SEATTLE — While duct silencers help quiet the rumble of air conditioning systems, choosing the wrong ones can create another source of unwanted noise. In some cases, system designers fail to consider ...

Real life systems quite often do not have the recommended spaces required for straight silencers. As a result, silencers located in close proximity (three to five duct diameters, it recommends) to ...

Figure 1. New silencer baffles are being hoisted to the duct. Simple cycle power plants are an integral part of our current electrical generating network, as they can be quickly started and ...