_air_change} % BP(18) #8 Minimum air change rate zone {i + 1} (ACH)')
ventilation_infiltration = usage.mechanical_air_change + internal_zone.thermal_zones[0].infiltration_rate_system_off
parameters.append(f'{ventilation_infiltration} % BP(18) #8 Minimum air change rate zone {i + 1} (ACH)')
parameters.append(f'{len(thermal_zone.thermal_boundaries)} % Number of surfaces = BP(11+8z) \n'
f'% 1. Surface type (1=wall, 2=ground 3=roof, 4=flat roof)\n'
@ -123,17 +126,18 @@ class InselMonthlyEnergyBalance(Insel):
for thermal_boundary in thermal_zone.thermal_boundaries:
type_code = _CONSTRUCTION_CODE[thermal_boundary.type]
window_area = 0
if thermal_boundary.window_ratio < 1:
window_area = thermal_boundary.opaque_area * thermal_boundary.window_ratio / (1 - thermal_boundary.window_ratio)
wall_area = thermal_boundary.opaque_area * (1 + thermal_boundary.window_ratio)
if thermal_boundary.type == cte.WALL:
wall_area = wall_area * (1 - thermal_boundary.parent_surface.percentage_shared)
window_area = wall_area * thermal_boundary.window_ratio
parameters.append(type_code)
if thermal_boundary.type != cte.GROUND:
parameters.append(thermal_boundary.opaque_area + window_area)
parameters.append(wall_area)
parameters.append('0.0')
else:
parameters.append('0.0')
parameters.append(thermal_boundary.opaque_area + window_area)
parameters.append(wall_area)
parameters.append(thermal_boundary.u_value)
parameters.append(window_area)

4
hub/imports/usage/comnet_usage_parameters.py
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@ -76,7 +76,7 @@ class ComnetUsageParameters:
# usage.occupancy when writing usage.occupancy = archetype.occupancy.
# Same happens for lighting and appliances. Therefore, this walk around has been done.
usage.mechanical_air_change = archetype.ventilation_rate / volume_per_area \
* cte.HOUR_TO_MINUTES * cte.MINUTES_TO_SECONDS
* cte.HOUR_TO_SECONDS
_occupancy = Occupancy()
_occupancy.occupancy_density = archetype.occupancy.occupancy_density
_occupancy.sensible_radiative_internal_gain = archetype.occupancy.sensible_radiative_internal_gain
@ -106,6 +106,8 @@ class ComnetUsageParameters:
_domestic_hot_water = DomesticHotWater()
_domestic_hot_water.density = archetype.domestic_hot_water.density
_domestic_hot_water.service_temperature = archetype.domestic_hot_water.service_temperature
peak_flow = None
if len(cold_water_temperature) > 0:
cold_temperature = cold_water_temperature[cte.YEAR]['epw']
peak_flow = 0
if (archetype.domestic_hot_water.service_temperature - cold_temperature) > 0:

22
hub/imports/usage/nrcan_usage_parameters.py
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@ -64,7 +64,7 @@ class NrcanUsageParameters:
usage = Usage()
usage.name = usage_name
self._assign_values(usage, archetype_usage, volume_per_area, building.cold_water_temperature)
self._assign_comnet_extra_values(usage, comnet_archetype_usage)
self._assign_comnet_extra_values(usage, comnet_archetype_usage, archetype_usage.occupancy.occupancy_density)
usage.percentage = 1
self._calculate_reduced_values_from_extended_library(usage, archetype_usage)
@ -83,8 +83,8 @@ class NrcanUsageParameters:
if archetype.mechanical_air_change > 0:
usage.mechanical_air_change = archetype.mechanical_air_change
elif archetype.ventilation_rate > 0:
usage.mechanical_air_change = archetype.ventilation_rate / volume_per_area \
* cte.HOUR_TO_MINUTES * cte.MINUTES_TO_SECONDS
print(volume_per_area)
usage.mechanical_air_change = archetype.ventilation_rate / volume_per_area * cte.HOUR_TO_SECONDS
else:
usage.mechanical_air_change = 0
_occupancy = Occupancy()
@ -116,18 +116,24 @@ class NrcanUsageParameters:
_domestic_hot_water = DomesticHotWater()
_domestic_hot_water.peak_flow = archetype.domestic_hot_water.peak_flow
_domestic_hot_water.service_temperature = archetype.domestic_hot_water.service_temperature
density = None
if len(cold_water_temperature) > 0:
cold_temperature = cold_water_temperature[cte.YEAR]['epw']
_domestic_hot_water.density = archetype.domestic_hot_water.peak_flow * cte.WATER_DENSITY * cte.WATER_HEAT_CAPACITY \
density = archetype.domestic_hot_water.peak_flow * cte.WATER_DENSITY * cte.WATER_HEAT_CAPACITY \
* (archetype.domestic_hot_water.service_temperature - cold_temperature)
_domestic_hot_water.density = density
_domestic_hot_water.schedules = archetype.domestic_hot_water.schedules
usage.domestic_hot_water = _domestic_hot_water
@staticmethod
def _assign_comnet_extra_values(usage, archetype):
def _assign_comnet_extra_values(usage, archetype, occupancy_density):
_occupancy = usage.occupancy
_occupancy.sensible_radiative_internal_gain = archetype.occupancy.sensible_radiative_internal_gain
_occupancy.latent_internal_gain = archetype.occupancy.latent_internal_gain
_occupancy.sensible_convective_internal_gain = archetype.occupancy.sensible_convective_internal_gain
archetype_density = archetype.occupancy.occupancy_density
_occupancy.sensible_radiative_internal_gain = archetype.occupancy.sensible_radiative_internal_gain \
* occupancy_density / archetype_density
_occupancy.latent_internal_gain = archetype.occupancy.latent_internal_gain * occupancy_density / archetype_density
_occupancy.sensible_convective_internal_gain = archetype.occupancy.sensible_convective_internal_gain \
* occupancy_density / archetype_density
@staticmethod
def _calculate_reduced_values_from_extended_library(usage, archetype):