This article is part of BD+C's special five-part Technology Report 2014: Top tech tools and trends for AEC professionals.
For more than a decade, the U.S. Department of Energy has made its EnergyPlus energy analysis and thermal load simulation program available for free to Building Teams.
Using EnergyPlus, AEC professionals can model heating, cooling, lighting, ventilation, and other energy flows, as well as water consumption, within a building design.
But without a major rewrite of the program since its creation, using EnergyPlus could exhibit slow performance and occasionally inaccurate analysis results.
The programming language it was originally written in, Fortran, simply could not keep up with advances in the hardware and software computing environment. FORTRAN is a language aimed at scientific programs to be run by scientists for days and weeks on supercomputers, not by building designers running multiple iterations of a design idea in a matter of a few hours.
Because it wasn't well integrated with common architectural design software, EnergyPlus never gained widespread adoption by architects working in the conceptual stage of a project.
At Greenbuild 2013, Autodesk (working pro bono) turned over brand new engine source code to the DOE to create a completely rewritten EnergyPlus for a forthcoming version. The new code will be made available under the DOE’s open source license.
Autodesk’s software engineers translated EnergyPlus—more than 600,000 lines of code—to C++, a modern, object-oriented language that is better supported on mass-market hardware and software platforms.
As a result, a larger ecosystem of developers and vendors will be able to contribute updates to the code in order to improve performance and decrease the time required to run energy model simulations.
The forthcoming version will also work better with BIM applications, auditing tools, and energy dashboards after it is released and developers are able to work on improved integrations.
For more, visit: http://apps1.eere.energy.gov/buildings/energyplus.
Related Stories
| Oct 17, 2011
Clery Act report reveals community colleges lacking integrated mass notification systems
“Detailed Analysis of U.S. College and University Annual Clery Act Reports” study now available.
| Oct 17, 2011
USGBC L.A. Chapter's Green Gala to feature Jason McLennan as keynote speaker
Chapter to presents inaugural Sustainable Innovation Awards,
| Oct 17, 2011
Schneider Electric introduces UL924 emergency lighting control devices
The emergency lighting control devices require fewer maintenance costs and testing requirements than backup batteries because they comply with the UL924 standard, reducing installation time.
| Oct 14, 2011
AISC develops new interoperability strategy to move construction industry forward
AISC is working to bring that vision to reality by developing a three-step interoperability strategy to evaluate data exchanges and integrate structural steel information into buildingSMART's Industry Foundation Classes.
| Oct 14, 2011
University of New Mexico Science & Math Learning Center attains LEED for Schools Gold
Van H. Gilbert architects enhances sustainability credentials.
| Oct 14, 2011
BD+C Survey on Building Information Modeling: The Good, the Bad, and the Solutions
In a recent survey conducted by Building Design+Construction, more than 75% of respondents indicated they currently use BIM or plan to use it. Respondents were also asked to comment on their experiences with BIM, what they liked and disliked about BIM, and what BIM-related advice they would give to their peers.
| Oct 14, 2011
ACI partners with CRSI to launch new adhesive anchor certification program
Adhesive anchor installer certification required in new ACI 318-11.
| Oct 14, 2011
Midwest construction firms merge as Black and Dew
Merger is aimed at increasing market sector capabilities and building on communication and core contracting competencies.
| Oct 14, 2011
AIA Continuing Education: optimizing moisture protection and air barrier systems
Earn 1.0 AIA/CES learning units by studying this article and passing the online exam.
| Oct 12, 2011
BIM Clarification and Codification in a Louisiana Sports Museum
The Louisiana State Sports Hall of Fame celebrates the sporting past, but it took innovative 3D planning and coordination of the future to deliver its contemporary design.