Transformation Earth Simulation Lab (ESL)
| Client | Utrecht University |
| Completion time | 2014 - 2019 |
| Market | Educational buildings |
| Team | |
| In collaboration with | Barcode Architects |
| Location | Utrecht |
| Project scope | Circa 7,000 m2 |
| Expertises | |
High-quality renovation
The Robert J. van de Graaff Laboratory was originally built to house a particle accelerator. However, this function had long ceased, yet the distinctive, robust construction with 1-meter-thick walls and heavily reinforced concrete columns and floor structure was preserved in the design. All interior elements were meticulously renewed, including installations, floors, walls, ceilings, and the facade. The 7,000 m² building comprises various spaces, ranging from workshops, cold storage rooms, and storage areas to laboratories, microscopy rooms, and offices.
Character-defining facade
The character of the new ESL is determined by its facade. It boldly represents the identity of the geosciences institute. The horizontal bands continue the design language from the former Robert J. van de Graaff Laboratory and harmonize with the surrounding buildings. These bands consist of unique concrete panels featuring an abstract depiction of the Dutch delta landscape. The meandering lines of the delta are preserved in the concrete and adorned with polished stainless steel strips. The interplay of light creates the impression of a flowing water delta. Thus, the facade symbolizes the world of geosciences and serves as a remarkable calling card for groundbreaking research within the lab.
From design challenges to unique transformation
The design challenges at ESL included limited available floor height, high noise exposure on the facade, and the ambition to create a comfortable, energy-efficient, and future-proof building with ample daylight and views. To achieve these goals, the concept of a second skin facade was applied, mechanical supply ventilation was introduced, and indirect heat recovery occurs through the air exhaust in the cavity of the second skin facade.
BREEAM Excellent
In addition, geothermal energy storage is utilized in the ground. This substantially reduces energy consumption and allows for more compact installations. As a result, the total primary energy usage is even lower than that of a traditional balanced ventilation system with heat recovery. This innovative solution earned the building an excellent BREEAM rating, which is exceptional for a laboratory building, especially one that underwent transformation.
The ESL institute is a flagship of Utrecht University; its distinctive facade beautifully symbolizes the high-quality world of geosciences.
In 2019, ESL received the Betonprijs (Concrete Award) in the Utility Construction category.
Images © Christian van der Kooy
