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C.G. Project Coordinator (Provence Alpes Côte d'Azur region, France)

 

ITS has participated in the construction of an exhaust silencer for an industrial genset, in order to reduce noise emissions (related to the evacuation of flue gases) from a heat engine used for energy production.

The soundproofing device has been inserted into the exhaust line, making it possible to reduce the noise upstream of the chimney of the thermal power station, so as to avoid any noise nuisance for the neighborhood which, otherwise, could have been caused by a excessive sound power level at the outlet.

Such an establshment, classified for environmental the protection (ECEP), is subject to a strict regulation for the prevention of neighborhood noise, based on emergence i.e. on the difference between the A-weighted equivalent continuous pressure levels of ambient noise (establishment in operation) and residual noise (in the absence of noise generated by the establishment, but measured over the operating period of the establshment): 3 dB (A) is the permissible emergence for the period 22h - 7h, as well as Sundays and public holidays, for Zones with Regulated Emergence (ZRE) when the ambient noise level (including the noise of the establshment) is greater than 45 dB (A).

A careful dimensioning must therefore be carried out in the case of an exhaust silencer for an industrial genset, because its acoustic performance must not generate a total pressure loss that is too high, affecting the efficiency of the installation.

In addition, durability is a criterion of choice for an exhaust silencer for an industrial genset.