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
| Mar 10, 2014
Meet Tally – the Revit app that calculates the environmental impact of building materials
Tally provides AEC professionals with insight into how materials-related decisions made during design influence a building’s overall ecological footprint.
Sponsored | | Mar 10, 2014
A high-performance barn
Bastoni Vineyards replaces a wooden barn with an efficient metal building used for maintenance, storage, and hosting events.
| Mar 10, 2014
Field tested: Caterpillar’s Cat B15 rugged smartphone
The B15 is billed by Cat as “the most progressive, durable and rugged device available on the market today.”
| Mar 10, 2014
5 rugged mobile devices geared for construction pros
BD+C readers share their most trusted smartphone and tablet cases. The editors select some of their faves, too.
| Mar 7, 2014
Thom Mayne's high-tech Emerson College LA campus opens in Hollywood [slideshow]
The $85 million, 10-story vertical campus takes the shape of a massive, shimmering aircraft hangar, housing a sculptural, glass-and-aluminum base building.
| Mar 7, 2014
Learning from common leadership errors
As a leader in the AEC world, you’ll likely find yourself making certain mistakes over the course of your career. Here are a few common leadership errors that can easily be avoided.
| Mar 6, 2014
BD+C wants to hear about your breakthrough ideas and projects for the Giants 300 report
BD+C's 2014 Giants 300 survey form is now available. But completing the survey is just one way to participate in the July Giants issue.
| Mar 6, 2014
Must see: Tour Seinfeld's apartment with virtual reality headset
Fans of the show can now explore a virtual 3D model of the iconic New York residence, thanks to one Web designer's painstaking effort.
| Mar 5, 2014
5 tile design trends for 2014
Beveled, geometric, and high-tech patterns are among the hot ceramic tile trends, say tile design experts.
| Mar 4, 2014
How EIFS came to America
Design experts from Hoffmann Architects offer a brief history of exterior insulation and finish systems in the U.S.
