Boiler silencers - other process

Quarter wave resonator

The quarter wave resonator is a silencer made of a closed bend at one end (90° elbow with bottom). It is characterised by the fact that no flow runs through it.

This silencer is by definition highly selective, i.e. it attenuates noise within a very narrow frequency range.

The distance of its location in the flue is very important and must be determined very precisely to obtain good results. It is used for an emergent noise at a carefully defined frequency