Module: OpenstudioStandards::Constructions

Defined in:
lib/openstudio-standards/constructions/modify.rb,
lib/openstudio-standards/constructions/information.rb,
lib/openstudio-standards/constructions/materials/modify.rb

Defined Under Namespace

Modules: Materials

Modify collapse

Information collapse

Class Method Details

.construction_add_new_opaque_material(construction, layer_index: 0, name: nil, roughness: nil, thickness: nil, conductivity: nil, density: nil, specific_heat: nil, thermal_absorptance: nil, solar_absorptance: nil, visible_absorptance: nil) ⇒ OpenStudio::Model::StandardOpaqueMaterial

add new material layer to a construction



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# File 'lib/openstudio-standards/constructions/modify.rb', line 21

def self.construction_add_new_opaque_material(construction,
                                              layer_index: 0,
                                              name: nil,
                                              roughness: nil,
                                              thickness: nil,
                                              conductivity: nil,
                                              density: nil,
                                              specific_heat: nil,
                                              thermal_absorptance: nil,
                                              solar_absorptance: nil,
                                              visible_absorptance: nil)

  # make new material

  new_material = OpenStudio::Model::StandardOpaqueMaterial.new(construction.model)
  if name.nil?
    new_material.setName("#{construction.name} New Material")
  else
    new_material.setName(name)
  end

  # set requested material properties

  new_material.setRoughness(roughness) unless roughness.nil?
  new_material.setThickness(thickness) unless thickness.nil?
  new_material.setConductivity(conductivity) unless conductivity.nil?
  new_material.setDensity(density) unless density.nil?
  new_material.setSpecificHeat(specific_heat) unless specific_heat.nil?
  new_material.setThermalAbsorptance(thermal_absorptance) unless thermal_absorptance.nil?
  new_material.setSolarAbsorptance(solar_absorptance) unless solar_absorptance.nil?
  new_material.setVisibleAbsorptance(visible_absorptance) unless visible_absorptance.nil?

  # add material to construction

  construction.insertLayer(layer_index, new_material)

  return new_material
end

.construction_get_solar_reflectance_index(construction) ⇒ Double

Returns the solar reflectance index of an exposed surface. On a scale of 0 to 100, standard black is 0, and standard white is 100. The calculation derived from ASTM E1980 assuming medium wind speed.



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# File 'lib/openstudio-standards/constructions/information.rb', line 12

def self.construction_get_solar_reflectance_index(construction)
  exposed_material = construction.to_LayeredConstruction.get.getLayer(0)
  solar_absorptance = exposed_material.to_OpaqueMaterial.get.solarAbsorptance
  thermal_emissivity = exposed_material.to_OpaqueMaterial.get.thermalAbsorptance
  x = (20.797 * solar_absorptance - 0.603 * thermal_emissivity) / (9.5205 * thermal_emissivity + 12.0)
  sri = 123.97 - 141.35 * x + 9.6555 * x * x

  return sri
end

.construction_set_get_constructions(default_construction_set) ⇒ Array<OpenStudio::Model::Construction>

report names of constructions in a construction set



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# File 'lib/openstudio-standards/constructions/information.rb', line 26

def self.construction_set_get_constructions(default_construction_set)
  construction_array = []

  # populate exterior surfaces

  if default_construction_set.defaultExteriorSurfaceConstructions.is_initialized
    default_surface_constructions = default_construction_set.defaultExteriorSurfaceConstructions.get
    construction_array << default_surface_constructions.floorConstruction.get if default_surface_constructions.floorConstruction.is_initialized
    construction_array << default_surface_constructions.wallConstruction.get if default_surface_constructions.wallConstruction.is_initialized
    construction_array << default_surface_constructions.roofCeilingConstruction.get if default_surface_constructions.roofCeilingConstruction.is_initialized
  end
  # populate interior surfaces

  if default_construction_set.defaultInteriorSurfaceConstructions.is_initialized
    default_surface_constructions = default_construction_set.defaultInteriorSurfaceConstructions.get
    construction_array << default_surface_constructions.floorConstruction.get if default_surface_constructions.floorConstruction.is_initialized
    construction_array << default_surface_constructions.wallConstruction.get if default_surface_constructions.wallConstruction.is_initialized
    construction_array << default_surface_constructions.roofCeilingConstruction.get if default_surface_constructions.roofCeilingConstruction.is_initialized
  end
  # populate ground surfaces

