banner_img_1

BBM Acoustic Technology

Flue-gas silencers for power plants , Noise control for power plants

BBM flue-gas silencers

BBM Acoustic Technology, is the leading supplier for flue-gas silencers. We supply the whole range of silencers behind the gas turbine and for all kind of boilers. BBM Acoustic Technology has executed several  projects worldwide with the most stringent requirements.

BBM scope of supply

For the gas turbine side, we offer all hot silencers, either in the horizontal duct downstream the gas turbine diffuser, in HRSG inlet duct, or in the bypass system for every GT size and temperatures up to 700 °C. For the cold side behind the HRSG, we design silencers in the outlet duct and in the main stack.

Dimensions and materials are selected as per specification. We can supply the absorptive splitters, or both the splitters and the casing with all requested accessories. Acoustic design and calculation Gas turbines are being used more and more in power plants today.

At the same time the acoustic requirements have become more and more stringent. This means silencers are required for almost all installations that include gas turbines and heat recovery steam generators. Our acoustic design covers optimized solutions for the whole system, starting from gas turbine exhaust flange up to stack outlet. BBM Acoustic Technology is one of the first companies that gave guarantees for the whole system, based on our R&D and site measurements.

CFD calculations

Gas turbine silencers are exposed to high temperatures and to high velocity turbulent flow. Inhouse CFD studies verify the silencer design, while considering flow noise, pressure drop and mechanical stability. Gas turbine development requires an ongoing improvement of the silencer design.

BBM materials

Our specific design reflects the choice of material according to aero-thermal requirements:

Hot silencers :- stainless steel

Hot silencers :- stainless steel

Cold silencers :- galvanized or stainless steel

Cold silencers :- galvanized or stainless steel

Extremely robust and thermal load resistant design of baffles by using FEM calculations

Extremely robust and thermal load resistant design of baffles by using FEM calculations

Manufactured for all duct and stack dimensions required in practice

Manufactured for all duct and stack dimensions required in practice

The baffle infill materials are a key issue. For hot silencers, the absorbing materials are used in pillows with protection layers between perforated sheets and pillows to guarantee a long lifetime.

Specially tuned splitter design for low-frequency attenuation, where the splitter cavities are covered with solid (non-perforated) sheet metal.

Planning, 3-D design, detailed engineering and project management

Today, nearly all projects are represented in a 3-D (CAD) model. The use of this software enables us to check all critical parts to allow a »tailor-made« detailed engineering.

BBM design and development of silencers

Our know-how is based on research conducted at our in-house test facilities and on extensive field measurements, which verify our calculations. All new materials are tested in our own test stands.

Overall concept and cost optimisation

Competent engineers, using powerful computer programs with multiple optimisation routines, design the gas turbine silencers. The results of these programs and our long experience of designing industrial silencers allow us to meet the most rigorous acoustic requirements.

World wide supply and installation

Specialized teams consisting of BBM Acoustic Technology own staff or as combined teams with our partners take care of installation or supervision works.

What’s in it for you?

Acoustic design of the silencer

Acoustic design of the silencer

Guarantee for mechanical and acoustic design

Guarantee for mechanical and acoustic design

Optimisation of silencers’ pressure loss and acoustic requirements under economic aspects

Optimisation of silencers’ pressure loss and acoustic requirements under economic aspects

Access to all the experience of the Müller-BBM Group

Access to all the experience of the Müller-BBM Group

Acoustic design of the entire system

Acoustic design of the entire system

High standards for engineering

High standards for engineering

Own workshop Globally ensures high quality and in time delivery

Own workshop Globally ensures high quality and in time delivery

Fixed prices

Fixed prices

Structural design, CFD and FEM calculations on request

Structural design, CFD and FEM calculations on request

 Inspection and documentation of each silencer

Inspection and documentation of each silencer

Product Gallery

Copyright © 2020 BBM Acoustic . All rights reserved.