If this project illustrates one thing to perfection, it is that Hiacoustic is not only a provider of soundproofing solutions, but also an international market leader in acoustic solutions. In this project, the company has achieve a drastic reduction in decibels, in keeping with the exclusive ambience requested by the customer.

Acoustic challenge:

The goal has been to ensure peace and quiet prevailed 24 hours a day, 7 days a week, despite operating a Guascor 1,000 kVA generator set with an initial sound pressure level of 111 dBA. The client's requirement was to achieve internal sound pressure levels of just 65 dBA at 1 meter, although HiAcoustic managed to reduce the noise by 50 dBA, reaching 61 dBA, resulting in an ultra-silent environment. It also required the best possible ventilation solution to maintain an indoor/outdoor temperature difference of less than 5°C.

Strategic approach:

After a thorough analysis of the acoustic and ventilation requirements, it became clear that we would have to design a bespoke super-soundproofed enclosure. The strategic approach focused on combining acoustic solutions and optimised ventilation systems to meet the stringent standards required.

Technical solution:

Following the analysis, we designed and implemented a customised acoustic treatment to ensure that the internal sound pressure remained within the required limits. We also developed a ventilation system that guaranteed a temperature difference of 5ºC, one of the key requirements of this noise attenuation solution. During the installation, we carried out loudness tests inside the enclosure to confirm that the unit was working properly, with surprisingly good results.

Results:

The final field data confirmed the success of the project. The internal sound pressure inside the enclosure was reduced to 65 dBA, while the external sound pressure remained at 61 dBA at 1 metre. The temperature difference also met the requirements, with 26°C recorded inside the enclosure with the generator set running at 100% power, compared to an external temperature of 22°C.

This project demonstrates Hiacoustic's commitment to technical excellence and innovation as well as its ability to overcome demanding acoustic challenges and provide quiet and efficient operating environments.