silencer self noise

[mechmaj]

When we shall consider to use a vent silencer to reduce the noise created by venting steam to the atmosphere, the pressure drop due to silencer will create a noise.
can anyone say how can we calculate silencer self noise?
thank you

 

[DSB123]

mechmaj,
Silencers contain acoustic insulation/muffling and are generally designed by specialist companies who ensure that the noise specification is met. It's a waste of time and effort to attempt to do this yourself.