- Introduction: an acoustic challenge in an urban environment
- Project background
- Technical and environmental constraints
- Groupe BOËT acoustic solution
- Results measured and compliance achieved
- Conclusion and call to action
Project background
The KDDI Data Center is located in a residential area in the immediate vicinity of apartment buildings. The rooftop HVAC systems generated a significant noise level, perceptible from the facade. The objective was twofold:
- Reduce noise pollution for local residents,
- Ensuring optimal airflow for the safety of IT equipment.
The project presented severe urban constraints: limited roof access, limited available space and the need for harmonious visual integration with the existing building.
Technical and environmental constraints
A sensitive environment
The proximity of the residential units meant that acoustic requirements had to be very high. The work had to be carried out without disrupting the data center’s activity and in compliance with current environmental standards.
Precision engineering
The Groupe BOËT team had to combine expertise in industrial acoustics and aeraulics to ensure a balance between sound attenuation and maintaining the airflow rates required by the cooling systems. Acoustic and CFD simulation was used to optimize the design before manufacturing.
Groupe BOËT acoustic solution
The solution deployed was based on perimeter acoustic screens composed of acoustic grids and acoustic metal panels. Their positioning was meticulously calculated to maximize noise reduction while preserving airflow.
- Acoustic louvres sized to prevent sound regeneration,
- Acoustic panels for effective absorption of low and medium frequencies,
- Mechanically robust structure to withstand climatic stress and vibration.
This acoustic equipment has been manufactured to ISO 9001 and ISO 19443 standards, guaranteeing reliability and durability in continuous operation.
Results measured and compliance achieved
Acoustic measurements taken on the facade after installation confirmed a reduction of 12 dB(A). This result made it possible to :
- Regulatory compliance of the site,
- A clear reduction in the nuisance perceived by neighbors,
- Complete maintenance of HVAC systems’ aerodynamic and thermal performance.
The KDDI Data Center now benefits from a controlled noise environment, in line with local authority requirements and guaranteeing continuity of service for its infrastructures.
To conclude
By combining acoustic expertise, customized design and rigorous execution, Groupe BOËT was able to meet a complex technical challenge in the heart of Paris. This project demonstrates the Group’s ability to offer effective industrial acoustic solutions in sensitive urban environments.
Would you like to reduce the noise level of your HVAC installations, data centers or industrial sites?
Contact Groupe BOËT for a personalized acoustic study.
