The U.S. Department of Energy and the National Labs have released updated versions of their open-source, whole-building energy modeling tools: the EnergyPlus engine and the OpenStudio software development kit and application.
EnergyPlus V8.7.0 includes the following enhancements:
- New features to support residential modeling including a new attic duct model and the Kiva ground heat exchange model.
- Support for non-rectangular windows.
- A new generalized fan model.
- Enhanced plant auto-sizing.
- Full support for variable speed DX coils.
- Regular expression support in output variables for easier report generation.
- A refactored output module for improved performance.
The release also includes resolutions and fixes to 50 known bugs and issues.
OpenStudio 2.1.0 has a new feature, a completely revamped Parametric Analysis Tool (PAT) application. The interface has been rewritten in JavaScript to leverage the browser-based Electron framework. The back end also uses the new OpenStudio 2.0 Server architecture, including OpenStudio Command Line Interface (CLI), OpenStudio Meta-CLI, and the new OpenStudio Workflow (OSW) and OpenStudio Analysis (OSA) file formats. The new PAT supports both local and cloud-based execution and adds support for “algorithmic” workflows like uncertainty quantification, design optimization, large-scale parametric analysis, and model input calibration that can automatically generate large numbers of runs. Use of the new file formats means that the new PAT is not compatible with PAT 1.X projects.
More information about all of DOE’s energy modeling software and research projects can be found at https://energy.gov/eere/build
Related Stories
| Dec 13, 2011
Regulators charge pervasive abuse of construction workers in Connecticut
Federal and state regulators say they have uncovered what they call "widespread noncompliance" with minimum wage and overtime laws in Connecticut's construction industry.
| Dec 13, 2011
Philadelphia mayor signs order for project labor agreements
Philadelphia Mayor Michael Nutter signed an executive order establishing project labor agreements for major public works projects in Philadelphia.
| Dec 13, 2011
Improved code requirements for attic ventilation
The Roof Assembly Ventilation Coalition (RAVC) participated in the development of the code.
| Dec 12, 2011
LEED-EB Outpaces LEED for New Construction
The U.S. Green Building Council’s (USGBC’s) LEED certifications for existing buildings standard is outpacing LEED for new buildings for the first time.
| Dec 12, 2011
Philadelphia Mayor Signs Order for Project Labor Agreements
Philadelphia Mayor Michael Nutter signed an executive order establishing project labor agreements for major public works projects in Philadelphia.
| Dec 12, 2011
Improved Code Requirements for Attic Ventilation
The International Code Council (ICC) recently published the 2012 International Residential Code (IRC) that includes improved code requirements for balanced intake and exhaust for ventilated attics.
| Dec 12, 2011
DOE makes 2010 ASHRAE energy standard the reference for state energy codes
The U.S. Department of Energy (DOE) issued a ruling that establishes the 2010 American Society of Heating, Refrigerating and Air-Conditioning Engineers’ (ASHRAE’s) 2010 energy efficiency standard as the commercial building reference standard for state building energy codes.
| Dec 1, 2011
Chinese cabinet approves regulation to prevent fraud in construction bidding
China’s State Council approved a regulation to standardize bidding processes for construction and other business-related projects in order to prevent fraud and misconduct.
| Dec 1, 2011
More stringent efficiency codes driving growth in green building industry
Thanks partly to upgraded building codes, the building energy efficiency market will soar more than 50% between now and 2017 to $103.5 billion, according to Pike Research.
| Dec 1, 2011
Safety tracking tool helping prevent injuries at World Trade Center site
Since putting in place their Safety Management Systems Tracking Tool three years ago, risk managers for the World Trade Center project in New York say they've seen workplace injuries, reported hazards, and workers compensation claims decline.