Zone with photovoltaics

The following tutorial demonstrates how to add photovoltaic (PV) systems to buildings.

default: !include_default
material:
  - id: MATERIAL:001  # facing brick
    thermal_conductivity: 0.6
    density: 1800.0
    specific_heat_capacity: 840.0
  - id: MATERIAL:002  # mineral wool
    thermal_conductivity: 0.035
    density: 30.0
    specific_heat_capacity: 1030.0
  - id: MATERIAL:003  # gypsum plaster
    thermal_conductivity: 0.5
    density: 1300.0
    specific_heat_capacity: 1000.0

constructions:
  - id: CONSTRUCTION:001
    layers:
      - material: MATERIAL:001
        thickness: 0.1
      - material: MATERIAL:002
        thickness: 0.1
      - material: MATERIAL:003
        thickness: 0.015
spaces:
  - occupancy:
    parameters:
      floor_area: 100.0
      average_room_height: 2.5
    id: SPACE:001
    external_boundaries:
      external_walls:
        - surface: 20
          azimuth: 0
          tilt: wall
          construction: CAVITYWALL:001
        - surface: 30
          azimuth: 1.57
          tilt: wall
          construction: CAVITYWALL:001
        - surface: 50
          azimuth: 3.14
          tilt: wall
          construction: CAVITYWALL:001
      windows:
        - surface: 5.0
          construction: EPCDOUBLE:001
          azimuth: 0
          tilt: wall
        - surface: 2.0
          construction: EPCDOUBLE:001
          azimuth: 3.14
          tilt: wall
      floor_on_grounds:
        - surface: 100.0
          construction: CONCRETESLAB:001
    emissions:
      - radiator:
          id: RADIATOR:003
          parameters:
            nominal_heating_power_positive_for_heating: 8000
            water_inlet_temperature_at_nominal_condition: 318.15
            water_outlet_temperature_at_nominal_condition: 308.15
            air_temperature_at_nominal_condition: 293.15
      - valve:
          id: VALVE:003
          parameters:
            m_flow_nominal: 0.19
          control:
            emission_control:
  - occupancy:
    parameters:
      floor_area: 70
      average_room_height: 2.5
    id: SPACE:002
    external_boundaries:
      external_walls:
        - surface: 25
          azimuth: 0
          tilt: wall
          construction: CAVITYWALLPARTIALFILL:001
        - surface: 25
          azimuth: 1.57
          tilt: wall
          construction: CAVITYWALLPARTIALFILL:001
        - surface: 34
          azimuth: 3.14
          tilt: wall
          construction: CAVITYWALLPARTIALFILL:001
      windows:
        - surface: 5.0
          construction: INS2AR2020:001
          azimuth: 0
          tilt: wall
        - surface: 2.0
          construction: INS2AR2020:001
          azimuth: 3.14
          tilt: wall
      floor_on_grounds:
        - surface: 70.0
          construction: CONCRETESLAB:001
    emissions:
      - radiator:
          id: RADIATOR:001
          parameters:
            nominal_heating_power_positive_for_heating: 5800
            water_inlet_temperature_at_nominal_condition: 318.15
            water_outlet_temperature_at_nominal_condition: 308.15
            air_temperature_at_nominal_condition: 293.15
      - valve:
          id: VALVE:001
          parameters:
            m_flow_nominal: 0.14
          control:
            emission_control:
  - occupancy:
    parameters:
      floor_area: 50.0
      average_room_height: 2.5
    id: SPACE:003
    external_boundaries:
      external_walls:
        - surface: 22
          azimuth: 3.14
          tilt: wall
          construction: CONSTRUCTION:001
        - surface: 17
          azimuth: 3.14
          tilt: wall
          construction: CONSTRUCTION:001
        - surface: 36
          azimuth: 3.14
          tilt: wall
          construction: CONSTRUCTION:001
      windows:
        - surface: 5.0
          construction: EPCDOUBLE:001
          azimuth: 3.14
          tilt: wall
      floor_on_grounds:
        - surface: 50.0
          construction: CONCRETESLAB:001
    emissions:
      - radiator:
          id: RADIATOR:002
          parameters:
            nominal_heating_power_positive_for_heating: 4500
            water_inlet_temperature_at_nominal_condition: 318.15
            water_outlet_temperature_at_nominal_condition: 308.15
            air_temperature_at_nominal_condition: 293.15
      - valve:
          id: VALVE:002
          parameters:
            m_flow_nominal: 0.11
          control:
            emission_control:
internal_walls:
  - space_1: SPACE:001
    space_2: SPACE:002
    construction: CAVITYWALL:001
    surface: 20
  - space_1: SPACE:002
    space_2: SPACE:001
    construction: CONSTRUCTION:001
    surface: 15
  - space_1: SPACE:002
    space_2: SPACE:003
    construction: CAVITYWALLPARTIALFILL:001
    surface: 22
systems:
  - boiler:
      id: BOILER:001
      variant: air_water_heat_pump
      # 14 kW at -8 degC outdoor and 45 degC supply for a 14 kW design heat loss
      parameters:
        nominal_heating_power: 14000
        temperature_supply_setpoint_heat_pump: 318.15
      control:
        boiler_control:
          id: BOILER_CONTROL:001
          variant: simple

