ITS Blog - projects illustrating the areas of intervention of ITS

Construction of an anechoic chamber for acoustic testing

Details

Published: 04 February 2025

Acoustic testing is an important phase in the development of many products, whether to determine their sound power level or their sound pressure level at specified locations (to meet certain limits in this area or to develop a particular sound e.g. telephone ringing, door closing noise, acoustic discretion of moving vehicles).

A specific measurement environment is then necessary for the associated acoustic Research and Development (R&D) work, with in general (as main objectives):

• a...

Read more: Construction of an anechoic chamber for acoustic testing

Construction of soundproof canopies for turbomachines

Details

Published: 10 January 2025

Turbomachinery has experienced a spectacular boom in recent decades, in relation to diversified applications involving an energy transfer between a rotating part (a rotor) and a fluid. This is particularly the case for combustion turbines, which in simple or combined cycle i.e. when a steam turbine and a large capacity industrial boiler - a Heat Recovery Steam Generator (HRSG) - are involved are capable of producing very large quantities of electricity (their unit power is measured in hundreds...

Read more: Construction of soundproof canopies for turbomachines

Noise reduction from gas relief vents

Details

Published: 04 December 2024

In an Air Separation Unit (ASU), gas decompression (relief) vents often allow mixtures of air and Nitrogen (N₂), or pure Oxygen (O₂), to be released into the atmosphere, which makes it necessary to reduce the noise caused, both for the protection of site personnel and for the neighborhood, because the sound power level before soundproofing can exceed 150 dB(A), which is considerable.

If the considered site is in Europe, Directive 2003/10/EC of the European Parliament and of the Council, of...

Read more: Noise reduction from gas relief vents