Ladybug Primer
Ladybug Tools for Grasshopper Documentation
  • Ladybug Primer
  • Components
    • 0 :: Import
      • Download Weather
      • EPWmap
      • Import EPW
      • Import Location
      • Construct Location
      • Deconstruct Location
      • Import DDY
      • Import STAT
      • Deconstruct Design Day
      • Import Design Day
      • EPW to DDY
    • 1 :: Analyze Data
      • Construct Data
      • Construct Data Type
      • Construct Header
      • Deconstruct Data
      • Analysis Period
      • Calculate HOY
      • Apply Analysis Period
      • Apply Conditional Statement
      • Arithmetic Operation
      • Time Interval Operation
      • Degree Days
      • Wind Speed
      • Adaptive Comfort
      • PET Comfort
      • PMV Comfort
      • UTCI Comfort
      • Indoor Solar MRT
      • Outdoor Solar MRT
      • Ankle Draft
      • Clothing by Temperature
      • Comfort Statistics
      • Convert to Timestep
      • Data DateTimes
      • Day Solar Information
      • Deconstruct Header
      • Directional Solar Irradiance
      • HOY to DateTime
      • Humidity Metrics
      • Mass Arithmetic Operation
      • Radiant Asymmetry
      • Relative Humidity from Dew Point
      • Solar MRT from Solar Components
      • Thermal Indices
    • 2 :: Visualize Data
      • Hourly Plot
      • Monthly Chart
      • Adaptive Chart
      • PMV Polygon
      • Psychrometric Chart
      • UTCI Polygon
      • Benefit Sky Matrix
      • Cumulative Sky Matrix
      • Sky Dome
      • SunPath
      • Radiation Dome
      • Radiation Rose
      • Wind Profile
      • Wind Rose
    • 3 :: Analyze Geometry
      • Direct Sun Hours
      • Incident Radiation
      • View Factors
      • View Percent
      • View Rose
      • Visibility Percent
      • Human to Sky Relation
      • Sky Mask
      • Solar Envelope
      • Surface Ray Tracing
      • Shade Benefit
      • Thermal Shade Benefit
      • Set Rhino Sun
      • View From Sun
      • Real Time Incident Radiation
    • 4 :: Extra
      • Color Range
      • FalseStartToggle
      • Generate Point Grid
      • ImageViewer
      • Legend Parameters
      • Mesh Threshold Selector
      • Preview VisualizationSet
      • Spatial Heatmap
      • Capture View
      • Legend 2D Parameters
      • Orient to Camera
      • Set View
      • To IP
      • To SI
      • To Unit
      • Unit Converter
      • Adaptive Comfort Parameters
      • PMV Comfort Parameters
      • Passive Strategies
      • Solar Body Parameters
      • Dump Data
      • Load Data
      • Open Directory
      • Open File
      • Compass
      • Magnetic to True North
      • Activities Met List
      • Area Aggregate
      • Area Normalize
      • Clothing List
      • Construct Matrix
      • Create Legend
      • Deconstruct Matrix
      • Deconstruct VisualizationSet
      • Dump VisualizationSet
      • Filter by Normal
      • Legend Parameters Categorized
      • Mesh to Hatch
      • PET Body Parameters
      • Passive Strategy Parameters
      • Screen Oriented Text
      • SortByLayers
      • Time Aggregate
      • Time Rate of Change
      • UTCI Comfort Parameters
    • 5 :: Version
      • Sync Grasshopper File
      • Versioner
      • Export UserObject
      • Legacy Updater
Powered by GitBook
On this page
  • Inputs
  • Outputs
Export as PDF
  1. Components
  2. 4 :: Extra

Adaptive Comfort Parameters

PreviousUnit ConverterNextPMV Comfort Parameters

Last updated 1 year ago

-

Create a set of parameters that define the acceptable conditions of the Adaptive thermal comfort model.

These parameters can be plugged into any of the components that compute Adaptive thermal comfort.

Inputs

  • ashrae_or_en

A boolean to note whether to use the ASHRAE-55 neutral temperature function (True) or the european neutral function (False), which is consistent with both EN-15251 and EN-16798. Note that this input will also determine default values for many of the other properties of this object.

  • neutral_offset

The number of degrees Celcius from the neutral temperature where the input operative temperature is considered acceptable. The default is 2.5C when the neutral temperature function is ASHRAE-55 (consistent with 90% PPD) and 3C when the neutral temperature function is EN (consistent with comfort class II). For ASHRAE-55, the following neutral offsets apply.

* 90 PPD - 2.5C

* 80 PPD - 3.5C

For the EN standard, the following neutral offsets apply.

* Class I - 2C

* Class II - 3C

* Class III - 4C
  • avgm_or_runmean

A boolean to note whether the prevailing outdoor temperature is computed from the average monthly temperature (True) or a weighted running mean of the last week (False). The default is True when the neutral temperature function is ASHRAE-55 and False when the neutral temperature function is EN.

  • discr_or_cont_vel

A boolean to note whether discrete categories should be used to assess the effect of elevated air speed (True) or whether a continuous function should be used (False). Note that continuous air speeds were only used in the older EN-15251 standard and are not a part of the more recent EN-16798 standard. When unassigned, this will be True for discrete air speeds.

  • cold_prevail_limit

A number indicating the prevailing outdoor temperature below which acceptable indoor operative temperatures flat line. The default is 10C, which is consistent with both ASHRAE-55 and EN-16798. However, 15C was used for the older EN-15251 standard. This number cannot be greater than 22C and cannot be less than 10C.

  • conditioning

A number between 0 and 1 that represents how "conditioned" vs. "free-running" the building is. 0 = free-running (completely passive with no air conditioning) 1 = conditioned (no operable windows and fully air conditioned) The default is 0 since both the ASHRAE-55 and the EN standards prohibit the use of adaptive comfort methods when a heating/cooling system is active. When set to a non-zero number, a neutral temperature function for heated/cooled operation derived from the SCATs database will be used. For more information on how adaptive comfort methods can be applied to conditioned buildings, see the neutral_temperature_conditioned function in the ladybug_comfort documentation.

Outputs

  • adapt_par

An Adaptive comfort parameter object that can be plugged into any of the components that compute Adaptive thermal comfort.

[source code]