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OpenStudio-ERI v0.9.0 Beta

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@shorowit shorowit released this 28 Apr 15:21
· 2647 commits to master since this release
v0.9.0-beta
a1434a2

OpenStudio-ERI version 0.9.0 Beta has been released. Two packages are available, a minimal zip with a handful of weather files and full zip with all US TMY3 weather files.

The OpenStudio-ERI workflow calculates an Energy Rating Index (ERI) using the Department of Energy's OpenStudio/EnergyPlus building simulation platform. The open-source workflow is intended to be used by residential software tools that provide a HPXML building description file.

OpenStudio-ERI v0.9.0 Beta uses OpenStudio v3.0.0, EnergyPlus v9.3.0, and a proposed HPXML v3.1.

Please visit the OpenStudio-ERI v0.9.0 Beta documentation for instructions on how to get started, how to connect software tools to the workflow, etc.

New Features

  • [Breaking Change] Updates to OpenStudio v3.0.0 and EnergyPlus 9.3.
  • [Breaking Change] Allows 301-2014 Addenda D & L to be used by providing inputs for A) duct leakage testing exemptions or B) total duct leakage in lieu of leakage to the outside. These inputs should only be used if the conditions specified in ANSI/RESNET/ICC© 301 have been appropriately met. Enumerations for SoftwareInfo/extension/ERICalculation/Version are now "latest", "2014ADEGL", "2014ADEG", "2014ADE", "2014AD", "2014A", "2014".
  • [Breaking Change] BuildingConstruction/ResidentialFacilityType is now required. Valid choices are: "single-family detached", "single-family attached", "apartment unit", "manufactured home".
  • Improves inferred infiltration height for conditioned basements (including walkout basements).
  • A new HPXML input WeatherStation/extension/EPWFilePath can be used instead of WeatherStation/WMO to point directly to the EPW file of interest.
  • Adds hot water outputs (gallons), disaggregated by end use, to annual output. Also available for timeseries outputs.
  • Improved desuperheater model; can now be connected to heat pump water heaters.
  • Solar thermal systems modeled with SolarFraction can now be connected to combi water heating systems.
  • Small improvement to calculation of component loads.
  • Allows buildings to have HVAC systems that do not condition 100% of the load (i.e., where sum of fraction heat/cool load served is greater than zero and less than one).
  • Populates more information in the ERI___Home.xml files (e.g., plug load kWh/yr).
  • [Breaking Change] The --no-ssl argument has been deprecated.
  • [Breaking Change] Switches from BuildingConstruction/extension/FractionofOperableWindowArea to Window/FractionOperable in HPXML test files.

Bugfixes

  • Fixes an unsuccessful simulation for buildings with multiple HVAC air distribution systems, each with multiple duct locations.
  • Fixes an unsuccessful simulation for buildings where the sum of multiple HVAC systems' fraction load served was slightly above 1 due to rounding.
  • Small fix for interior partition wall thermal mass model.
Assets 4