system_assignation/city_model_structure/attributes/thermal_opening.py

"""
ThermalOpening module
SPDX - License - Identifier: LGPL - 3.0 - or -later
Copyright © 2020 Project Author Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
Contributors Pilar Monsalvete Alvarez de Uribarri pilar.monsalvete@concordia.ca
"""
from typing import TypeVar

Polygon = TypeVar('Polygon')


class ThermalOpening:
  """
  ThermalOpening class
  """
  def __init__(self):
    self._area = None
    self._openable_ratio = None
    self._conductivity = None
    self._frame_ratio = None
    self._g_value = None
    self._thickness = None
    self._front_side_solar_transmittance_at_normal_incidence = None
    self._back_side_solar_transmittance_at_normal_incidence = None
    self._overall_u_value = None
    self._hi = None
    self._he = None
    self._surface_geometry = None

  @property
  def area(self):
    """
    Thermal opening area in square meters
    :return: float
    """
    return self._area

  @property
  def openable_ratio(self):
    """
    Get thermal opening openable ratio, NOT IMPLEMENTED
    :return: Exception
    """
    raise NotImplementedError

  @openable_ratio.setter
  def openable_ratio(self, value):
    """
    Set thermal opening openable ratio, NOT IMPLEMENTED
    :param value: Any
    :return: Exception
    """
    raise NotImplementedError

  @property
  def conductivity(self):
    """
    Get thermal opening conductivity in W/mK
    :return: float
    """
    return self._conductivity

  @conductivity.setter
  def conductivity(self, value):
    """
    Get thermal opening conductivity in W/mK
    :param value: float
    """
    # The code to calculate overall_u_value is duplicated here and in thickness_m.
    # This ensures a more robust code that returns the overall_u_value regardless the order the parameters are read.
    self._conductivity = value
    if self._overall_u_value is None and self.thickness is not None:
      h_i = self.hi
      h_e = self.he
      r_value = 1 / h_i + 1 / h_e + float(self.conductivity) / float(self.thickness)
      self._overall_u_value = 1 / r_value

  @property
  def frame_ratio(self):
    """
    Get thermal opening frame ratio
    :return: float
    """
    return self._frame_ratio

  @frame_ratio.setter
  def frame_ratio(self, value):
    """
    Set thermal opening frame ratio
    :param value: float
    """
    self._frame_ratio = value

  @property
  def g_value(self):
    """
    Get thermal opening g-value
    :return: float
    """
    return self._g_value

  @g_value.setter
  def g_value(self, value):
    """
    Set thermal opening g-value
    :param value: float
    """
    self._g_value = value

  @property
  def thickness(self):
    """
    Get thermal opening thickness in meters
    :return: float
    """
    return self._thickness

  @thickness.setter
  def thickness(self, value):
    """
    Set thermal opening thickness in meters
    :param value: float
    """
    # The code to calculate overall_u_value is duplicated here and in conductivity.
    # This ensures a more robust code that returns the overall_u_value regardless the order the parameters are read.
    self._thickness = value
    if self._overall_u_value is None and self.conductivity is not None:
      h_i = self.hi
      h_e = self.he
      r_value = 1 / h_i + 1 / h_e + float(self.conductivity) / float(self.thickness)
      self._overall_u_value = 1 / r_value

  @property
  def front_side_solar_transmittance_at_normal_incidence(self):
    """
    Get thermal opening front side solar transmittance at normal incidence
    :return: float
    """
    return self._front_side_solar_transmittance_at_normal_incidence

  @front_side_solar_transmittance_at_normal_incidence.setter
  def front_side_solar_transmittance_at_normal_incidence(self, value):
    """
    Set thermal opening front side solar transmittance at normal incidence
    :param value: float
    """
    self._front_side_solar_transmittance_at_normal_incidence = value

  @property
  def back_side_solar_transmittance_at_normal_incidence(self):
    """
    Get thermal opening back side solar transmittance at normal incidence
    :return: float
    """
    return self._back_side_solar_transmittance_at_normal_incidence

  @back_side_solar_transmittance_at_normal_incidence.setter
  def back_side_solar_transmittance_at_normal_incidence(self, value):
    """
    Set thermal opening back side solar transmittance at normal incidence
    :param value: float
    """
    self._back_side_solar_transmittance_at_normal_incidence = value

  @property
  def overall_u_value(self):
    """
    Get thermal opening overall U-value in W/m2K
    :return: float
    """
    return self._overall_u_value

  @overall_u_value.setter
  def overall_u_value(self, value):
    """
    Get thermal opening overall U-value in W/m2K
    :param value: float
    """
    self._overall_u_value = value

  @property
  def hi(self):
    """
    Get internal convective heat transfer coefficient (W/m2K)
    :return: float
    """
    return self._hi

  @hi.setter
  def hi(self, value):
    """
    Set internal convective heat transfer coefficient (W/m2K)
    :param value: internal convective heat transfer coefficient (W/m2K)
    """
    self._hi = value

  @property
  def he(self):
    """
    Get external convective heat transfer coefficient (W/m2K)
    :return: float
    """
    return self._he

  @he.setter
  def he(self, value):
    """
    Set external convective heat transfer coefficient (W/m2K)
    :param value: external convective heat transfer coefficient (W/m2K)
    """
    self._he = value

  @property
  def surface_geometry(self) -> Polygon:
    """
    Get the polygon that defines the thermal opening
    :return: Polygon
    """
    return self._surface_geometry