In a power station, e.g. with one or more combustion turbines and one or more generators, noise is emitted, which could, if not heeded, deprive the residents of their tranquility and be a nuisance for the working conditions of the plant's employees.

Consideration should therefore be given to works to limit the noise impact of such installations.

The construction of buildings with high acoustic performance housing the incriminated noise sources is of course an appropriate solution, but it is then necessary to envisage consequent ventilation systems to take account of the calorific emissions of the various equipment.

Furthermore, the need to size and build such structures and to supply all its components in accordance with international standards and rules but also taking account of local regulations which are sometimes little used elsewhere is a difficulty that must be overcome on the occasion of each project.

ITS will participate in the acoustic insulation of a power station involving two high-power gas turbines (more than 120 MW in single cycle, more than 190 MW in combined cycle) in West Africa.

Given the noise levels emitted - the sound power level of the turbine is of the order of 135 dB (A), with a very wide frequency spectrum of 20 to 20 kHz - the construction systems to be considered will be distinguished by their very high performance in terms of soundproofing.

Care must be taken to make it possible to install it on site by a local workforce while taking into account the constraints of access and removability related to maintenance of high-tech hardware.