Grant: Engage Grants Program

Stoddard Silencers of Canada is developing a new conceptual model of absorptive vent silencers to attain the same noisereduction in almost half of the dimensions of the conventional absorptive silencers. The vent silencers are used mainly in heavyindustries, such as power generations, oil refineries and production plants, in conjunction with systems that utilize a pressure reliefvalve. Reduced dimensions of the absorptive vent silencers provides the customers with several advantages that include reducedsupporting structures for the silencers as well as lower operating cost. This will also offer an advantage to Stoddard Silencers interms of a special product for customers at lower cost and less delivery periods. However, an important parameter in thedevelopment of this new silencer is the investigation of the pressure drop across the silencers to ensure that it doesn't exceed thatof the conventional silencers. Since these silencers are used in conjunction with systems that utilize a pressure relief valve, anincrease in the pressure drop across the silencers would result in increasing the operating pressure inside the equipment above itsrating pressure and hence an explosion could occur. Therefore, the main objective of this project is to investigate the acousticalattenuation characteristics and the pressure drop across the new conceptual vent silencers. Moreover, a criterion that can be usedto achieve minimum pressure drop for different sizes of silencers while maintaining the same level of noise attenuation will bedeveloped.