BOSS

BuildingSync OpenStudio Simulator (BOSS) takes in BuildingSync files, creates OpenStudio workflows from their contents, and runs those workflows to create models.

1. Install OpenStudio 3.10. Check installation with

   openstudio --version
   3.10.0+ce46db07de

2. Set enviroment variable RUBYLIB to the location of your openstudio installation. Check env var with:

   echo $RUBYLIB
   /Applications/OpenStudio-3.10.0/Ruby

3. From local repo, bundle install

   bundle install

OpenStudio Compatibility Version

OpenStudio Version	BuildingSync Version	BOSS Version
3.10	2.7.0	Initial Version

L100 Audit Workflow

The following section describes the data extracted from a BuildingSync XML file and applied to the OpenStudio model via measures, as well as the list of measures used to create the OpenStudio workflow.

Measures used to translate L100 Audit XML file to an OpenStudio model

The table below maps in detail the BuildingSync XML data to measure inputs. Note that this is not always a one-to-one relationship. In the table below:

• read .../Facility as /BuildingSync/Facilities/Facility
• read .../Systems as /BuildingSync/Facilities/Facility/Systems
• read .../Site as /BuildingSync/Facilities/Facility/Sites/Site
• read .../Building as /BuildingSync/Facilities/Facility/Sites/Site/Buildings/Building

Measure	Argument	set by function in BuildingSyncReader	Read from buidingsync
set_run_period
	timesteps_per_hour		Hard Coded to 4
	begin_date		Hard Coded to 2019-01-01
	end_date		Hard Coded to 2019-12-31
ChangeBuildingLocation
	weather_file_name	get_epw_file_path	either ...Site/Address/City and .../Site/Address/Sate or requirements for get_climate_zone
	climate_zone	get_climate_zone	either .../Site/ClimateZoneType/ASHRAE/ClimateZone or .../Site/ClimateZoneType/CaliforniaTitle24/ClimateZone depending on standard
create_bar_from_building_type_ratios
	bldg_type_a	get_building_type_and_bar_division_method	.../Building/OccupancyClassification + requirements for get_total_floor_area (+ requirements for get_floor_above_grade lest defaulted to 1 + requirements for get_floor_below_grade lest defaulted to 0)
	total_bldg_floor_area	get_total_floor_area	at least one entry of /FloorArea in either .../Site/FloorAreas/ or .../Building/FloorAreas/, with FloorAreaType of "Gross", "Conditioned", "Common", "Heated and Cooled", "Heated Only", "Cooled Only", "Conditioned above grade", or "Conditioned below grade"
	floor_height	get_floor_to_floor_height	at least on entry of .../Building/Sections/Section with entry /FloorToFloorHeight
	num_stories_above_grade	get_floor_above_grade	either .../Building/FloorsAboveGrade or .../Building/ConditionedFloorsAboveGrade and .../Building/UnconditionedFloorsAboveGrade
	num_stories_below_grade	get_floor_below_grade	either .../Building/FloorsBelowGrade or .../Building/ConditionedFloorsBelowGrade and .../Building/UnconditionedFloorsBelowGrade
	building_rotation
	template	get_standard_template	either .../Building/YearOfLastMajorRemodel or .../Building/YearOfConstruction
	ns_to_ew_ratio	get_aspect_ratio	.../Building/AspectRatio
	story_multiplier_method		Hard Coded to to None
create_typical_building_from_model
	template	get_standard_template	either .../Building/YearOfLastMajorRemodel or .../Building/YearOfConstruction
	system_type	get_principal_HVAC_system_type	at least one mappable entry of .../Systems/HVACSystems/HVACSystem/PrincipalHVACSystemType
	add_swh		Hard Coded to to true
	add_hvac		Hard Coded to to true
SetLightingLoadsByLPD
	lpd	get_total_installed_power	/InstalledPower in ALL instances of .../Systems/LightingSystems/LightingSystem
set_electric_equipment_loads_by_epd
	epd	get_total_weighted_average_load	/WeightedAverageLoad in ALL instances of .../Systems/PlugLoads/PlugLoad
openstudio_results

CLI Usage (boss_cli)

The repo includes a Thor-based CLI in lib/boss_cli.rb, registered as the boss executable in the gemspec.

From the repository root, run:

bundle exec boss help

Commands

bundle exec boss write_baseline_osw BUILDINGSYNC_FILE -o OUTPUT_PATH [options]
bundle exec boss run_osw BUILDINGSYNC_FILE -o OUTPUT_PATH [options]

Options

• -o, --output_path (required): directory where BOSS writes output (for example, use an XML-specific folder such as output/v2.7.0/L100_Audit-1.0.0)
• -w, --epw_path (optional): path to a weather .epw file; if omitted, BOSS derives weather from the BuildingSync file when possible
• -v, --standard_version (optional): modeling standard used by BOSS, such as ASHRAE90.1 or CaliforniaTitle24 (defaults to ASHRAE90.1)
• -r, --run (optional, write_baseline_osw only): run the baseline workflow after writing the OSW

CLI Example: Write a baseline OSW

This example uses a BuildingSync fixture already in the repo:

bundle exec boss write_baseline_osw \
    "spec/files/v2.7.0/L100_Audit-1.0.0.xml" \
    -o output/v2.7.0/L100_Audit-1.0.0

CLI Example: Write and run with an explicit weather file

bundle exec boss write_baseline_osw \
    "spec/files/v2.7.0/Chula_Vista_ASHRAE_L2_Example_Building.xml" \
    -o output/v2.7.0/Chula_Vista_ASHRAE_L2_Example_Building \
    -v ASHRAE90.1 \
    -w weather/USA_CA_Chula.Vista-Brown.Field.Muni.AP.722904_TMY3.epw \
    -r

CLI Example: Run an existing baseline OSW

Use this when output/v2.7.0/L100_Audit-1.0.0/baseline/in.osw already exists:

bundle exec boss run_osw \
    "spec/files/v2.7.0/L100_Audit-1.0.0.xml" \
    -o output/v2.7.0/L100_Audit-1.0.0

Notes

• If your file path contains spaces, wrap it in quotes.
• The baseline OSW is written under output_path/baseline/in.osw.

Example:

bundle exec boss write_baseline_osw "spec/files/v2.7.0/L100_Audit-1.0.0.xml" -o output/v2.7.0/L100_Audit-1.0.0

Tests

To run the tests you can use the Rake task:

bundle exec rake