  - pump:
      id: PUMP:001
      parameters:
        m_flow_nominal: 0.45
      control:
        collector_control:
      outlets:
        - THREE_WAY_VALVE:001
        - THREE_WAY_VALVE:002
      inlets:
        - BOILER:001
  - split_valve:
      id: SPLIT_VALVE:001
      inlets:
        - VALVE:003
        - VALVE:001
      outlets:
        - BOILER:001
  - three_way_valve:
      id: THREE_WAY_VALVE:001
      parameters:
        m_flow_nominal: 0.33
      control:
        three_way_valve_control:
      outlets:
        - TEMPERATURE_SENSOR:001
        - SPLIT_VALVE:001
  - temperature_sensor:
      id: TEMPERATURE_SENSOR:001
      outlets:
        - RADIATOR:001
        - RADIATOR:003
  - split_valve:
      id: SPLIT_VALVE:002
      inlets:
        - VALVE:002
      outlets:
        - BOILER:001
  - three_way_valve:
      id: THREE_WAY_VALVE:002
      parameters:
        m_flow_nominal: 0.11
      control:
        three_way_valve_control:
      outlets:
        - TEMPERATURE_SENSOR:002
        - SPLIT_VALVE:002
  - temperature_sensor:
      id: TEMPERATURE_SENSOR:002
      inlets:
        - THREE_WAY_VALVE:002
      outlets:
        - RADIATOR:002
solar:
  - photovoltaic:
      id: PV:001
  - photovoltaic:
      id: PV:002

Test tutorials

    from trano.main import create_model

    create_model(
        path_to_yaml_configuration_folder / "multizones_with_pv.yaml",
        library="iso_13790",
    )

General Explanation

The code snippet imports a function create_model from the trano.main module and calls it with specified parameters to create a simulation model using configurations defined in a YAML file.

Parameters Description

• path_to_yaml_configuration_folder / "multizones_with_pv.yaml"
• Path to the YAML configuration file for the model.

• Contains setup details for a multizone model with photovoltaic (PV) systems.

• library="iso_13790"

• Specifies the library to be used for the simulation.
• In this case, it refers to ISO 13790, which pertains to energy performance of buildings.

The figure below illustrates the model generated by incorporating the PV-related subcomponent into the existing components.

Opening the solar component reveals the defined PVs assigned to the model.

Results

Two January weeks simulated with Buildings: the zone temperatures, the heat of the radiators and of the heat pump, and the electricity the heat pump draws against the production of the PV arrays.