Grasshopper Docs

Community documentation for Grasshopper add-ons & plugins

00 | Honeybee
01 | Daylight | Material
02 | Daylight | Light Source
03 | Daylight | Recipes
04 | Daylight | Daylight
05 | Energy | Building Program
06 | Energy | Material | Construction
07 | Energy | Schedule
08 | Energy | Set Zone Properties
09 | Energy | HVACSystems
10 | Energy | Energy
11 | THERM
12 | Developers
13 | WIP

Use this component to change the occupancy, lighting, equipment, etc. loads for a given Honeybee zone or list of Honeybee zones.

Inputs

NameIDDescriptionType
HBZones_HBZonesHoneybee zones for which you want to change the loads.Goo
Equipment Load Per AreaequipmentLoadPerArea_The desired equipment load per square meter of floor. Values here should be in W/m2 (Watts per square meter). Typical values can range from 2 W/m2 (for just a laptop or two in the zone) to 15 W/m2 for an office filled with computers and appliances.Goo
Infil Rate Per Area FacadeinfilRatePerArea_Facade_The desired rate of outside air infiltration into the zone per square meter of exterior facade. Values here should be in m3/s-m2 @4Pa(Cubic meters per second per square meter of exterior facade). ASHRAE recommends the following general infiltration rates based on the area of the facade exposed to the outdoors: ------------------------------------------------------------ Unit of following reference numbers: m3/s per m2 facade @4Pa ------------------------------------------------------------ 0.000071 - Passive house (0.1 cfm/sf facade @75Pa) 0.0001 - Tight building (0.14 cfm/sf facade @75Pa) 0.000285 - ASHRAE 90.1-2013 (0.4 cfm/sf facade @75Pa) 0.0003 - Average building (0.42 cfm/sf facade @75Pa) 0.0006 - Leaky building (0.84 cfm/sf facade @75Pa)Goo
Lighting Density Per ArealightingDensityPerArea_The desired lighting load per square meter of floor. Values here should be in W/m2 (Watts per square meter). Typical values can range from 3 W/m2 for efficeint LED bulbs to 15 W/m2 for incandescent heat lamps.Goo
Num Of People Per AreanumOfPeoplePerArea_The desired number of per square meter of floor at peak occupancy. Values here should be in ppl/m2 (People per square meter). Typical values can range from 0.02 ppl/m2 for a lightly-occupied household to 0.5 ppl/m2 for a tightly packed auditorium.Goo
Ventilation Per AreaventilationPerArea_The desired minimum rate of outdoor air ventilation through the mechanical system into the zone in m3/s per m2 of floor. Values here should be in m3/s-m2 (Cubic meters per second per square meter of floor). Often, this total value over the zone should be much lower than the ventilation per person (below). Typical values can range from 0.0002 m3/s-m2 for lightly-occupied houses to 0.0025 m3/s-m2 for spaces like laboratories and cleanrooms where dust contamination is a major concern.Goo
Ventilation Per PersonventilationPerPerson_The desired minimum rate of outdoor air ventilation through the mechanical system into the zone per person in the zone. Values here should be in m3/s-person (Liters per second per person in the zone). In effect, an input here will mimic demand controlled ventilation, where the ventilation through the mechanical system will change depending upon the occupancy. Most standards suggest that you should have at least 0.001 m3/s for each person in the zone but this may be increased sometimes to avoid odors or exposure to indoor pollutants.Goo
Recirculated Air Per ArearecirculatedAirPerArea_The desired minimum rate of recirculated air flow through the HVAC system in m3/s per m2 of floor. Note that this input does not affect any models run with ideal air systems and only has an effect on OpenStudio models where recirculated air is required in addtion to outdoor ventilation (such as hostpital patient rooms that require additional ventilation to limit the spread of diseases). The defult is always set to zero as most spaces do not require recirculated air.Goo

Outputs

NameIDDescriptionType
LoadsloadsThe current loads of the HBZones.Goo
HBZonesHBZonesHoneybee zones with modifided loads.Goo

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