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The Plovdiv-based bread and bakery products manufacturer, Simid Agro, is building a thermal power plant based on gas generators that produce steam, electricity, and hot water. To this end, they have constructed a separate building within their factory premises to house the generators. There are two generators, and for their proper operation, a ventilation system for cooling and an electrical substation are required.
Since the Simid Agro building and factory are located about 200 meters from a residential area, the Acoustic Force team was called in to assess the potential noise pollution that these gas generators could cause.
The gas generators operate 24/7 for a span of seven years, which means continuous emission of excessive noise.
Our team arrived at a stage where the building had already been constructed, the diesel generators were installed, and provisions for doors, air ducts, and cooling had already been made.
Our work began with an assessment of the existing project, after which we recommended additional measures that needed to be implemented. Using software calculations, we created a noise map that evaluated the projected sound levels and indicated that, with the measures initially in place, the diesel generators would still cause disturbance to the residents living near the factory.
To bring the noise levels within regulatory limits, we issued a series of recommendations that both the contractor and the client needed to implement in order to ensure maximum noise reduction for the facility.
The measures included: replacing the doors already ordered with sound-insulating doors rated Rw 45 dB; noise control of all air ducts running in front of the façade, with a recommendation and detail for treating them; sound-insulating partitions inside the room where the operators will work, with a recommended detail; additional steel louvres to reduce the noise escaping through the cooling grilles.
The Acoustic Force team was commissioned to manufacture the acoustic metal grilles in compliance with the required standards set out in the project. Our team designed and assembled the grilles in the Acoustic Force. Delivery and assembly took about a week. Our engineer then visited the site to give precise, clear instructions with drawings on how to install them correctly. The project ended with an inspection of all recommended details and a statement of findings. After the generators were started, the client’s control measurement showed that the noise at the dwellings is within the limit.
Similar project? See our service Industrial Noise Control or contact us via the enquiry form.
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