DOE, Autodesk team to overhaul the EnergyPlus simulation program

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.

LPA Architects conducted a post-occupancy evaluation, or POE, of the eSTEM Academy, a new high school specializing in health/medical and design/engineering Career Technical Education, in Eastvale, Calif. The POE helped LPA, the Riverside County Office of Education, and the Corona-Norco Unified School District gain a better understanding of which design innovations—such as movable walls, flex furniture, collaborative spaces, indoor-outdoor activity areas, and a student union—enhanced the education program, and how well students and teachers used these innovations.

Interior designer Creative License International fashioned this community room for P83, a 250-unit rental community in Peoria, Ariz. 2021 Multifamily Amenities study

Multifamily Housing | Jul 7, 2021

Make sure to get your multifamily amenities mix right

One of the hardest decisions multifamily developers and their design teams have to make is what mix of amenities they’re going to put into each project. A lot of squiggly factors go into that decision: the type of community, the geographic market, local recreation preferences, climate/weather conditions, physical parameters, and of course the budget. The permutations are mind-boggling.

Industrial Facilities | Jul 2, 2021

A new approach to cold storage buildings

Cameron Trefry and Kate Lyle of Ware Malcomb talk about their firm's cold storage building prototype that is serving a market that is rapidly expanding across the supply chain.

A post-pandemic ‘new normal’ for apartments, Grimm + Parker, Building Design+Construction 2021 Exercise area

Multifamily Housing | Jun 30, 2021

A post-pandemic ‘new normal’ for apartment buildings

Grimm + Parker’s vision foresees buildings with rentable offices and refrigerated package storage.

Architects | Jun 30, 2021

Perkins Eastman joins forces with MEIS

MEIS’ work on stadiums and entertainment centers spans the globe with state-of-the-art designs in the U.S., Europe, Asia, and the Middle East.

Architects | Jun 25, 2021

AIA announces Small Project Award recipients

Now in its 18th year, the AIA Small Project Awards program recognizes small-project practitioners for the high quality of their work.

Work in existing buildings will prevail in 2021

Architects | Jun 24, 2021

Post-pandemic, architects need to advocate harder for project sustainability

An AIA-Oldcastle report looks closer at the coronavirus’s impact on design and construction

Resiliency | Jun 24, 2021

Oceanographer John Englander talks resiliency and buildings [new on HorizonTV]

New on HorizonTV, oceanographer John Englander discusses his latest book, which warns that, regardless of resilience efforts, sea levels will rise by meters in the coming decades. Adaptation, he says, is the key to future building design and construction.