Attenuation of sound in ducts and pipes is a fundamental area of research within Vipac's Research facility. The development of efficient and cost effective, absorptive duct liners and silencers has lead to a range of innovative products such as the 'BRONO-MUFF', a tuned absorptive / reactive muffler for low frequency noise emissions from boiler houses. Duct liners have been developed for a wide range of applications - from domestic air conditioning ducts to erosion free medically clean ducts for HEPA filters. Silencers and acoustic plenum development has been aided by:
• Extensive twin reverberation chambers for evaluation of acoustic performanceVipac's unique combination of analytical and experimental skills coupled with wide industry experience has allowed such breakthroughs as the patented 'Turbulence Trip Silencer' that dramatically reduces low frequency noise emissions from gas turbine exhausts.