  if default_construction_set.defaultGroundContactSurfaceConstructions.is_initialized
    default_surface_constructions = default_construction_set.defaultGroundContactSurfaceConstructions.get
    construction_array << default_surface_constructions.floorConstruction.get if default_surface_constructions.floorConstruction.is_initialized
    construction_array << default_surface_constructions.wallConstruction.get if default_surface_constructions.wallConstruction.is_initialized
    construction_array << default_surface_constructions.roofCeilingConstruction.get if default_surface_constructions.roofCeilingConstruction.is_initialized
  end
  # populate exterior sub-surfaces

  if default_construction_set.defaultExteriorSubSurfaceConstructions.is_initialized
    default_subsurface_constructions = default_construction_set.defaultExteriorSubSurfaceConstructions.get
    construction_array << default_subsurface_constructions.fixedWindowConstruction.get if default_subsurface_constructions.fixedWindowConstruction.is_initialized
    construction_array << default_subsurface_constructions.operableWindowConstruction.get if default_subsurface_constructions.operableWindowConstruction.is_initialized
    construction_array << default_subsurface_constructions.doorConstruction.get if default_subsurface_constructions.doorConstruction.is_initialized
    construction_array << default_subsurface_constructions.glassDoorConstruction.get if default_subsurface_constructions.glassDoorConstruction.is_initialized
    construction_array << default_subsurface_constructions.overheadDoorConstruction.get if default_subsurface_constructions.overheadDoorConstruction.is_initialized
    construction_array << default_subsurface_constructions.skylightConstruction.get if default_subsurface_constructions.skylightConstruction.is_initialized
    construction_array << default_subsurface_constructions.tubularDaylightDomeConstruction.get if default_subsurface_constructions.tubularDaylightDomeConstruction.is_initialized
    construction_array << default_subsurface_constructions.tubularDaylightDiffuserConstruction.get if default_subsurface_constructions.tubularDaylightDiffuserConstruction.is_initialized
  end
  # populate interior sub-surfaces

  if default_construction_set.defaultInteriorSubSurfaceConstructions.is_initialized
    default_subsurface_constructions = default_construction_set.defaultInteriorSubSurfaceConstructions.get
    construction_array << default_subsurface_constructions.fixedWindowConstruction.get if default_subsurface_constructions.fixedWindowConstruction.is_initialized
    construction_array << default_subsurface_constructions.operableWindowConstruction.get if default_subsurface_constructions.operableWindowConstruction.is_initialized
    construction_array << default_subsurface_constructions.doorConstruction.get if default_subsurface_constructions.doorConstruction.is_initialized
    construction_array << default_subsurface_constructions.glassDoorConstruction.get if default_subsurface_constructions.glassDoorConstruction.is_initialized
    construction_array << default_subsurface_constructions.overheadDoorConstruction.get if default_subsurface_constructions.overheadDoorConstruction.is_initialized
    construction_array << default_subsurface_constructions.skylightConstruction.get if default_subsurface_constructions.skylightConstruction.is_initialized
    construction_array << default_subsurface_constructions.tubularDaylightDomeConstruction.get if default_subsurface_constructions.tubularDaylightDomeConstruction.is_initialized
    construction_array << default_subsurface_constructions.tubularDaylightDiffuserConstruction.get if default_subsurface_constructions.tubularDaylightDiffuserConstruction.is_initialized
  end
  # populate misc surfaces

  construction_array << default_construction_set.interiorPartitionConstruction.get if default_construction_set.interiorPartitionConstruction.is_initialized
  construction_array << default_construction_set.spaceShadingConstruction.get if default_construction_set.spaceShadingConstruction.is_initialized
  construction_array << default_construction_set.buildingShadingConstruction.get if default_construction_set.buildingShadingConstruction.is_initialized
  construction_array << default_construction_set.siteShadingConstruction.get if default_construction_set.siteShadingConstruction.is_initialized

  return construction_array
end

.construction_set_surface_properties(construction, roughness: nil, thermal_absorptance: nil, solar_absorptance: nil, visible_absorptance: nil) ⇒ OpenStudio::Model::OpaqueMaterial

set construction surface properties



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# File 'lib/openstudio-standards/constructions/modify.rb', line 65

def self.construction_set_surface_properties(construction,
                                             roughness: nil,
                                             thermal_absorptance: nil,
                                             solar_absorptance: nil,
                                             visible_absorptance: nil)

  surface_material = construction.to_LayeredConstruction.get.getLayer(0)
  new_material = OpenstudioStandards::Constructions::Materials.opaque_material_set_surface_properties(surface_material,
                                                                                                      roughness: roughness,
                                                                                                      thermal_absorptance: thermal_absorptance,
                                                                                                      solar_absorptance: solar_absorptance,
                                                                                                      visible_absorptance: visible_absorptance)
  return new_material
end