Condensation calculator - [source code]

Use this component to calculate the Dew Point, Relative Humidity and Condensation on each layer of a wall. It accounts the air films (internal and external). Sources: http://andrew.rsmas.miami.edu/bmcnoldy/Humidity.html http://www.ajdesigner.com/phphumidity/dewpoint_equation_dewpoint_temperature.php#ajscroll http://forums.finehomebuilding.com/breaktime/energy-heating-insulation/dewpoint-spreadsheet -

Inputs

• cnstrName [Required]

  EnergyPlus construction name

• surfaceType [Optional]

  An integer value from 0 to 3 that represents one of the following surface types: 0 - Exterior Wall/Window 1 - Exterior Roof 2 - Exposed Floor

• internalTemp [Required]

  Indoors temperature of room

• outTemp [Required]

  Outdoors temperature of room

• internalRelativeHumidity [Required]

  Indoors relative humidity

• basePoint [Default]

  An optional point with which to locate the 3D chart in the Rhino Model. The default is set to the Rhino origin at (0,0,0).

• scale [Default]

  The scale of the surface type section. The default is set to 1.

• bakeIt [Optional]

  An integer that tells the component if/how to bake the bojects in the Rhino scene. The default is set to 0. Choose from the following options: 0 (or False) - No geometry will be baked into the Rhino scene (this is the default). 1 (or True) - The geometry will be baked into the Rhino scene as a colored hatch and Rhino text objects, which facilitates easy export to PDF or vector-editing programs. 2 - The geometry will be baked into the Rhino scene as colored meshes, which is useful for recording the results of paramteric runs as light Rhino geometry.

Outputs

• readMe!

  ...

• materials

  List of materials (from outside to inside). Includes film Air layers. Ordered from Inside to Outside layers. They include Air Films.

• comments

  Comments for each layer of materials if any. Ordered from Inside to Outside layers

• rWall

  rWall

• tempWall

  temperature for each layer in wall (outter edge of layer). Ordered from Inside to Outside layers

• rhWall

  relative humdity for each layer in wall (outter edge of layer). Ordered from Inside to Outside layers

• dewPointWall

  Dew Point for each layer in wall (outter edge of layer). Ordered from Inside to Outside layers

• condensationWall

  State the status of condensation on wall (Yes or No). Ordered from Inside to Outside layers

• layersWallGeo

  layersWallGeo

• resultLines

  resultLines

• resultLinesColors

  resultLinesColors

• scaleRH_TempGeo

  scaleRH_TempGeo

• allLabels

  allLabels

• finalJoinedMesh

  finalJoinedMesh

• legend

  legend

• allLabels

  Script variable HB_CondensationCalculator

• wallLegendCoord

  wallLegendCoord

• allDataCurves

  allDataCurves

• textSize

  textSize

• decimalPlaces

  decimalPlaces

Check Hydra Example Files for Condensation calculator